EXPERIMENTAL AND NUMERICAL STUDY OF THE ENERGY ABSORPTION CAPACITY OF PULTRUDED COMPOSITE TUBES

Save this PDF as:

Size: px
Start display at page:

Download "EXPERIMENTAL AND NUMERICAL STUDY OF THE ENERGY ABSORPTION CAPACITY OF PULTRUDED COMPOSITE TUBES"

Transcription

3 Figure 2: a, b. circular tube with triggering type 1 of 45 o and type 2 of 60 o. c, d. square tube with triggering type 1 of 45 o and type 2 of 20 o. For the experiments a 100KN INSTRON 4505 was used. The velocity of the compression test was 200mm/min. Force versus displacement was measured and the specific energy absorption was calculated from the formula: E S = Ed ρl S = LS FdL ρl S 0 J kg Where Ed is the dissipated energy, Ls is the deformation length, F is the force and ρ is the linear density of the tube. The specific energy was calculated for 50 mm crushing. 3. NUMERICAL MODELLING The LS-DYNA [10] code was used in conducting all the simulations. For all the models shell elements were used, simulating the different types of triggering. The Belyschko Tsay quadrilateral element was used to model the tubes. The meshed shell elements were located at the mid-plane of each tube and in case of triggering 1 for all the models the top edge of the tube had an angle of 45 o in order to simulate the initiation of the damage Material Model The material model 54 of LS-DYNA was selected to model both the tubes. Material model 54 has the option of using either the Tsai Wu failure or the Chang Chang failure criterion for assessing lamina failure. The Chang Chang criterion is the modification of the Hashin s failure criterion [7].The post-failure conditions in the Material 54 model simulates four types of failure (i.e., tensile fiber mode, compressive fiber mode, tensile matrix mode and compressive matrix mode). If fiber breakage and/or fiber matrix shear failure occurs in a lamina, both the lamina s transverse modulus and minor Poisson s ratio are reduced to zero, the change in the longitudinal modulus and shear modulus follows the Weibull distribution. If matrix failure occurs either in tension or (1)

4 compression, then the transverse modulus and minor Poisson s ratio are reduced to zero, while the longitudinal modulus and shear modulus remain unchanged [7]. The mechanical properties of the tubes are given in Table 2. The properties were measured after conducting tests on specimens made by the same material of the tubes. Table 2. Material model parameters Density (kg/m 3 ) ρ 1900 Longitudinal modulus (Pa) Ea 33.5e+09 Transverse modulus (Pa) Eb 8e+09 In-plane shear modulus (Pa) Gab 5.5e+09 Out of plane shear modulus (Pa) Gbc 5.5e+09 Minor Poisson s ratio vab 0.29 Longitudinal tensile strength (Pa) X T 400e+06 Longitudinal compressive strength (Pa) X C 200e+06 In-plane shear strength (Pa) S C 25e Boundary Conditions The bottom of the tube was constrained by the *RIGIDWALL_GEOMETRIC_FLAT command in order to simulate the plane where the tube is standing on while the modeled upper end was free and subjected to compression by a moving plate. The loading plate was modeled as *MAT_RIGID. The density of both loading plate and tube were scaled up by factor 1000 for the purpose of computation efficiency, while still maintaining a quasi-static condition [7, 11]. It was observed that the ratio of the total kinetic energy to the total internal energy was less than 4% during the crushing process. The loading plate was displaced using the *BOUNDARY_ PRESCRIBED_ MOTION_ RIGID command at a constant rate of 200mm/min. The contact algorithm *CONTACT_ CONSTRAINT_ NODES_ TO_ SURFACE was used to simulate the boundary conditions between the plate and the tube. 4. RESULTS In the Figures 3 to 8 the comparison can be seen between numerical and experimental results. Visually the deformation of the circular tubes matches with the deformation in the experiments. In the square tubes there is no initiation of failure in the corners of the geometry as it was observed in the experiments and it is one of the reasons that the numerical curve differs from the experimental (Figures 7-8). Comparison of the force vs. displacement curves shows relatively good agreement between the numerical and the experimental results. In all numerical models the peak force was more or less the same with the peak force in the experiments. On the other hand the prediction of the absorbed energy for a crushing distance of 0.05m is not very accurate as it can be seen in Table 3, one of the main reasons is that no friction mechanism was taken into account and also the use of shell elements in combination with the material model do not simulate accurately the mechanisms of fracture and delamination. The effect of triggering can be seen on Table 3 and Figure 9. The tubes that absorb the most energy are the square with triggering 2 and the 38mm circular with triggering 1. In order to choose energy absorber for high velocity impact from quasistatic testing the most effective tubes are the two circular tubes(38mm and 50mm) with triggering 2

5 because the force is not increasing rapidly and it is easier to initiate the failure. In general triggering 2 is most effective in initiating damage. Table 3. Absorbed energy for 0.05m crushing distance Experimental Numerical Difference 38mm_triggering_ Joule Joule 24.08% 38mm_triggering_ Joule Joule 0.47% 50mm_triggering_ Joule Joule 20.25% 50mm_triggering_ Joule Joule 24.99% Square_triggering_ Joule Joule 12.02% Square_triggering_ Joule Joule 21.85% Figure 3: The force vs. displacement for the tube of 38mm with triggering 1. Figure 4: The force vs. displacement for the tube of 38mm with triggering 2.

6 Figure 5: The force vs. displacement for the tube of 50mm with triggering 1. Figure 6: The force vs. displacement for the tube of 50mm with triggering 2. Figure 7: The force vs. displacement for the square tube with triggering 1.

7 Figure 8: The force vs. displacement for the square tube with triggering 2. Figure 9. Experimental load-displacement curves. 5. CONCLUSIONS Summarizing the results of this study it was found that finite element analysis can be used as a design tool and is able to give relatively accurate results considering that the finite element models are simply designed and are mainly based on the mechanisms of material model that was used. The results from this study can be used for further research on impact and blast load in order to choose an effective energy absorber. It was observed that the two circular tubes with triggering 2 seem to be the most effective ones because the peak force is low and not reached rapidly as a result the energy absorber will be deformed easier. The experimental results give also an estimation of the force that is required to achieve failure and initiate the damage.

8 REFERENCES 1- S. R. Guillow, G. Lu, R. H. Grzebieta, Quasi-static axial compression of thin-walled circular aluminum tubes, International Journal of Mechanical Sciences 43 (2001) M. Langseth, O. S. Hopperstad, T. Berstad, Crashworthiness of aluminum extrusions: validation of numerical simulation, effect of mass ratio and impact velocity, International Journal of Impact Engineering 22 (1999) 829} A.M. Elgalai, E. Mahdi, A. M. S. Hamouda, B. S. Sahari, Crushing response of composite corrugated tubes to quasi-static axial loading, Composite Structures 66 (2004) A. G. Mamalis, D. E. Manolakos, M. B. Ioannidis, D. P. Papapostolou, Crashworthy characteristics of axially statically compressed thin-walled square CFRP composite tubes: experimental, Composite Structures 63 (2004) A. G. Mamalis, D. E. Manolakos, M. B. Ioannidis, D. P. Papapostolou, The static and dynamic axial collapse of CFRP square tubes: Finite element modeling, Composite Structures 74 (2006) H. G. S. J. Thuis & V. H. Metz, The influence of trigger configurations and laminate lay-up on the failure mode of composite crush cylinders, Composite Structures 25 (1993) Haipeng Han, Farid Taheri, Neil Pegg, You Lu, A numerical study on the axial crushing response of hybrid pultruded and ±45 braided tubes, Composite Structures 80 (2007) Hong-Wei Song, Zhi-Min Wan, Zhi-Min Xie, Xing-Wen Du, Axial impact behavior and energy absorption efficiency of composite wrapped metal tubes, International Journal of Impact Engineering 24 (2000) 385} M. Guden*, S. Yu ksel, A. Tas_demirci, M. Tanog lu, Effect of aluminum closedcell foam filling on the quasi-static axial crush performance of glass fiber reinforced polyester composite and aluminum/composite hybrid tubes, Composite Structures 81 (2007) LS-DYNA keyword user s manual, V971, LSTC, Livermore, CA, Feixia Pan, Jiansen Zhu, Antti O. Helminen, Ramin Vatanparast, NOKIA Inc., Three Point Bending Analysis of a Mobile Phone Using LS-DYNA Explicit Integration Method, 9th International LS-DYNA Users Conference.

SIMPLIFIED MODELING OF THIN-WALLED TUBES WITH OCTAGONAL CROSS SECTION AXIAL CRUSHING. Authors and Correspondance: Abstract:

SIMPLIFIED MODELING OF THIN-WALLED TUBES WITH OCTAGONAL CROSS SECTION AXIAL CRUSHING Authors and Correspondance: Yucheng Liu, Michael L. Day Department of Mechanical Engineering University of Louisville

Lateral Crushing of Square and Rectangular Metallic Tubes under Different Quasi-Static Conditions

Vol:, No:1, 2 Lateral Crushing of Square and Rectangular Metallic Tubes under Different Quasi-Static Conditions Sajjad Dehghanpour, Ali Yousefi International Science Index, Mechanical and Mechatronics

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.

An investigation of the mechanical behaviour of carbon epoxy cross ply cruciform specimens under biaxial loading

An investigation of the mechanical behaviour of carbon epoxy cross ply cruciform specimens under biaxial loading A. Makris, C. Ramault, D. Van Hemelrijck Department of Mechanics of Materials and Constructions,

Behavior of Tubular Hat Structure Under Three Point Bending

International Journal of Transportation Engineering and Technology 2016; 2(5-1): 18-24 http://www.sciencepublishinggroup.com j/ijtet doi: 10.11648/j.ijtet.s.2016020501.14 Behavior of Tubular Hat Structure

BIAXIAL STRENGTH INVESTIGATION OF CFRP COMPOSITE LAMINATES BY USING CRUCIFORM SPECIMENS

BIAXIAL STRENGTH INVESTIGATION OF CFRP COMPOSITE LAMINATES BY USING CRUCIFORM SPECIMENS H. Kumazawa and T. Takatoya Airframes and Structures Group, Japan Aerospace Exploration Agency 6-13-1, Ohsawa, Mitaka,

Lecture #10: Anisotropic plasticity Crashworthiness Basics of shell elements

Lecture #10: 151-0735: Dynamic behavior of materials and structures Anisotropic plasticity Crashworthiness Basics of shell elements by Dirk Mohr ETH Zurich, Department of Mechanical and Process Engineering,

Modeling Hailstone Impact onto Composite Material Panel Under a Multi-axial State of Stress

Modeling Hailstone Impact onto Composite Material Panel Under a Multi-axial State of Stress Authors Marco ANGHILERI * Luigi-M L CASTELLETTI * Andrea MILANESE * and Andrea SEMBOLONI * Affiliation * Politecnico

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

FCP Short Course. Ductile and Brittle Fracture. Stephen D. Downing. Mechanical Science and Engineering

FCP Short Course Ductile and Brittle Fracture Stephen D. Downing Mechanical Science and Engineering 001-015 University of Illinois Board of Trustees, All Rights Reserved Agenda Limit theorems Plane Stress

SOME RESEARCH ON FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS

Mechanical Testing and Diagnosis ISSN 2247 9635, 2012 (II), Volume 3, 79-85 SOME RESEARCH ON FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS Valeriu DULGHERU, Viorel BOSTAN, Marin GUŢU Technical University

The design of a formula student front impact attenuator

The design of a formula student front impact attenuator J.M.J. Schormans MT 10.06 Supervisors: dr. ir. Varvara Kouznetsova Eindhoven University of Technology Department of Mechanical Engineering Computational

FASTENER PULL-THROUGH FAILURE IN GFRP LAMINATES

18 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS FASTENER PULL-THROUGH FAILURE IN GFRP LAMINATES G. Catalanotti 1*, P.P. Camanho 1, P. Ghys 2, A.T. Marques 1 1 DEMec, Faculdade de Engenharia, Universidade

VALIDATION of CoDA SOFTWARE for COMPOSITES SYNTHESIS AND PRELIMINARY DESIGN (or GETTING COMPOSITES USED - PART 2 )

VALIDATION of CoDA SOFTWARE for COMPOSITES SYNTHESIS AND PRELIMINARY DESIGN (or GETTING COMPOSITES USED - PART 2 ) Graham D Sims and William R Broughton Composites Design Data and Methods, Centre for Materials

Poisson s ratio as a sensitive indicator of (fatigue) damage in fibre-reinforced plastics

10.1111/j.1460-2695.2007.01095.x Poisson s ratio as a sensitive indicator of (fatigue) damage in fibre-reinforced plastics W. VAN PAEPEGEM, I. DE BAERE, E. LAMKANFI and J. DEGRIECK Ghent University, Department

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

Tensile behaviour of anti-symmetric CFRP composite

Available online at www.sciencedirect.com Procedia Engineering 1 (211) 1865 187 ICM11 Tensile behaviour of anti-symmetric CFRP composite K. J. Wong a,b, *, X. J. Gong a, S. Aivazzadeh a, M. N. Tamin b

PRELIMINARY PREDICTION OF SPECIMEN PROPERTIES CLT and 1 st order FEM analyses

OPTIMAT BLADES Page 1 of 24 PRELIMINARY PREDICTION OF SPECIMEN PROPERTIES CLT and 1 st order FEM analyses first issue Peter Joosse CHANGE RECORD Issue/revision date pages Summary of changes draft 24-10-02

S. Srinivasan, Technip Offshore, Inc., Houston, TX

9 th ASCE Specialty Conerence on Probabilistic Mechanics and Structural Reliability PROBABILISTIC FAILURE PREDICTION OF FILAMENT-WOUND GLASS-FIBER Abstract REINFORCED COMPOSITE TUBES UNDER BIAXIAL LOADING

EVALUATION OF DEBONDING ENERGY RELEASE RATE OF EXTERNALLY BONDED FRP SHEETS FOR REHABILITATION OF INFRASTRUCTURES

EVALUATION OF DEBONDING ENERGY RELEASE RATE OF EXTERNALLY BONDED FRP SHEETS FOR REHABILITATION OF INFRASTRUCTURES Koji YAMAGUCHI 1, Isao KIMPARA 1, and Kazuro KAGEYAMA 1 1 Department of Environmental &

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,

DEFORMATION CAPACITY OF OLDER RC SHEAR WALLS: EXPERIMENTAL ASSESSMENT AND COMPARISON WITH EUROCODE 8 - PART 3 PROVISIONS

DEFORMATION CAPACITY OF OLDER RC SHEAR WALLS: EXPERIMENTAL ASSESSMENT AND COMPARISON WITH EUROCODE 8 - PART 3 PROVISIONS Konstantinos CHRISTIDIS 1, Emmanouil VOUGIOUKAS 2 and Konstantinos TREZOS 3 ABSTRACT

Quasi-static simulation approaches on rollover impact of a bus structure

Quasi-static simulation approaches on rollover impact of a bus structure DAN ALEXANDRU MICU, MIHAIL DANIEL IOZSA, CORNELIA STAN Automotive Engineering Department University POLITEHNICA of Bucharest 313

Anisotropic modeling of short fibers reinforced thermoplastics materials with LS-DYNA

Anisotropic modeling of short fibers reinforced thermoplastics materials with LS-DYNA Alexandre Hatt 1 1 Faurecia Automotive Seating, Simplified Limited Liability Company 1 Abstract / Summary Polymer thermoplastics

*MAT_PAPER and *MAT_COHESIVE_PAPER: Two New Models for Paperboard Materials

14 th International LS-DYNA Users Conference Session: Constitutive Modeling *MAT_PAPER and *MAT_COHESIVE_PAPER: Two New Models for Paperboard Materials Jesper Karlsson 1, Mikael Schill 1, Johan Tryding

ITE IMPACT ON. Summary. concurrent. phenomena delamination. sub-routine. simulations discussed. Keywords: Volnei Tita.

NUMERICAL AND EXPERIMENTAL ANALYSES OF LOW VELOCITY IMPACT ON THIN COMPOS ITE Marcelo L. Ribeiro Department of Aeronautical Engineeringg Engineering Scholl of São Carlos University of São S Paulo malribei@usp.

Influence of residual stresses in the structural behavior of. tubular columns and arches. Nuno Rocha Cima Gomes

October 2014 Influence of residual stresses in the structural behavior of Abstract tubular columns and arches Nuno Rocha Cima Gomes Instituto Superior Técnico, Universidade de Lisboa, Portugal Contact:

Size Effects In the Crushing of Honeycomb Structures

45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference 19-22 April 2004, Palm Springs, California AIAA 2004-1640 Size Effects In the Crushing of Honeycomb Structures Erik C.

Interlaminar fracture characterization in composite materials by using acoustic emission

5th International Symposium on NDT in Aerospace, 13-15th November 2013, Singapore Interlaminar fracture characterization in composite materials by using acoustic emission Ian SILVERSIDES 1, Ahmed MASLOUHI

UNIT I SIMPLE STRESSES AND STRAINS

Subject with Code : SM-1(15A01303) Year & Sem: II-B.Tech & I-Sem SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) UNIT I SIMPLE STRESSES

DESIGNING COMPOSITE STRUCTURES FOR IMPACT PERFORMANCE WHAT CAN WE LEARN FROM THE AEROSPACE INDUSTRY?

DESIGNING COMOSITE STRUCTURES FOR IMACT ERFORMANCE WHAT CAN WE LEARN FROM THE AEROSACE INDUSTRY? Dr. Robert N. Yancey, Mr. Jean Michel Terrier, Mr Jean Baptiste Mouillet Altair Engineering Abstract Understanding

Enhancing Prediction Accuracy In Sift Theory

18 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS Enhancing Prediction Accuracy In Sift Theory J. Wang 1 *, W. K. Chiu 1 Defence Science and Technology Organisation, Fishermans Bend, Australia, Department

Non-conventional Glass fiber NCF composites with thermoset and thermoplastic matrices. F Talence, France Le Cheylard, France

20 th International Conference on Composite Materials Copenhagen, 19-24th July 2015 Non-conventional Glass fiber NCF composites with thermoset and thermoplastic matrices. Thierry Lorriot 1, Jalal El Yagoubi

Strength of Material. Shear Strain. Dr. Attaullah Shah

Strength of Material Shear Strain Dr. Attaullah Shah Shear Strain TRIAXIAL DEFORMATION Poisson's Ratio Relationship Between E, G, and ν BIAXIAL DEFORMATION Bulk Modulus of Elasticity or Modulus of Volume

Nonlinear Finite Element Analysis of Airport Approach Lighting Structures under Impact Loading

8 th International LS-DYNA Users Conference Simulation Technology (2) Nonlinear Finite Element Analysis of Airport Approach Lighting Structures under Impact Loading M. Nejad Ensan *1, D.G. Zimcik 1, S.T.

FINITE ELEMENT ANALYSIS OF A LAYERED COMPOSITE CYLINDER USING THE CONNECTION BETWEEN THE MACRO- AND MICROSTRUCTURE

FINITE ELEMENT ANALYI OF A LAYERED COMPOITE CYLINDER UING THE CONNECTION BETWEEN THE MACRO- AND MICROTRUCTURE A. zekrényes Research Assistant, Department of Applied Mechanics, Budapest University of Technology

The stiffness tailoring of megawatt wind turbine

IOP Conference Series: Materials Science and Engineering OPEN ACCESS The stiffness tailoring of megawatt wind turbine To cite this article: Z M Li et al 2013 IOP Conf. Ser.: Mater. Sci. Eng. 52 052008

HexWeb Honeycomb Energy Absorption Systems Design Data

HexWeb Honeycomb Energy Absorption Systems Design Data Contents Introduction. HexWeb Honeycomb Core Types... Typical HexWeb Crush Curve... Crush Strength Curve... Dynamic Crush Strength Guideline. Load

14. LS-DYNA Forum 2016

14. LS-DYNA Forum 2016 A Novel Approach to Model Laminated Glass R. Böhm, A. Haufe, A. Erhart DYNAmore GmbH Stuttgart 1 Content Introduction and Motivation Common approach to model laminated glass New

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

Nonlinear Analysis of Reinforced Concrete Shells Subjected to Impact Loads

Transactions of the 7 th International Conference on Structural Mechanics in Reactor Technology (SMiRT 7) Prague, Czech Republic, August 7, 00 Paper # J0- Nonlinear Analysis of Reinforced Concrete Shells

Analysis and Optimization of a Hybrid Fan Blade

Analysis and Optimization of a Hybrid Fan Blade Permas Users Conference 27.04.06 28.04.06 Strassbourg DLR German Aerospace Center, Stuttgart Institute of Structures and Design J. Ehrmanntraut, F. Kocian,

Lap splice length and details of column longitudinal reinforcement at plastic hinge region

Lap length and details of column longitudinal reinforcement at plastic hinge region Hong-Gun Park 1) and Chul-Goo Kim 2) 1), 2 Department of Architecture and Architectural Engineering, Seoul National University,

Eurocode 8 Part 3: Assessment and retrofitting of buildings

in the Euro-Mediterranean Area Eurocode 8 Part 3: Assessment and retrofitting of buildings Paolo Emilio Pinto Università di Roma La Sapienza Urgency of guidance documents for assessment and retrofit in

THREE DIMENSIONAL STRESS ANALYSIS OF THE T BOLT JOINT

THREE DIMENSIONAL STRESS ANALYSIS OF THE T BOLT JOINT Víctor Martínez 1, Alfredo Güemes 2, Norbert Blanco 1, Josep Costa 1 1 Escola Politècnica Superior. Universitat de Girona. Girona, Spain (17071) 2

Tuesday, February 11, Chapter 3. Load and Stress Analysis. Dr. Mohammad Suliman Abuhaiba, PE

1 Chapter 3 Load and Stress Analysis 2 Chapter Outline Equilibrium & Free-Body Diagrams Shear Force and Bending Moments in Beams Singularity Functions Stress Cartesian Stress Components Mohr s Circle for

Mechanics of Solids. Mechanics Of Solids. Suraj kr. Ray Department of Civil Engineering

Mechanics Of Solids Suraj kr. Ray (surajjj2445@gmail.com) Department of Civil Engineering 1 Mechanics of Solids is a branch of applied mechanics that deals with the behaviour of solid bodies subjected

MODEL VALIDATION AND STRUCTURAL ANALYSIS OF A SMALL WIND TURBINE BLADE

8th International DAAAM Baltic Conference INDUSTRIAL ENGINEERING 19-21 April 2012, Tallinn, Estonia MODEL VALIDATION AND STRUCTURAL ANALYSIS OF A SMALL WIND TURBINE BLADE Pabut, O.; Allikas, G.; Herranen,

Crash Safety of Lithium-Ion Batteries for Electric Vehicles

Crash Safety of Lithium-Ion Batteries for Electric Vehicles Elham Sahraei Esfahani Research Scientist, MIT Assistant Professor, GMU Vehicle Crashes and Testing Battery Packs in T Configuration Chevy Volt

ACET 406 Mid-Term Exam B

ACET 406 Mid-Term Exam B SUBJECT: ACET 406, INSTRUCTOR: Dr Antonis Michael, DATE: 24/11/09 INSTRUCTIONS You are required to answer all of the following questions within the specified time (90 minutes).you

Finite element modelling of infinitely wide Angle-ply FRP. laminates

www.ijaser.com 2012 by the authors Licensee IJASER- Under Creative Commons License 3.0 editorial@ijaser.com Research article ISSN 2277 9442 Finite element modelling of infinitely wide Angle-ply FRP laminates

Materials and Structures. Indian Institute of Technology Kanpur

Introduction to Composite Materials and Structures Nachiketa Tiwari Indian Institute of Technology Kanpur Lecture 15 Behavior of Unidirectional Composites Lecture Overview Mt Material ilaxes in unidirectional

Tolerance Ring Improvement for Reducing Metal Scratch

International Journal of Scientific and Research Publications, Volume 2, Issue 11, November 2012 1 Tolerance Ring Improvement for Reducing Metal Scratch Pattaraweerin Woraratsoontorn*, Pitikhate Sooraksa**

BUCKLING AND POSTBUCKLING ANALYSIS OF SHELLS UNDER QUASI-STATIC AND DYNAMIC LOADS

BUCKLING AND POSTBUCKLING ANALYSIS OF SHELLS UNDER QUASI-STATIC AND DYNAMIC LOADS R. Degenhardt, H. Klein, A. Kling, H. Temmen, R. Zimmermann DLR Institute of Structural Mechanics Lilienthalplatz 7, 388

International Conference on Mechanics and Civil Engineering (ICMCE 2014)

International Conference on Mechanics and Civil Engineering (ICMCE 2014) Parametric Design and Experimental Study for Weak Area Structure of Circle Composite Fragile Cover Ran CAO 1,a, Guang-Ming ZHOU

Modeling of self-piercing riveted joints for crash simulation state of the art and future topics

Modeling of self-piercing riveted joints for crash simulation state of the art and future topics 1 Abstract Matthias Bier 1, Silke Sommer 1 1 Fraunhofer Institute for Mechanics of Materials IWM, Freiburg,

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,

Journal of Composite Materials. Behaviour of hollow pultruded GFRP square beams with different shear span-to-depth ratios

Behaviour of hollow pultruded GFRP square beams with different shear span-to-depth ratios Journal: Manuscript ID: Draft Manuscript Type: Original Manuscript Date Submitted by the Author: n/a Complete List

REPRESENTING MATRIX CRACKS THROUGH DECOMPOSITION OF THE DEFORMATION GRADIENT TENSOR IN CONTINUUM DAMAGE MECHANICS METHODS

20 th International Conference on Composite Materials Copenhagen, 19-24 th July 2015 REPRESENTING MATRIX CRACKS THROUGH DECOMPOSITION OF THE DEFORMATION GRADIENT TENSOR IN CONTINUUM DAMAGE MECHANICS METHODS

Composite Laminate Modeling

omposite Laminate Modeling White Paper for Femap and NX Nastran Users Venkata Bheemreddy, Ph.D., Senior Staff Mechanical Engineer Adrian Jensen, PE, Senior Staff Mechanical Engineer WHAT THIS WHITE PAPER

*MAT_PAPER - a new orthotropic elastoplastic model for paper materials

*MAT_PAPER - a new orthotropic elastoplastic model for paper materials Jesper Karlsson, Dynamore Nordic Mikael Schill, Dynamore Nordic Johan Tryding, Tetra Pak *MAT_PAPER (*MAT_274) A new orthotropic elastoplastic

TESTING AND ANALYSIS OF COMPOSITE SANDWICH BEAMS

TESTING AND ANALYSIS OF COMPOSITE SANDWICH BEAMS I. M. Daniel, J. L. Abot, and K. A. Wang Walter P. Murphy Professor, Departments of Civil and Mechanical Engineering, Robert R. McCormick School of Engineering

Agnieszka Bondyra, Pawe Gotowicki

Journal of KONES Powertrain and Transport, Vol. 17, No. 1 21 INFLUENCE OF A CROSSHEAD RATE AND A NUMBER OF STRESS CYCLES ON MEASUREMENT RESULTS IN THE IN-PLANE SHEAR TEST FOR A CROSS-PLY VINYLESTER-CARBON

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,

University of Bristol - Explore Bristol Research. Early version, also known as pre-print

Hallett, S. R., & Wisnom, M. R. (2006). Numerical investigation of progressive damage and the effect of layup in notched tensile tests. Journal of Composite Materials, 40 (14), 1229-1245. DOI: 10.1177/0021998305057432

MECHANICS OF MATERIALS

Third E CHAPTER 2 Stress MECHANICS OF MATERIALS Ferdinand P. Beer E. Russell Johnston, Jr. John T. DeWolf Lecture Notes: J. Walt Oler Texas Tech University and Strain Axial Loading Contents Stress & Strain:

Chapter 5. Vibration Analysis. Workbench - Mechanical Introduction ANSYS, Inc. Proprietary 2009 ANSYS, Inc. All rights reserved.

Workbench - Mechanical Introduction 12.0 Chapter 5 Vibration Analysis 5-1 Chapter Overview In this chapter, performing free vibration analyses in Simulation will be covered. In Simulation, performing a

Upon Impact Numerical Modeling of Foam Materials

Upon Impact Numerical Modeling of Foam Materials VASILE NASTASESCU*, SILVIA MARZAVAN Military Technical Academy, 81-83 George Cosbuc Blvd., 050141, Bucharest, Romania The paper presents some theoretical

SANDWICH COMPOSITE BEAMS for STRUCTURAL APPLICATIONS

SANDWICH COMPOSITE BEAMS for STRUCTURAL APPLICATIONS de Aguiar, José M., josemaguiar@gmail.com Faculdade de Tecnologia de São Paulo, FATEC-SP Centro Estadual de Educação Tecnológica Paula Souza. CEETEPS

APPLICATION OF ISOTENSOID-BASED CROSS SECTIONS TO FILAMENT-WOUND TOROIDAL PRESSURE VESSELS

APPLICATION OF ISOTENSOID-BASED CROSS SECTIONS TO FILAMENT-WOUND TOROIDAL PRESSURE VESSELS L. Zu, S. Koussios and A. Beukers Design and Production of Composite Structures, Faculty of Aerospace Engineering

Effects of geometry and properties of fibre and matrix on overall. composite parameters

Int. Journal of Applied Sciences and ngineering Research, ol. 3, Issue 4, 2014 www.ijaser.com 2014 by the authors Licensee IJASR- Under Creative Commons License 3.0 editorial@ijaser.com Research article

Linear and Nonlinear Analysis of High Dynamic Impact Events with Creo Simulate and Abaqus/Explicit

Linear and Nonlinear Analysis of High Dynamic Impact Events with Creo Simulate and Abaqus/Explicit SAXSIM 2015, TU Chemnitz Dr.-Ing. Roland Jakel At a glance: Altran, a global leader 20+ Countries 23,000+

3D Compression Molding

Autodesk Simulation Moldflow Insight 2014 3D Compression Molding Executive summary In this work, the simulation results from a program developed for the three-dimensional analysis of compression molding

MESH MODELING OF ANGLE-PLY LAMINATED COMPOSITE PLATES FOR DNS AND IPSAP

16 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS MESH MODELING OF ANGLE-PLY LAMINATED COMPOSITE PLATES FOR DNS AND IPSAP Wanil Byun*, Seung Jo Kim*, Joris Wismans** *Seoul National University, Republic

Micro-meso draping modelling of non-crimp fabrics

Micro-meso draping modelling of non-crimp fabrics Oleksandr Vorobiov 1, Dr. Th. Bischoff 1, Dr. A. Tulke 1 1 FTA Forschungsgesellschaft für Textiltechnik mbh 1 Introduction Non-crimp fabrics (NCFs) are

Finite Element Modelling with Plastic Hinges

01/02/2016 Marco Donà Finite Element Modelling with Plastic Hinges 1 Plastic hinge approach A plastic hinge represents a concentrated post-yield behaviour in one or more degrees of freedom. Hinges only

CAPACITY DESIGN FOR TALL BUILDINGS WITH MIXED SYSTEM

13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 24 Paper No. 2367 CAPACITY DESIGN FOR TALL BUILDINGS WITH MIXED SYSTEM M.UMA MAHESHWARI 1 and A.R.SANTHAKUMAR 2 SUMMARY

DTU Space Carbon Fiber Reinforced Plastic and CFRP projects. Niels Christian Jessen Hans Ulrik Nørgaard-Nielsen

DTU Space Carbon Fiber Reinforced Plastic and CFRP projects Niels Christian Jessen Hans Ulrik Nørgaard-Nielsen Why CFRP + Material properties can be designed + High Specific Stiffness Young's module /

6 th International Conference Computational Mechanics and Virtual Engineering COMEC 15 15-16 October 15, Braşov, Romania COMPUER AIDED DESIGN IN CASE OF HE LAMINAED COMPOSIE MAERIALS Camelia Cerbu ransilvania

Behavior and Modeling of Existing Reinforced Concrete Columns

Behavior and Modeling of Existing Reinforced Concrete Columns Kenneth J. Elwood University of British Columbia with contributions from Jose Pincheira, Univ of Wisconsin John Wallace, UCLA Questions? What

DIGITAL IMAGE CORRELATION TECHNIQUE IN MEASURING DEFORMATION AND FAILURE OF COMPOSITE AND ADHESIVE

DIGITAL IMAGE CORRELATION TECHNIQUE IN MEASURING DEFORMATION AND FAILURE OF COMPOSITE AND ADHESIVE Ab Ghani A. F Sustainable Maintenance Engineering Research Group, Universiti Teknikal Malaysia Melaka,

Module 7: Micromechanics Lecture 29: Background of Concentric Cylinder Assemblage Model. Introduction. The Lecture Contains

Introduction In this lecture we are going to introduce a new micromechanics model to determine the fibrous composite effective properties in terms of properties of its individual phases. In this model

Chapter 6: Mechanical Properties of Metals. Dr. Feras Fraige

Chapter 6: Mechanical Properties of Metals Dr. Feras Fraige Stress and Strain Tension Compression Shear Torsion Elastic deformation Plastic Deformation Yield Strength Tensile Strength Ductility Toughness

Transactions on Engineering Sciences vol 13, 1996 WIT Press, ISSN

Computational debonding analysis of a thermally stressed fiber/matrix composite cylinder F.-G. Buchholz," O. Koca* "Institute ofapplied Mechanics, University ofpaderborn, D-33098 Paderborn, Germany ^Institute

Investigation of the Shear Thickening Fluid Dynamic Properties and its Influence on the Impact Resistance of Multilayered Fabric Composite Barrier

11 th International LS-DYNA Users Conference Blast / Impact (1) Investigation of the Shear Thickening Fluid Dynamic Properties and its Influence on the Impact Resistance of Multilayered Fabric Composite

BUCKLING AND POST-BUCKLING IN FILAMENT WOUND COMPOSITE TUBES UNDER TRANSVERSE COMPRESSION

2 th International Conference on Composite Materials Copenhagen, 19-24 th July 215 BUCKLING AND POST-BUCKLING IN FILAMENT WOUND COMPOSITE TUBES UNDER TRANSVERSE COMPRESSION José Humberto S. Almeida Jr.

Example-3. Title. Description. Cylindrical Hole in an Infinite Mohr-Coulomb Medium

Example-3 Title Cylindrical Hole in an Infinite Mohr-Coulomb Medium Description The problem concerns the determination of stresses and displacements for the case of a cylindrical hole in an infinite elasto-plastic

6. NON-LINEAR PSEUDO-STATIC ANALYSIS OF ADOBE WALLS

6. NON-LINEAR PSEUDO-STATIC ANALYSIS OF ADOBE WALLS Blondet et al. [25] carried out a cyclic test on an adobe wall to reproduce its seismic response and damage pattern under in-plane loads. The displacement

ID-1160 REAL-TIME DETECTION AND EXPLICIT FINITE ELEMENT SIMULATION OF DELAMINATION IN COMPOSITE LAMINATES UNDER IMPACT LOADING

ID-116 REAL-TIME DETECTION AND EXPLICIT FINITE ELEMENT SIMULATION OF DELAMINATION IN COMPOSITE LAMINATES UNDER IMPACT LOADING K. Minnaar and M. Zhou = School of Mechanical Engineering Georgia Institute

Influence of Cross-Sectional Geometry on Crush Characteristics of Multi-cell Prismatic Columns

49th AIAA/ASM/ASC/AHS/ASC Structures, Structural Dynamics, and Materials Conference 16t 7-1 April 28, Schaumburg, IL AIAA 28-214 Influence of Cross-Sectional Geometry on Crush Characteristics of Multi-cell

Finite element simulation of residual stresses in laser heating

IAS-2008-66-546ST Finite element simulation of residual stresses in laser heating G. H. Farrahi 1, M. Sistaninia 2, H. Moeinoddini 3 1,2-School of Mechanical Engineering, Sharif University of Technology,

Impact on thermoplastic fibre-metal laminates: preliminary results and observations

Impact on thermoplastic fibre-metal laminates: preliminary results and observations Rafael Santiago Group of Solid Mechanics and Structural Impact Department of Mechatronics and Mechanical Systems Engineering

A FINITE ELEMENT MODEL FOR THE ANALYSIS OF DELAMINATIONS IN FRP SHELLS

TRENDS IN COMPUTATIONAL STRUCTURAL MECHANICS W.A. Wall, K.-U. Bletzinger and K. Schweizerhof (Eds.) c CIMNE, Barcelona, Spain 2001 A FINITE ELEMENT MODEL FOR THE ANALYSIS OF DELAMINATIONS IN FRP SHELLS

Presented By: EAS 6939 Aerospace Structural Composites

A Beam Theory for Laminated Composites and Application to Torsion Problems Dr. BhavaniV. Sankar Presented By: Sameer Luthra EAS 6939 Aerospace Structural Composites 1 Introduction Composite beams have

Rollover Analysis of Passenger Bus as per AIS-031

International Journal of Engineering Research and Development e-issn: 2278-067X, p-issn: 2278-800X, www.ijerd.com Volume 4, Issue 5 (October 2012), PP. 49-59 Rollover Analysis of Passenger Bus as per AIS-031

Introduction to Engineering Materials ENGR2000. Dr. Coates

Introduction to Engineering Materials ENGR2 Chapter 6: Mechanical Properties of Metals Dr. Coates 6.2 Concepts of Stress and Strain tension compression shear torsion Tension Tests The specimen is deformed

ASPECTS CONCERNING TO THE MECHANICAL PROPERTIES OF THE GLASS / FLAX / EPOXY COMPOSITE MATERIAL

5 th International Conference Advanced Composite Materials Engineering COMAT 2014 16-17 October 2014, Braşov, Romania ASPECTS CONCERNING TO THE MECHANICAL PROPERTIES OF THE GLASS / FLAX / EPOXY COMPOSITE

Pressure Vessels Stresses Under Combined Loads Yield Criteria for Ductile Materials and Fracture Criteria for Brittle Materials

Pressure Vessels Stresses Under Combined Loads Yield Criteria for Ductile Materials and Fracture Criteria for Brittle Materials Pressure Vessels: In the previous lectures we have discussed elements subjected