Shishir Kumar Sahu, Ph. D. Professor Civil Engineering Department National Institute of Technology, Rourkela Orissa, India

Size: px
Start display at page:

Download "Shishir Kumar Sahu, Ph. D. Professor Civil Engineering Department National Institute of Technology, Rourkela Orissa, India"

Transcription

1 Shishir Kumar Sahu, Ph. D. Professor Civil Engineering Department National Institute of Technology, Rourkela Orissa, India

2 Introduction Review Of Literature Aim & Scope Of Present Investigation Finite Element Method Mathematical Formulation Results & Discussion Conclusion References 2

3 A structural composite is a material system combining two or more phases on a macroscopic scale, whose mechanical performance and properties are designed to be superior of those constituted materials acting independently 3

4 Ceramic matrix composites(sili con carbide fibers in silicon fiber matrix) Metal matrix composites(bor on fiber in aluminium matrix) Carbon/carbon matrix(carbon fiber in carbon matrix) Fiber reinforced composite polymer matrix composites(e glass fiber with Epoxy matrix) 4

5 There is a increase in utilization of composite materials in thin walled structural components of aircrafts, submarines, automobiles and other high- performance application areas, when exposed to high temperature and moisture changes in vibration static stability dynamic stability under different loading conditions. 5

6 6

7 Tooth colored filling materials. Used to repair broken front teeth and replacing defective. 7

8 Static analysis Author year Method used Paper details Ashton & Whitney Sairam & Sinha 1971 classical plate theory 1991 First Order Shear Deformation Theory (FSDT) Patel et al higher-order theory studied the hygrothermal effects on bending, buckling and vibration of composite laminated plates by Ritz method The effect of moisture and temperature on the deflections and stress resultants are presented for simply supported and clamped antisymmetric cross-ply and angle-ply laminates using reduced lamina properties at elevated moisture concentration and temperature. He used an isoparametric quadratic element which takes shear deformation into account. Static and dynamic characteristics of thick composite laminates exposed to hygrothermal environment. He employed a 8 noded quadrilateral isoparametric higher order finite element. He evaluated deflection, buckling & 8

9 Author year Method used Rao & Sinha 2004 finite element analysis Upadhyay et al. cont Paper details Studied the bending characteristics of thick multidirectional fibrous composite plates 2010 HSDT Studied solution for nonlinear flexural response of elastically supported cross-ply and angle-ply laminated composite plates with different lamination scheme & B.C. under hygrothermal environment. 9

10 Stability analysis Author Year Theory applied Paper details Sairam & Sinha 1991 FSDT hygrothermal effects on the buckling of composite laminated plates using the finite element method Chao Shyu & 1996 first-order shear deformation plate theory (FSDT). calculate the buckling loads for composite laminated plates under hygrothermal environments, where a micro to- macromechanical analytical model was proposed. Shen 2002 HOSDT hygrothermal conditions on the buckling and post buckling of shear deformable laminated cylindrical panels subjected to axial compression using a micro-to-macromechanical analytical model. He concern the post-buckling behavior of anti-symmetric angle-ply and symmetric cross-ply laminated plates under different sets of environmental conditions. 10

11 Cont Author Year Method Paper details Barton jr Raleigh-Ritz method presented the elastic buckling of rectangular, symmetric angle-ply laminates subjected to a uniform moisture environment. This investigation presents an alternative method of computing the buckling load using eigen values. 11

12 Author year Method Paper details Bolotin 1964 analytical Studied on dynamic stability of structures Balamurugan et al FEM Studied the instability of anisotropic laminated composite plates using 9-noded quadrilateral element & studied the effect of a large amplitude on the dynamic instability for a simply supported laminated composite plate. Results shows increase in aspect ratio reduces the dynamic strength. Ganapathi 2000 FEM Studied the instability of the elastic plates considering geometric non-linearity. Dey & Singha 2006 FEM Studied the dynamic stability characteristics of simply supported laminated composite skew plates subjected to a periodic in-plane load. The formulation includes the effects of transverse shear deformation, in-plane and rotary inertia. The boundaries of the instability regions are 12

13 Effect of temperature and moisture on buckling of laminated composite plates. Effect of temperature and moisture on dynamic stability analysis of composite plate. Experiment to study the hygrothermal effects on stability of laminated composite plates. The effects of aspect ratio, thickness ratio, ply orientation, load parameters and degree of orthotropy on first few frequencies of the laminated plate subjected to hygrothermal loading. 13

14 The governing equations have been developed using first order deformation theory (FSDT). The constitutive relation for the plate, when subjected to moisture and temperature, are given by {F}= [D]{ε}-{F N }.. (1) Where {F}= {N x, N y, N xy, M x, M y, M xy, Q x, Q y } T {F N } = {N x N, N yn, N xyn, M xn, M yn, M xyn, 0, 0} T {ε} ={ε x, ε y, γ xy, κ x, κ y, κ xy, φ x, φ y } T 14

15 Diagram 15

16 Cont Where, N x,n y,n xy = in-plane internal force resultants per unit length. M x,m y,m xy = internal moment resultants per unit length. Q x,q y = transverse shear resultants. N xn,n yn,n N xy = in-plane non mechanical force resultants per unit length due to moisture and temperature. M xn,m yn,m N xy = non-mechanical moment resultants per unit length due to moisture and temperature. ε x, ε y, γ xy = in-plane strains of the mid-plane κ x,κ y, κ xy = curvature of the plate Φ x, φ y = shear rotations in X-Z and Y-Z planes respectively. 16

17 Cont A ij, B ij, D ij and S ij are the extensional, bendingstretching coupling, bending and transverse shear stiffnesses. α = shear correction factor 17

18 n _ A ij = (Z k -Z k-1 ) B ij = (Z 2 k-z 2 k-1) D ij = (Q) (Z 3 k-z 3 k k-1) For i,j = 1,2,6 k S ij = α k n k n 1 1 k 1 n (Q) _ (Q) 1 k k (Q) k Cont (Z k -Z k-1 ) For i,j = 4,5 (2) Z k,z k-1 = bottom and top distance of lamina from mid-plane 18

19 The non-mechanical force and moment n _ resultants are expressed as (Q) { N xn, N N y, N N xy } T k k 1 = {e} k (Z k -Z k-1 ) {M xn,m yn,m xyn } T = k n k(z 2 k-z 2 k-1) Where {e} k = {e x, e y, e xy } T = [T]{β 1, β 2 } kt (C-C 0 )+ [T]{α 1 α 2 } kt (T-T 0 ) 1 _ (Q) k 19

20 T cos sin 2 2 sin 2 sin cos 2 2 cos2 e x, e y, e xy = non-mechanical strains due to moisture and temperature β 1, β 2 = moisture coefficients along 1 and 2 axes of a lamina, respectively α 1,α 2 = thermal coefficients along 1 and 2 axes of a lamina, respectively T,T 0 = elevated and reference temperatures C,C 0 = elevated and reference moisture concentrations 20

21 k n 1 _ (Q) k in equations (2) and (3) is defined as (Q) =[T 1 ] T k [Q ij ] k [T 1 ] (Q) = [T 1 ] T k [Q ij ][T 1 ] For i,j =1,2,6 k n 1 _ k n 1 _ n k 1 _ (Q) k = [T 2 ] T [Q ij ][T 1 ] For i,j = 4,5 (4) 21

22 Eight nodded isoparametric element is used for static stability analysis of woven fiber composite plates subjected to hygrothermal loading. Five degrees of freedom u, v, w, θ x and θ y are considered at each node. The stiffness matrix, the initial stress stiffness matrix, the mass matrix & the nodal load vectors of the element are derived by using the principle of minimum potential energy. Arbitrarily oriented laminated plate Geometry of an N-layered laminate 22

23 The stiffness matrix, the initial stress stiffness matrix, the mass matrix and the load vectors of the element, given by equations (9) and (12)-(15), are evaluated by first expressing the integrals in local natural co-ordinates, of the element and then performing numerical integration by using Gaussian quadrature. Then the element matrices are assembled to obtain the respective global matrices [K], [K σ ], [M],{P}, {P N }. The first part of the solution is to obtain the initial stress resultants induced by the external transverse static load and by moisture and temperature in static conditions. [K]{δ i } = {P}+{p N }.(16) 23

24 Then the initial stress resultants N x i, N y i,n xyi, M xi, M yi, M xyi, Q x i and Q y i are obtained from equations (1) and (8). The second part of the solution involves determination of natural frequencies from the condition. [[K] +[K σ ]]-ω n2 [M] = 0 ω n = natural frequency 24

25 A computer program is developed by using MATLAB environment to perform all the necessary computations. The element stiffness and mass matrices are derived using a standard procedure. Numerical integration technique by Gaussian quadrature is adopted for the element matrix. Subspace iteration method is adopted throughout to solve the eigenvalue problems. 25

26 Convergence Study Comparison with Previous Studies Numerical Results 26

27 , Convergence of non-dimensional free vibration frequencies for SSSS 4 layer plates for different ply orientations at 325K temperature a/b=1, a/t=100, na / / E t K / K E E G G12 G 12 G G Mesh Division Non-dimensional frequencies at Temperature (0/90/90/0) (45/-45/-45/45) Sairam & Sinha(1992) ( 8.088) _ 27

28 Table 1: Comparison of non-dimensional free vibration frequencies for simply supported four layer (0/90/90/0) cross-ply plates a/b=1,a/t=100, At T=300K, E 1 =130x10 9 N/m 2, E 2 =9.5x10 9 N/m 2,G 13 =G 12 G 12 =6x10 9 N/m 2, G 23 = 0.5G 12, υ 12 =0.3, α 1 =-0.3x10-6 / 0 K, α 2 =28.1x10-6 / 0 K Non dimensional frequency, λ=ω n a 2 t 2 Methods Non- dimensional frequencies at 325K Temperature Sairam & Sinha (1991) Patel & Ganapathi(2002) Present FEM

29 Table 2: Comparison of non-dimensional free vibration frequencies for simply supported four layer (0/90/90/0) cross-ply plates a/b=1,a/t=100 At C=0.00, E 1 =130x10 9 N/m 2, E 2 =9.5x1 0 9 N/m 2,G 13 =G 12 G 12 =6x10 9 N/m 2, G 23 = 0.5G 12, υ 12 =0.3, β 1 = 0, β 2 = 0.44 Non dimensional frequency, λ=ω n a 2 t 2 Methods Non- dimensional frequencies at C = 0.1% Sairam Sinha(1992) & Patel Ganapathi(2002) & _ Present FEM (9.4223) ( ) ( ) ( ) 29

30 E 130Gpa 1 Methods E2 9. 5Gpa G 6Gpa K K 1 / N xcr N xcr 2 / C 0%, T 300K,,,,,,,,, G13 G G12 T 300K G Non-dimensional critical load 12 Sairam & Sinha Present FEM Patel,Ganapathi& Makhecha Present FEM At T=325K (0.4481) (0.4457) At C=0.1% (0.6095) (0.6078) 30

31 Frequency Effect of temperature on non-dimensional frequency of (45/-45/45/- 45) laminate vibration Temperature 31

32 Frequency Effect of moisture on non-dimensional frequency of (45/-45/45/- 45) laminate vibration Moisture 32

33 Frequency Frequency 1.6 buckling buckling Temperature Moisture 33

34 Dynamic load factor temp=0k temp=325k temp=350k temp=375k temp=400k Non-dimensional excitation frequency 34

35 Dynamic load factor mois=0% mois=0.1% mois=0.25% mois=0.5% Non-dimensional excitation frequency 35

36 Dynamic load factor plate cylindrical spherical Non-dimensional excitation frequency 36

37 Dynamic load factor a/b=1,b/t=100 a/b=2,b/t=100 a/b=3,b/t= Non-dimensional excitation frequency 37

38 Dynamic load factor a/b=1,b/t=100 a/b=2,b/t=100 a/b=3,b/t= Non-dimensional excitation frequency 38

39 Dynamic load factor a/b=1,ry=2.5 a/b=2,ry=2.5 a/b=3,ry= Non-dimensional excitation frequency 39

40 Dynamic load factor a/b=1,ry=2.5 a/b=2,ry=2.5 a/b=3,ry= Non-dimensional excitation frequency 40

41 Dynamic load factor E1/E2=10 E1/E2=20 E1/E2= Non-dimensional excitation frequency 41

42 Dynamic load factor E1/E2=10 E1/E2=20 E1/E2= Non-dimensional excitation frequency 42

43 The excitation frequencies of laminated composite panels decrease with increase of temperature due to reduction of stiffness for all laminates. The excitation frequencies of laminated composite panels also decrease substantially with increase of moisture concentration for all laminates. Due to static component of load, the onset of instability shifts to lower frequencies with wide instability regions of the laminated composite panels. 43

44 Increasing the thickness of the panels results in better dynamic stability strength. Increasing the aspect ratio, shifts the frequencies of instability region to higher values and reduces the dynamic stability strength. The width of dynamic instability region is smaller for square panels than rectangular panels. 44

45 [1] Adams DF, Miller AK. Hygrothermal micro stress in unidirectional composite exhibiting inelastic materials behavior. Journal of Composite Material 1977;11: [2] Balamurugan,V., Ganapathi,M.,and Varadan,T.K.Nonlinear dynamic instability of laminated composite plates using finite element method.computers and Structures,60(1), ,1996. [3] Bolotin, V.V.The Dynamic stability of elastic systems.holdenday,sanfrancisco,1964 [4]Ganapati, M., Patel,B.P., Boisse,P., and Touratier,M.Nonlinear dynamic stability characteristics of elastic plates subjected to periodic in-plane load. International journal Non-linear Mechanics, 35, ,2000. [5] Ishikawa T, Koyama K, Kobayayaski S. Thermal expansion coefficients of unidirectional composites. Composite Material 1978;12:

46 [6] Lee SY, Yen WJ. Hygrothermal effects on the stability of a cylindrical composite shell panel. Journal of Computers and Structures 1989;33:551}9. [7] Lee SY, Chou CJ, Jang JL, Lim JS. Hygrothermal effects on the linear and nonlinear analysis of symmetric angle-ply laminated plates. Journal of Composite Structure 1992;21-1:41 8. [8] Patel BP, Ganapathi M, Makhecha DP. Hygrothermal effects on the structural behavior of thick composite laminates using higher order theory. Journal of Composite Structure 2002;56: [9] Qatu MS, Leissa AW. Buckling or transverse deformations of unsymmetrically laminated plates subjected to in-plane loads. AIAA Journal 1993;31:189}94. [10] Ram KSS, Sinha PK. Hygrothermal effects on the buckling of laminated composite plates. Journal of Composite Structures 1992;21:233}47. [11] Rao VVS, Sinha PK. Bending characteristic of thick multidirectional composite plates under hygrothermal environment. Reinforced Plastics Composite 2004;23:

47 [12] Reddy JN. Mechanics of laminated composite plates: theory and analysis. Boca Raton, FL: CRC Press, [13] Sai Ram KS, Sinha PK. Hygrothermal effects on the bending characteristics on laminated composite plates. Journal of Composite Structures 1991;40: [14] Shen HS. Hygrothermal effects on the nonlinear bending of shear deformable laminated plates. Journal of Engineering Mechanics 2002;128: [15] Snead JM, Palazotto AN. Moisture and temperature effects on the instability of cylindrical composite panels. Journal of Aircraft 1983;20:777}83. [16] Strife JR, Prewo KM. The thermal expansion behavior of unidirectional and bidirectional Kevlar/epoxy composites. Journal of Composite Material 1979;13: [17] Tsai SW, Hahn HT. Introduction to composite materials. Westport, CT: Technomic Publishing Co, [18] Whitney JM, Ashton JE. Effect of environment on the elastic response of layered composite plates. AIAA 1971;9:

48 48

Dynamic Analysis of Laminated Composite Plate Structure with Square Cut-Out under Hygrothermal Load

Dynamic Analysis of Laminated Composite Plate Structure with Square Cut-Out under Hygrothermal Load Dynamic Analysis of Laminated Composite Plate Structure with Square Cut-Out under Hygrothermal Load Arun Mukherjee 1, Dr. Sreyashi Das (nee Pal) 2 and Dr. A. Guha Niyogi 3 1 PG student, 2 Asst. Professor,

More information

Vibration Behaviour of Laminated Composite Flat Panel Under Hygrothermal Environment

Vibration Behaviour of Laminated Composite Flat Panel Under Hygrothermal Environment International Review of Applied Engineering Research. ISSN 2248-9967 Volume 4, Number 5 (2014), pp. 455-464 Research India Publications http://www.ripublication.com/iraer.htm Vibration Behaviour of Laminated

More information

DYNAMIC FAILURE ANALYSIS OF LAMINATED COMPOSITE PLATES

DYNAMIC FAILURE ANALYSIS OF LAMINATED COMPOSITE PLATES Association of Metallurgical Engineers of Serbia AMES Scientific paper UDC:669.1-419:628.183=20 DYNAMIC FAILURE ANALYSIS OF LAMINATED COMPOSITE PLATES J. ESKANDARI JAM 1 and N. GARSHASBI NIA 2 1- Aerospace

More information

Computational Analysis for Composites

Computational Analysis for Composites Computational Analysis for Composites Professor Johann Sienz and Dr. Tony Murmu Swansea University July, 011 The topics covered include: OUTLINE Overview of composites and their applications Micromechanics

More information

FLEXURAL RESPONSE OF FIBER RENFORCED PLASTIC DECKS USING HIGHER-ORDER SHEAR DEFORMABLE PLATE THEORY

FLEXURAL RESPONSE OF FIBER RENFORCED PLASTIC DECKS USING HIGHER-ORDER SHEAR DEFORMABLE PLATE THEORY Asia-Pacific Conference on FRP in Structures (APFIS 2007) S.T. Smith (ed) 2007 International Institute for FRP in Construction FLEXURAL RESPONSE OF FIBER RENFORCED PLASTIC DECKS USING HIGHER-ORDER SHEAR

More information

Dynamic Response Of Laminated Composite Shells Subjected To Impulsive Loads

Dynamic Response Of Laminated Composite Shells Subjected To Impulsive Loads IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-issn: 2278-1684,p-ISSN: 2320-334X, Volume 14, Issue 3 Ver. I (May. - June. 2017), PP 108-123 www.iosrjournals.org Dynamic Response Of Laminated

More information

Dynamic analysis of Composite Micro Air Vehicles

Dynamic analysis of Composite Micro Air Vehicles Dynamic analysis of Composite Micro Air Vehicles Shishir Kr. Sahu Professor and Head, Civil Engineering, National Institute of Technology, Rourkela, India E-mail: sksahu@nitrkl.ac.in ABSTRACT The present

More information

TABLE OF CONTENTS. Mechanics of Composite Materials, Second Edition Autar K Kaw University of South Florida, Tampa, USA

TABLE OF CONTENTS. Mechanics of Composite Materials, Second Edition Autar K Kaw University of South Florida, Tampa, USA Mechanics of Composite Materials, Second Edition Autar K Kaw University of South Florida, Tampa, USA TABLE OF CONTENTS 1. INTRODUCTION TO COMPOSITE MATERIALS 1.1 Introduction... 1.2 Classification... 1.2.1

More information

Nonlinear bending analysis of laminated composite stiffened plates

Nonlinear bending analysis of laminated composite stiffened plates Nonlinear bending analysis of laminated composite stiffened plates * S.N.Patel 1) 1) Dept. of Civi Engineering, BITS Pilani, Pilani Campus, Pilani-333031, (Raj), India 1) shuvendu@pilani.bits-pilani.ac.in

More information

VIBRATION ANALYSIS OF SYMMETRIC LAMINATED COMPOSITE PLATE WITH FULLY CLAMPED BOUNDARY CONDITION

VIBRATION ANALYSIS OF SYMMETRIC LAMINATED COMPOSITE PLATE WITH FULLY CLAMPED BOUNDARY CONDITION 1 VIBRATION ANALYSIS OF SYMMETRIC LAMINATED COMPOSITE PLATE WITH FULLY CLAMPED BOUNDARY CONDITION Vimal Kumar Tiwari 1, Manindra Kumar Singh 2 Kirti Chandraul 3 1 Research scholar Department of Civil Engineering

More information

Bending Analysis of Symmetrically Laminated Plates

Bending Analysis of Symmetrically Laminated Plates Leonardo Journal of Sciences ISSN 1583-0233 Issue 16, January-June 2010 p. 105-116 Bending Analysis of Symmetrically Laminated Plates Bouazza MOKHTAR 1, Hammadi FODIL 2 and Khadir MOSTAPHA 2 1 Department

More information

Free Vibration Response of a Multilayer Smart Hybrid Composite Plate with Embedded SMA Wires

Free Vibration Response of a Multilayer Smart Hybrid Composite Plate with Embedded SMA Wires 11(2014) 279-298 Free Vibration Response of a Multilayer Smart Hybrid Composite Plate with Embedded SMA Wires Abstract In this paper, free vibration response of a hybrid composite plate was studied. Effects

More information

A HIGHER-ORDER BEAM THEORY FOR COMPOSITE BOX BEAMS

A HIGHER-ORDER BEAM THEORY FOR COMPOSITE BOX BEAMS A HIGHER-ORDER BEAM THEORY FOR COMPOSITE BOX BEAMS A. Kroker, W. Becker TU Darmstadt, Department of Mechanical Engineering, Chair of Structural Mechanics Hochschulstr. 1, D-64289 Darmstadt, Germany kroker@mechanik.tu-darmstadt.de,

More information

Analysis of laminated composite skew shells using higher order shear deformation theory

Analysis of laminated composite skew shells using higher order shear deformation theory 10(2013) 891 919 Analysis of laminated composite skew shells using higher order shear deformation theory Abstract Static analysis of skew composite shells is presented by developing a C 0 finite element

More information

JEPPIAAR ENGINEERING COLLEGE

JEPPIAAR ENGINEERING COLLEGE JEPPIAAR ENGINEERING COLLEGE Jeppiaar Nagar, Rajiv Gandhi Salai 600 119 DEPARTMENT OFMECHANICAL ENGINEERING QUESTION BANK VI SEMESTER ME6603 FINITE ELEMENT ANALYSIS Regulation 013 SUBJECT YEAR /SEM: III

More information

Thermal buckling and post-buckling of laminated composite plates with. temperature dependent properties by an asymptotic numerical method

Thermal buckling and post-buckling of laminated composite plates with. temperature dependent properties by an asymptotic numerical method hermal buckling and post-buckling of laminated composite plates with temperature dependent properties by an asymptotic numerical method F. Abdoun a,*, L. Azrar a,b, E.M. Daya c a LAMA, Higher School of

More information

Application of Laplace Iteration method to Study of Nonlinear Vibration of laminated composite plates

Application of Laplace Iteration method to Study of Nonlinear Vibration of laminated composite plates (3) 78 795 Application of Laplace Iteration method to Study of Nonlinear Vibration of laminated composite plates Abstract In this paper, free vibration characteristics of laminated composite plates are

More information

International Journal of Advanced Engineering Technology E-ISSN

International Journal of Advanced Engineering Technology E-ISSN Research Article INTEGRATED FORCE METHOD FOR FIBER REINFORCED COMPOSITE PLATE BENDING PROBLEMS Doiphode G. S., Patodi S. C.* Address for Correspondence Assistant Professor, Applied Mechanics Department,

More information

Composite Structural Mechanics using MATLAB

Composite Structural Mechanics using MATLAB Session 2520 Composite Structural Mechanics using MATLAB Oscar Barton, Jr., Jacob B. Wallace United States Naval Academy Annapolis, Md 21402 Abstract In this paper MATLAB is adopted as the programming

More information

Hygrothermal stresses in laminates

Hygrothermal stresses in laminates Hygrothermal stresses in laminates Changing environment conditions (temperature and moisture) have an important effect on the properties which are matrix dominated. Change in temperaturet and moisture

More information

Thermal buckling analysis of shear deformable laminated orthotropic plates by differential quadrature

Thermal buckling analysis of shear deformable laminated orthotropic plates by differential quadrature Steel and Composite Structures, Vol. 12, No. 2 (2012) 129-147 129 hermal buckling analysis of shear deformable laminated orthotropic plates by differential quadrature S. Moradi 1 and Mohammad Hassan Mansouri

More information

Dynamic Stability of Delaminated Cross ply Composite Plates and Shells

Dynamic Stability of Delaminated Cross ply Composite Plates and Shells Dynamic Stability of Delaminated Cross ply Composite Plates and Shells A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Master of Technology In Structural Engineering By

More information

CHAPTER 14 BUCKLING ANALYSIS OF 1D AND 2D STRUCTURES

CHAPTER 14 BUCKLING ANALYSIS OF 1D AND 2D STRUCTURES CHAPTER 14 BUCKLING ANALYSIS OF 1D AND 2D STRUCTURES 14.1 GENERAL REMARKS In structures where dominant loading is usually static, the most common cause of the collapse is a buckling failure. Buckling may

More information

Stability Analysis of Variable Stiffness Composite Laminated Plates with Delamination Using Spline-FSM

Stability Analysis of Variable Stiffness Composite Laminated Plates with Delamination Using Spline-FSM 528 Stability Analysis of Variable Stiffness Composite Laminated Plates with Delamination Using Spline-FSM Abstract The dynamic behavior of variable stiffness composite laminated (VSCL) plate with curvilinear

More information

Bending of Simply Supported Isotropic and Composite Laminate Plates

Bending of Simply Supported Isotropic and Composite Laminate Plates Bending of Simply Supported Isotropic and Composite Laminate Plates Ernesto Gutierrez-Miravete 1 Isotropic Plates Consider simply a supported rectangular plate of isotropic material (length a, width b,

More information

COMPARISON OF PLATE MODELS FOR ANALYSIS OF LAMINATED COMPOSITES

COMPARISON OF PLATE MODELS FOR ANALYSIS OF LAMINATED COMPOSITES COMPARISON OF PLATE MODELS FOR ANALYSIS OF LAMINATED COMPOSITES P. M. Mohite and C. S. Upadhyay** Department of Aerospace Engineering, IIT Kanpur 0806, INDIA, e-mail: mohite@iitk.ac.in Assistant Professor,

More information

Transient dynamic response of delaminated composite rotating shallow shells subjected to impact

Transient dynamic response of delaminated composite rotating shallow shells subjected to impact Shock and Vibration 13 (2006) 619 628 619 IOS Press Transient dynamic response of delaminated composite rotating shallow shells subjected to impact Amit Karmakar a, and Kikuo Kishimoto b a Mechanical Engineering

More information

COMPOSITE PLATE THEORIES

COMPOSITE PLATE THEORIES CHAPTER2 COMPOSITE PLATE THEORIES 2.1 GENERAL Analysis of composite plates is usually done based on one of the following the ries. 1. Equivalent single-layer theories a. Classical laminate theory b. Shear

More information

Dynamic Stability of Laminated Composite Plates with an External Smart Damper

Dynamic Stability of Laminated Composite Plates with an External Smart Damper Journal of Solid Mechanics Vol. 8, No. 1 (2016) pp. 45-57 Dynamic Stability of Laminated Composite Plates with an External Smart Damper M. Hoseinzadeh, J. Rezaeepazhand * Department of Mechanical Engineering,

More information

Module 5: Laminate Theory Lecture 19: Hygro -thermal Laminate Theory. Introduction: The Lecture Contains: Laminate Theory with Thermal Effects

Module 5: Laminate Theory Lecture 19: Hygro -thermal Laminate Theory. Introduction: The Lecture Contains: Laminate Theory with Thermal Effects Module 5: Laminate Theory Lecture 19: Hygro -thermal Laminate Theory Introduction: In this lecture we are going to develop the laminate theory with thermal and hygral effects. Then we will develop the

More information

Effect of Specimen Dimensions on Flexural Modulus in a 3-Point Bending Test

Effect of Specimen Dimensions on Flexural Modulus in a 3-Point Bending Test Effect of Specimen Dimensions on Flexural Modulus in a 3-Point Bending Test M. Praveen Kumar 1 and V. Balakrishna Murthy 2* 1 Mechanical Engineering Department, P.V.P. Siddhartha Institute of Technology,

More information

AEROELASTIC ANALYSIS OF SPHERICAL SHELLS

AEROELASTIC ANALYSIS OF SPHERICAL SHELLS 11th World Congress on Computational Mechanics (WCCM XI) 5th European Conference on Computational Mechanics (ECCM V) 6th European Conference on Computational Fluid Dynamics (ECFD VI) E. Oñate, J. Oliver

More information

ME 1401 FINITE ELEMENT ANALYSIS UNIT I PART -A. 2. Why polynomial type of interpolation functions is mostly used in FEM?

ME 1401 FINITE ELEMENT ANALYSIS UNIT I PART -A. 2. Why polynomial type of interpolation functions is mostly used in FEM? SHRI ANGALAMMAN COLLEGE OF ENGINEERING AND TECHNOLOGY (An ISO 9001:2008 Certified Institution) SIRUGANOOR, TIRUCHIRAPPALLI 621 105 Department of Mechanical Engineering ME 1401 FINITE ELEMENT ANALYSIS 1.

More information

A RESEARCH ON NONLINEAR STABILITY AND FAILURE OF THIN- WALLED COMPOSITE COLUMNS WITH OPEN CROSS-SECTION

A RESEARCH ON NONLINEAR STABILITY AND FAILURE OF THIN- WALLED COMPOSITE COLUMNS WITH OPEN CROSS-SECTION A RESEARCH ON NONLINEAR STABILITY AND FAILURE OF THIN- WALLED COMPOSITE COLUMNS WITH OPEN CROSS-SECTION H. Debski a*, J. Bienias b, P. Jakubczak b a Faculty of Mechanical Engineering, Department of Machine

More information

1 Introduction. Keywords: stiffened hypar shell; cutout; antisymmetric angle ply composite; finite element method

1 Introduction. Keywords: stiffened hypar shell; cutout; antisymmetric angle ply composite; finite element method Curved and Layer. Struct. 2016; (3) 1:22 46 Research Article Open Access Puja B. Chowdhury, Anirban Mitra, and Sarmila Sahoo* Relative performance of antisymmetric angle-ply laminated stiffened hypar shell

More information

VIBRATION CONTROL OF RECTANGULAR CROSS-PLY FRP PLATES USING PZT MATERIALS

VIBRATION CONTROL OF RECTANGULAR CROSS-PLY FRP PLATES USING PZT MATERIALS Journal of Engineering Science and Technology Vol. 12, No. 12 (217) 3398-3411 School of Engineering, Taylor s University VIBRATION CONTROL OF RECTANGULAR CROSS-PLY FRP PLATES USING PZT MATERIALS DILEEP

More information

Module 5: Laminate Theory Lecture 17: Laminate Constitutive Relations. The Lecture Contains: Laminate Constitutive Relations

Module 5: Laminate Theory Lecture 17: Laminate Constitutive Relations. The Lecture Contains: Laminate Constitutive Relations Lecture 17: Laminate Constitutive Relations The Lecture Contains: Laminate Constitutive Relations Classification of Laminates Cross-Ply Laminates Specially Orthotropic Laminates Examples Homework References

More information

EFFECT OF LAMINATION ANGLE AND THICKNESS ON ANALYSIS OF COMPOSITE PLATE UNDER THERMO MECHANICAL LOADING

EFFECT OF LAMINATION ANGLE AND THICKNESS ON ANALYSIS OF COMPOSITE PLATE UNDER THERMO MECHANICAL LOADING Journal of MECHANICAL ENGINEERING Strojnícky časopis, VOL 67 (217), NO 1, 5-22 EFFECT OF LAMINATION ANGLE AND THICKNESS ON ANALYSIS OF COMPOSITE PLATE UNDER THERMO MECHANICAL LOADING Arnab Choudhury 1,

More information

Piezoelectric Control of Multi-functional Composite Shells Subjected to an Electromagnetic Field

Piezoelectric Control of Multi-functional Composite Shells Subjected to an Electromagnetic Field Piezoelectric Control of Multi-functional Composite Shells Subjected to an Electromagnetic Field *Sang-Yun Park 1) and Ohseop Song 2) 1), 2) Department of Mechanical Engineering, Chungnam National University,

More information

KINK BAND FORMATION OF FIBER REINFORCED POLYMER (FRP)

KINK BAND FORMATION OF FIBER REINFORCED POLYMER (FRP) KINK BAND FORMATION OF FIBER REINFORCED POLYMER (FRP) 1 University of Science & Technology Beijing, China, niukm@ustb.edu.cn 2 Tsinghua University, Department of Engineering Mechanics, Beijing, China,

More information

FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS

FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS Ever J. Barbero Department of Mechanical and Aerospace Engineering West Virginia University USA CRC Press Taylor &.Francis Group Boca Raton London New York

More information

Chapter 2: Rigid Bar Supported by Two Buckled Struts under Axial, Harmonic, Displacement Excitation..14

Chapter 2: Rigid Bar Supported by Two Buckled Struts under Axial, Harmonic, Displacement Excitation..14 Table of Contents Chapter 1: Research Objectives and Literature Review..1 1.1 Introduction...1 1.2 Literature Review......3 1.2.1 Describing Vibration......3 1.2.2 Vibration Isolation.....6 1.2.2.1 Overview.

More information

VIBRATION AND DAMPING ANALYSIS OF FIBER REINFORCED COMPOSITE MATERIAL CONICAL SHELLS

VIBRATION AND DAMPING ANALYSIS OF FIBER REINFORCED COMPOSITE MATERIAL CONICAL SHELLS VIBRATION AND DAMPING ANALYSIS OF FIBER REINFORCED COMPOSITE MATERIAL CONICAL SHELLS Mechanical Engineering Department, Indian Institute of Technology, New Delhi 110 016, India (Received 22 January 1992,

More information

IV B.Tech. I Semester Supplementary Examinations, February/March FINITE ELEMENT METHODS (Mechanical Engineering) Time: 3 Hours Max Marks: 80

IV B.Tech. I Semester Supplementary Examinations, February/March FINITE ELEMENT METHODS (Mechanical Engineering) Time: 3 Hours Max Marks: 80 www..com www..com Code No: M0322/R07 Set No. 1 IV B.Tech. I Semester Supplementary Examinations, February/March - 2011 FINITE ELEMENT METHODS (Mechanical Engineering) Time: 3 Hours Max Marks: 80 Answer

More information

Research Article Behaviour and Optimization Aids of Composite Stiffened Hypar Shell Roofs with Cutout under Free Vibration

Research Article Behaviour and Optimization Aids of Composite Stiffened Hypar Shell Roofs with Cutout under Free Vibration International Scholarly Research Network ISRN Civil Engineering Volume 2012, Article ID 989785, 14 pages doi:10.5402/2012/989785 Research Article Behaviour and Optimization Aids of Composite Stiffened

More information

Effect of Thermal Stresses on the Failure Criteria of Fiber Composites

Effect of Thermal Stresses on the Failure Criteria of Fiber Composites Effect of Thermal Stresses on the Failure Criteria of Fiber Composites Martin Leong * Institute of Mechanical Engineering Aalborg University, Aalborg, Denmark Bhavani V. Sankar Department of Mechanical

More information

Effect of skew angle on free vibration responses of sandwich composite plate

Effect of skew angle on free vibration responses of sandwich composite plate Effect of skew angle on free vibration responses of sandwich composite plate 1 Pankaj Katariya, 2* Subrata Kumar Panda, 3 Trupti Ranjan Mahapatra ( 1 Research scholar, Department of Mechanical Engineering,

More information

International Journal of Modern Trends in Engineering and Research e-issn No.: , Date: 2-4 July, 2015

International Journal of Modern Trends in Engineering and Research   e-issn No.: , Date: 2-4 July, 2015 International Journal of Modern Trends in Engineering and Research www.ijmter.com e-issn No.:249-9745, Date: 2-4 July, 215 Thermal Post buckling Analysis of Functionally Graded Materials Cylindrical Shell

More information

Vibration Analysis of Composite Beam

Vibration Analysis of Composite Beam Vibration Analysis of Composite Beam A Thesis Submitted in Partial Fulfilment of the Requirements for the Award of the Degree of Master of Technology in Machine Design and Analysis by Hemanshu 11ME1154

More information

arxiv: v1 [math.na] 20 Jun 2013

arxiv: v1 [math.na] 20 Jun 2013 Hygrothermal effects on free vibration and buckling of laminated composites with cutouts Sundararajan Natarajan 1,a, and Pratik S Deogekar 2,b 1 School of Civil & Environmental Engineering, The University

More information

HIGHER-ORDER THEORIES

HIGHER-ORDER THEORIES HIGHER-ORDER THEORIES THIRD-ORDER SHEAR DEFORMATION PLATE THEORY LAYERWISE LAMINATE THEORY J.N. Reddy 1 Third-Order Shear Deformation Plate Theory Assumed Displacement Field µ u(x y z t) u 0 (x y t) +

More information

Free Vibration Analysis of Twisted Functionally Graded Material Plates

Free Vibration Analysis of Twisted Functionally Graded Material Plates Free Vibration Analysis of Twisted Functionally Graded Material Plates Thesis submitted in partial fulfillment of the requirements for the degree of Master of Technology in Civil Engineering (Specialization:

More information

QUESTION BANK Composite Materials

QUESTION BANK Composite Materials QUESTION BANK Composite Materials 1. Define composite material. 2. What is the need for composite material? 3. Mention important characterits of composite material 4. Give examples for fiber material 5.

More information

COPYRIGHTED MATERIAL. Index

COPYRIGHTED MATERIAL. Index Index A Admissible function, 163 Amplification factor, 36 Amplitude, 1, 22 Amplitude-modulated carrier, 630 Amplitude ratio, 36 Antinodes, 612 Approximate analytical methods, 647 Assumed modes method,

More information

ISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 4, July 2013

ISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 4, July 2013 Delamination Studies in Fibre-Reinforced Polymer Composites K.Kantha Rao, Dr P. Shailesh, K. Vijay Kumar 1 Associate Professor, Narasimha Reddy Engineering College Hyderabad. 2 Professor, St. Peter s Engineering

More information

Effect Of Multiple Delamination on Composite Turbine Blade Subjected to Low Velocity Impact

Effect Of Multiple Delamination on Composite Turbine Blade Subjected to Low Velocity Impact Effect Of Multiple Delamination on Composite Turbine Blade Subjected to Low Velocity Impact Sudip Dey* Mechanical Engineering Department, Jadavpur University Kolkata 700032, INDIA * E-mail of corresponding

More information

Static & Dynamic. Analysis of Structures. Edward L.Wilson. University of California, Berkeley. Fourth Edition. Professor Emeritus of Civil Engineering

Static & Dynamic. Analysis of Structures. Edward L.Wilson. University of California, Berkeley. Fourth Edition. Professor Emeritus of Civil Engineering Static & Dynamic Analysis of Structures A Physical Approach With Emphasis on Earthquake Engineering Edward LWilson Professor Emeritus of Civil Engineering University of California, Berkeley Fourth Edition

More information

Passive Damping Characteristics of Carbon Epoxy Composite Plates

Passive Damping Characteristics of Carbon Epoxy Composite Plates Journal of Materials Science and Engineering A 6 (-) 35-4 doi:.765/6-63/6.-.5 D DAVID PUBLISHING Passive Damping Characteristics of Carbon Epoxy Composite Plates Dileep Kumar K * and V V Subba Rao Faculty

More information

PREDICTION OF BUCKLING AND POSTBUCKLING BEHAVIOUR OF COMPOSITE SHIP PANELS

PREDICTION OF BUCKLING AND POSTBUCKLING BEHAVIOUR OF COMPOSITE SHIP PANELS FONDATĂ 1976 THE ANNALS OF DUNAREA DE JOS UNIVERSITY OF GALATI. FASCICLE IX. METALLURGY AND MATERIALS SCIENCE N 0. 007, ISSN 15 08X PREDICTION OF BUCKLING AND POSTBUCKLING BEHAVIOUR OF COMPOSITE SHIP PANELS

More information

Passive Damping Characteristics of Carbon Epoxy Composite Plates

Passive Damping Characteristics of Carbon Epoxy Composite Plates Journal of aterials Science and Engineering A 6 (1-2) (2016) 35-42 doi: 10.17265/2161-6213/2016.1-2.005 D DAVID PUBLISHIG Passive Damping Characteristics of Carbon Epoxy Composite Plates Dileep Kumar K

More information

UNIT- I Thin plate theory, Structural Instability:

UNIT- I Thin plate theory, Structural Instability: UNIT- I Thin plate theory, Structural Instability: Analysis of thin rectangular plates subject to bending, twisting, distributed transverse load, combined bending and in-plane loading Thin plates having

More information

HIGHER-ORDER THEORIES

HIGHER-ORDER THEORIES HIGHER-ORDER THEORIES Third-order Shear Deformation Plate Theory Displacement and strain fields Equations of motion Navier s solution for bending Layerwise Laminate Theory Interlaminar stress and strain

More information

BHAR AT HID AS AN ENGIN E ERI N G C O L L E G E NATTR A MPA LL I

BHAR AT HID AS AN ENGIN E ERI N G C O L L E G E NATTR A MPA LL I BHAR AT HID AS AN ENGIN E ERI N G C O L L E G E NATTR A MPA LL I 635 8 54. Third Year M E C H A NICAL VI S E M ES TER QUE S T I ON B ANK Subject: ME 6 603 FIN I T E E LE ME N T A N A L YSIS UNI T - I INTRODUCTION

More information

Finite Element Method in Geotechnical Engineering

Finite Element Method in Geotechnical Engineering Finite Element Method in Geotechnical Engineering Short Course on + Dynamics Boulder, Colorado January 5-8, 2004 Stein Sture Professor of Civil Engineering University of Colorado at Boulder Contents Steps

More information

Analysis of Non-Rectangular Laminated Anisotropic Plates by Chebyshev Collocation Method

Analysis of Non-Rectangular Laminated Anisotropic Plates by Chebyshev Collocation Method 146 Analysis of Non-Rectangular Laminated Anisotropic Plates by Chebyshev Collocation Method Chih-Hsun LIN and Ming-Hwa R. JEN The purpose of this work is to solve the governing differential equations

More information

Generic Strategies to Implement Material Grading in Finite Element Methods for Isotropic and Anisotropic Materials

Generic Strategies to Implement Material Grading in Finite Element Methods for Isotropic and Anisotropic Materials University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Engineering Mechanics Dissertations & Theses Mechanical & Materials Engineering, Department of Winter 12-9-2011 Generic

More information

Code No: RT41033 R13 Set No. 1 IV B.Tech I Semester Regular Examinations, November - 2016 FINITE ELEMENT METHODS (Common to Mechanical Engineering, Aeronautical Engineering and Automobile Engineering)

More information

Comparison of Ply-wise Stress-Strain results for graphite/epoxy laminated plate subjected to in-plane normal loads using CLT and ANSYS ACP PrepPost

Comparison of Ply-wise Stress-Strain results for graphite/epoxy laminated plate subjected to in-plane normal loads using CLT and ANSYS ACP PrepPost Comparison of Ply-wise Stress-Strain results for graphite/epoxy laminated plate subjected to in-plane normal loads using CLT and ANSYS ACP PrepPost 1 Mihir A. Mehta, 2 Satyen D. Ramani 1 PG Student, Department

More information

Finite Element Analysis of Composite Laminate By Using ABDH Matrix(Stiffness Matrix)

Finite Element Analysis of Composite Laminate By Using ABDH Matrix(Stiffness Matrix) Finite Element Analysis of Composite Laminate By Using ABDH Matrix(Stiffness Matrix) Nikhil J. Chaudhari 1 Post Graduate Student Department of Mechanical Engineering Veermata Jijabai Technological Institute

More information

Design and optimization of a variable stiffness composite laminate

Design and optimization of a variable stiffness composite laminate th World Congress on Structural and Multidisciplinary Optimisation 07 th - th, June 05, Sydney Australia Design and optimization of a variable stiffness composite laminate Yan Zhang, Fenfen Xiong Qian

More information

Free Vibration Analysis of Functionally Graded Material Plates with Various Types of Cutouts using Finite Element Method

Free Vibration Analysis of Functionally Graded Material Plates with Various Types of Cutouts using Finite Element Method International Journal of Current Engineering and Technology E-ISSN 2277 4106, P-ISSN 2347 5161 2018 INPRESSCO, All Rights Reserved Available at http://inpressco.com/category/ijcet Research Article Free

More information

Using MATLAB and. Abaqus. Finite Element Analysis. Introduction to. Amar Khennane. Taylor & Francis Croup. Taylor & Francis Croup,

Using MATLAB and. Abaqus. Finite Element Analysis. Introduction to. Amar Khennane. Taylor & Francis Croup. Taylor & Francis Croup, Introduction to Finite Element Analysis Using MATLAB and Abaqus Amar Khennane Taylor & Francis Croup Boca Raton London New York CRC Press is an imprint of the Taylor & Francis Croup, an informa business

More information

BI-STABLE COMPOSITE SHELLS

BI-STABLE COMPOSITE SHELLS AIAA 2-1385 BI-STABLE COMPOSITE SHELLS K. Iqbal and S. Pellegrino Department of Engineering, University of Cambridge, Trumpington Street, Cambridge, CB2 1PZ, U.K. Abstract This paper is concerned with

More information

ME 582 Advanced Materials Science. Chapter 2 Macromechanical Analysis of a Lamina (Part 2)

ME 582 Advanced Materials Science. Chapter 2 Macromechanical Analysis of a Lamina (Part 2) ME 582 Advanced Materials Science Chapter 2 Macromechanical Analysis of a Lamina (Part 2) Laboratory for Composite Materials Research Department of Mechanical Engineering University of South Alabama, Mobile,

More information

ME FINITE ELEMENT ANALYSIS FORMULAS

ME FINITE ELEMENT ANALYSIS FORMULAS ME 2353 - FINITE ELEMENT ANALYSIS FORMULAS UNIT I FINITE ELEMENT FORMULATION OF BOUNDARY VALUE PROBLEMS 01. Global Equation for Force Vector, {F} = [K] {u} {F} = Global Force Vector [K] = Global Stiffness

More information

Large amplitude free exural vibrations of laminated composite skew plates

Large amplitude free exural vibrations of laminated composite skew plates International Journal of Non-Linear Mechanics 39 (2004) 1709 1720 Large amplitude free exural vibrations of laminated composite skew plates Maloy K. Singha, M. Ganapathi Engineering Analysis Center of

More information

Parametric study on the transverse and longitudinal moments of trough type folded plate roofs using ANSYS

Parametric study on the transverse and longitudinal moments of trough type folded plate roofs using ANSYS American Journal of Engineering Research (AJER) e-issn : 2320-0847 p-issn : 2320-0936 Volume-4 pp-22-28 www.ajer.org Research Paper Open Access Parametric study on the transverse and longitudinal moments

More information

Comparison of LS-DYNA and NISA in Solving Dynamic Pulse Buckling Problems in Laminated Composite Beams

Comparison of LS-DYNA and NISA in Solving Dynamic Pulse Buckling Problems in Laminated Composite Beams 9 th International LS-DYNA Users Conference Simulation Technology (1) Comparison of LS-DYNA and NISA in Solving Dynamic Pulse Buckling Problems in Laminated Composite Beams Haipeng Han and Farid Taheri

More information

Frequency Response of Composite Laminates at Various Boundary Conditions

Frequency Response of Composite Laminates at Various Boundary Conditions International Journal of Engineering Science Invention (IJESI) ISSN (Online): 2319 6734, ISSN (Print): 2319 6726 www.ijesi.org ǁ PP.11-15 Frequency Response of Composite Laminates at Various Boundary Conditions

More information

Materials and Structures. Indian Institute of Technology Kanpur

Materials and Structures. Indian Institute of Technology Kanpur Introduction to Composite Materials and Structures Nachiketa Tiwari Indian Institute of Technology Kanpur Lecture 36 Hygrothermal Stresses in Plates Lecture Overview Introduction Hygrothermal Strains Stiffness

More information

Free Vibration Analysis of the Laminated Composite Beam with Various Boundary Conditions

Free Vibration Analysis of the Laminated Composite Beam with Various Boundary Conditions Free Vibration Analysis of the Laminated Composite Beam with Various Boundary Conditions A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF Master of Technology In Machine Design

More information

2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates

2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates 2766. Differential quadrature method (DQM) for studying initial imperfection effects and pre- and post-buckling vibration of plates Hesam Makvandi 1, Shapour Moradi 2, Davood Poorveis 3, Kourosh Heidari

More information

ANALYTICAL SOLUTIONS USING HIGH ORDER COMPOSITE LAMINATE THEORY FOR HONEYCOMB SANDWICH PLATES WITH VISCOELASTIC FREQUENCY DEPENDENT DAMPING

ANALYTICAL SOLUTIONS USING HIGH ORDER COMPOSITE LAMINATE THEORY FOR HONEYCOMB SANDWICH PLATES WITH VISCOELASTIC FREQUENCY DEPENDENT DAMPING Clemson University TigerPrints All Theses Theses 8-11 ANALYTICAL SOLUTIONS USING HIGH ORDER COMPOSITE LAMINATE THEORY FOR HONEYCOMB SANDWICH PLATES WITH VISCOELASTIC FREQUENCY DEPENDENT DAMPING Nan Shan

More information

LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL

LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL LINEAR AND NONLINEAR BUCKLING ANALYSIS OF STIFFENED CYLINDRICAL SUBMARINE HULL SREELATHA P.R * M.Tech. Student, Computer Aided Structural Engineering, M A College of Engineering, Kothamangalam 686 666,

More information

Hybrid-interface finite element for laminated composite and sandwich beams

Hybrid-interface finite element for laminated composite and sandwich beams Hybrid-interface finite element for laminated composite and sandwich beams A.N. Bambole, Y.M. Desai Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India

More information

Laminated Composite Plates and Shells

Laminated Composite Plates and Shells Jianqiao Ye Laminated Composite Plates and Shells 3D Modelling With 62 Figures Springer Table of Contents 1. Introduction to Composite Materials 1 1.1 Introduction 1 1.2 Classification of Composite Materials

More information

Strength Prediction Of Composite Laminate

Strength Prediction Of Composite Laminate Strength Prediction Of Composite te Prof. Yogananda. A 1, Mr. R. Vijayakumar 2 Assistant Professor, Department of Mechanical Engineering, East West Institute of Technology, Bangalore. Research Scholar,

More information

GEOMETRIC NONLINEAR ANALYSIS

GEOMETRIC NONLINEAR ANALYSIS GEOMETRIC NONLINEAR ANALYSIS The approach for solving problems with geometric nonlinearity is presented. The ESAComp solution relies on Elmer open-source computational tool [1] for multiphysics problems.

More information

Finite Element Analysis of Graphite/Epoxy Composite Pressure Vessel

Finite Element Analysis of Graphite/Epoxy Composite Pressure Vessel Journal of Materials Science and Chemical Engineering, 2017, 5, 19-28 http://www.scirp.org/journal/msce ISSN Online: 2327-6053 ISSN Print: 2327-6045 Finite Element Analysis of Graphite/Epoxy Composite

More information

Module III - Macro-mechanics of Lamina. Lecture 23. Macro-Mechanics of Lamina

Module III - Macro-mechanics of Lamina. Lecture 23. Macro-Mechanics of Lamina Module III - Macro-mechanics of Lamina Lecture 23 Macro-Mechanics of Lamina For better understanding of the macromechanics of lamina, the knowledge of the material properties in essential. Therefore, the

More information

Nonlinear Modeling of Fiber-Reinforced Elastomers and the Response of a Rubber Muscle Actuator

Nonlinear Modeling of Fiber-Reinforced Elastomers and the Response of a Rubber Muscle Actuator Nonlinear Modeling of Fiber-Reinforced Elastomers and the Response of a Rubber Muscle Actuator Larry D. Peel, Ph.D.* Department of Mechanical & Industrial Engineering Texas A&M Univ. - Kingsville David

More information

Stability of Simply Supported Square Plate with Concentric Cutout

Stability of Simply Supported Square Plate with Concentric Cutout International OPEN ACCESS Journal Of Modern Engineering Research (IJMER) Stability of Simply Supported Square Plate with Concentric Cutout Jayashankarbabu B. S. 1, Dr. Karisiddappa 1 (Civil Engineering

More information

1653. Effect of cut-out on modal properties of edge cracked temperature-dependent functionally graded plates

1653. Effect of cut-out on modal properties of edge cracked temperature-dependent functionally graded plates 1653. Effect of cut-out on modal properties of edge cracked temperature-dependent functionally graded plates A. Shahrjerdi 1, T. Ezzati 2 1 Department of Mechanical Engineering, Malayer University, Malayer

More information

Vibration and Buckling of Composite Twisted Panels Subjected to Hygrothermal Environment

Vibration and Buckling of Composite Twisted Panels Subjected to Hygrothermal Environment Vibration and Buckling of Composite Twisted Panels Subjected to Hygrothermal Environment THESIS SUBMITTED IN PRTIL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MSTER OF TECHNOLOGY IN CIVIL ENGINEERING

More information

Esben Byskov. Elementary Continuum. Mechanics for Everyone. With Applications to Structural Mechanics. Springer

Esben Byskov. Elementary Continuum. Mechanics for Everyone. With Applications to Structural Mechanics. Springer Esben Byskov Elementary Continuum Mechanics for Everyone With Applications to Structural Mechanics Springer Contents Preface v Contents ix Introduction What Is Continuum Mechanics? "I Need Continuum Mechanics

More information

FREE VIBRATION OF AXIALLY LOADED FUNCTIONALLY GRADED SANDWICH BEAMS USING REFINED SHEAR DEFORMATION THEORY

FREE VIBRATION OF AXIALLY LOADED FUNCTIONALLY GRADED SANDWICH BEAMS USING REFINED SHEAR DEFORMATION THEORY FREE VIBRATION OF AXIALLY LOADED FUNCTIONALLY GRADED SANDWICH BEAMS USING REFINED SHEAR DEFORMATION THEORY Thuc P. Vo 1, Adelaja Israel Osofero 1, Marco Corradi 1, Fawad Inam 1 1 Faculty of Engineering

More information

Some Aspects Of Dynamic Buckling of Plates Under In Plane Pulse Loading

Some Aspects Of Dynamic Buckling of Plates Under In Plane Pulse Loading Mechanics and Mechanical Engineering Vol. 12, No. 2 (2008) 135 146 c Technical University of Lodz Some Aspects Of Dynamic Buckling of Plates Under In Plane Pulse Loading Katarzyna Kowal Michalska, Rados

More information

Numerical Stability Analysis of Composite Plates Thermally Stiffened by Finite Element Method

Numerical Stability Analysis of Composite Plates Thermally Stiffened by Finite Element Method Proceedings of COBE 005 Copyright 005 by ABC 8th International Congress of echanical Engineering ovember 6-, 005, Ouro Preto, G umerical Stability Analysis of Composite Plates hermally Stiffened by Finite

More information

Module 7: Micromechanics Lecture 25: Strength of Materials Approach. Introduction. The Lecture Contains. Effective Transverse Modulus

Module 7: Micromechanics Lecture 25: Strength of Materials Approach. Introduction. The Lecture Contains. Effective Transverse Modulus Introduction In the previous lecture we have introduced the concept of Representative Volume Element or Unit Cell. This is the basic building block in a micromechanical study. Further, we explained the

More information

COMPRESSIVE BEHAVIOR OF IMPACT DAMAGED COMPOSITE LAMINATES

COMPRESSIVE BEHAVIOR OF IMPACT DAMAGED COMPOSITE LAMINATES 16 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS COMPRESSIVE BEHAVIOR OF IMPACT DAMAGED COMPOSITE LAMINATES Hiroshi Suemasu*, Wataru Sasaki**, Yuuichiro Aoki***, Takashi Ishikawa**** *Department of

More information