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

 Andrea Montgomery
 8 months ago
 Views:
Transcription
1 Int. Journal of Applied Sciences and ngineering Research, ol. 3, Issue 4, by the authors Licensee IJASR Under Creative Commons License 3.0 Research article ISSN ffects of geometry and properties of fibre and matrix on overall composite parameters Yi Xiao 1, RiSong Qin 2, Manchu Mahalingam 1 1 Research School of ngineering, Australian National University, Canberra, ACT 2601, Australia 2 Fujian Port and Waterway Survey and Research Institute, 283 Yangqiao Road, Fuzhou, China DOI: /ijaser Abstract: To determine the overall material properties, 1, 2 and G 12, of a composite lamina, a finite element (F) simulation approach is presented and its results are compared with those from mechanics of materials. To investigate the effect of fibre s geometry on the overall composite properties, three different fibre s geometries are considered, in conjunction with two matrix materials and four fibre materials. Strand 7, the commercial F analysis software, is employed to conduct F simulation. The F results of the overall material properties of the composite, for different matrix s and fibre s geometries, and material properties, are compared with those from mechanics of materials approach. Key words: Composite lamina. Finite element approach, fiber geometry, fiber matrix. 1. Introduction Composite materials are playing an ever increasing role in supplying materials to satisfy the need for more demanding applications. These materials can be tailored to specific loading conditions which make them ideal to today s climate. Composite materials are superior to conventional materials, such as metals, due to their high strength to weight and stiffness to weight ratios. In classical mechanics, at a macrolevel, the material properties are always assumed to be homogeneous on an average basis, whereas at microlevel, i.e. inside the representative volume element (R), the material properties are heterogeneous. That is, at a microlevel, the heterogeneous microstructure is known and physical laws are known. The task of micromechanics is to find homogeneous material properties at a macrolevel based on the information of microstructure. These properties are often called overall material properties or effective material properties, and the process is also known as homogenization. Recently, some investigations have been made to the composite array using methods such as the homogenization method (Qin and Yang 2008). Grassi et al (Grassi et al. 2002) numerically examined the effect of fibre volume fraction of the through thickness Young s modulus. They found that an increase of 2% fibre volume fraction of Zfibres will induce an increase in the through thickness Young s modulus by a factor of 2235%. Qin et al (Qin 2004a; Qin 2004b; Yang and Qin 2004; Qin 2005) presented several boundary element micromechanics models for predicting effective properties of materials with defects or inclusions. Antoniou et al (Antoniou et al. 2009) developed a F model to predict mechanical behavior of glass/epoxy tubes under static loading. Xu et al (Xu et al. 2008) conducted an experiment on the plate size in determining the effective modulus. Yang and Qin (Yang and Qin 2001; Yang and Qin 2003) used F method to predict effective elastoplastic properties of composites. To determine the ranges of effective properties using various micromechanics models, the oigt and Reuss Rule (Gasik 1998) presented a *Corresponding author ( 792 Received on June 17, 2014; Accepted on August 19, 2014; Published on August 29, 2014
2 method to find the upper and lower bounds respectively of the stiffness for a composite material with arbitrary fibrematrix geometry. Micromechanics models were also used to determine effective properties of piezoelectric materials with cracks (Yu and Qin 1996; Qin and Yu 1997; Qin et al. 1998), microvoids (Qin and Yu 1998), and of human dentine materials (Qin and Swain 2004; Wang and Qin 2007; Wang and Qin 2011). Several other researchers have used representative unit cell models to investigate the dependence of component properties on composite materials (Levy and Papazian 1990; Tvergaard 1990; Bao et al. 1991; Zahl and McMeeking 1991; Li et al. 1995; Feng et al. 2003). In this paper, we examine the effect of geometries and properties of fibres on composites through F unit cell model. In particular, the three types of properties, namely 1, the Young s modulus in the fibre direction; 2, the Young s modulus in the transverse fibre direction; and G 12 the inplane shear modulus, are examined. By varying the shapes and material properties on the basis of mechanical and physical consideration the effect on the overall material properties can be explored. Moreover, the effect of the length in fibre direction on 1 is investigated and the minimum length required for achieving an acceptable converging result of 1 is obtained. 2. Background formulations In this section, two basic approaches for determining effective properties of fibre composites are briefly described in order to establish notations and provide a common source for reference in later sections. Moreover, material properties used in this work are listed in Section Mechanics of materials approach (MMA) The mechanics of materials method provides an accurate technique to calculate effective material properties of the fibre reinforced composites. These overall material properties can be used to predict the material behavior with various interfaces. The mechanics of materials approach determines the overall material properties due to their respective fibre and matrix volume fractions and constituent material properties. It assumes an average of stresses and strains to examine the global response. The first modulus to be determined is that of the composite material in the fibre direction (denoted as 1 axis), where, ε 1 applies to both the fibres and the matrix according to the basic assumption. 1 = f f + mm (1) q (1) is known as the rule of mixtures for the apparent Young s modulus of the composite material in the direction of the fibres. With the mechanics of materials method, the remain three properties can be determined using 2 m f = + m f f m, G12 GmG f = G + G m f f m ν12 = νmm + νf f (3) The rule appeared in q (2) is known as inverse rule of mixtures. 2.2 Finite element analysis (FA) (2) In order to obtain values for the material properties of fibre reinforced composites using a finite element method, the basic formulations are briefly described in this section. These differ to the mechanics of materials method in that they relate to the basic understanding of stress/strain relations and are not directly 793
3 related to the volume fractions as stated in Section ffective Young s modulus in fibre direction 1 and major Poisson ratio ν 12 1 and ν 12 can be determined by considering the loading case shown in Figure 1, where a stress σ 1 is applied in the fibre direction of the composite. The ffective Young s modulus and major Poisson ratio are, then, evaluated by σ σ d / σ d ε d / ε d ε = = =, ν 12 = = = ε1 1 ε1 / ε ε 1 ε1 / ε1 d d d d (4) Figure 1: Composite loaded in fibre direction If the left end is fixed and be defined as L represents the average displacement at the right end, the average strain can ε = L / L (5) Therefore, the major task for F calculation is to determine L and the average stress σ 1. This has been implemented into our F program ffective Transverse Young s modulus 2 Considering the loading case shown in Figure 2, the ffective Transverse Young s modulus 2 is defined as σ d / σ2 2 = = = ε2 ε d / σ d 2 2 ε d 2 2 where ε 2 = W / W. the major task for F calculation is to determine W and the average stress σ 2. (6) 794
4 Figure 2: Composite loaded in transverse direction ffective shear modulus G 12 The inplane shear modulus of a fibre reinforced composite can be determined by considering the loading case shown in Figure 3, a shear stress is applied over the boundary of the composite. G 12 τd / τ = = = γ γd / τd γd (7) Figure 3: Composite loaded with shear stress Considering the shear strain can be defined as u/y, where u is displacement in fibre direction and y stands for the vertical coordinate originated at the bottom of the composite, the task of F calculation, in this case, is to evaluate shear stress and the displacement u. From these equations, we can determine 1, 2 and G 12, noting that all other stress and strains are taken as zero except for the stress and strain along the direction for the material property being determined. 2.3 Material properties A list of common composite fibre and matrix materials were selected to model the geometries above. Fibres: 1) Carbon Fibre; 2) Kevlar; and 3) glass, and 4) Sglass) Matrix: 1) poxy Resin; and 2) Polyester Resin Tables 1 and 2 listed the mechanical properties of materials used in FA: 795
5 Table 1: Fibre Properties Fibre Material Carbon Fibre Kevlar 49 glass Sglass Young s Modulus 294GPa 131GPa 78GPa 89GPa Poisson s ratio Table 2: Matrix Properties Matrix Material (Resins) poxy Polyester Young s Modulus (tensile) 2.415GPa 2.467GPa Poisson s ratio Results and discussion To study effects of properties of each component and fibre s geometry on the overall properties of the composite, following 8 cases are considered: 1) carbon fibre with poxy Resin; 2) carbon fibre with Polyester Resin; 3) Kevlar49 with poxy Resin; 4) Kevlar49 with Polyester Resin; 5) glass with poxy Resin; 6) glass with Polyester Resin; 7) Sglass with poxy Resin; and 8) Sglass with Polyester Resin. For each case mentioned above, 6 combinations of geometry are involved: a) Rectangular matrix with circular fibres (RMCF); b) Rectangular matrix with hexagonal fibres (RMHF); c) Rectangular matrix with triangular fibres (RMTF); d) Square matrix with circular fibres (SMCF); e) Square matrix with hexagonal fibres (SMHF); and f) Square Matrix with triangular fibres (SMTF). The corresponding fibre volume fraction for each of these is: RMCF= ; RMHF= ; RMTF= ; SMCF= ; SMHF= ; SMTF= Figure 4: Geometry configurations of matrix and fibre (b=2 for RM and b=3 for SM) Figure 4 shows the geometry configuration of the unit cell used. It is obvious from Figure 1 that: a) total area is 6 for RM and 9 for SM; and the fibre s area is πr 2 = for circular fibre, 3 3/2 t 2 /2=3 3/ /2= for hexagonal fibre, and 0.5 for triangular fibre. The fibre volume fraction listed above is obtained based on these data. The finite element meshes used in the calculation are shown in Figure
6 a) SMCF b) SMHF c) SMTF Figure 5: Finite element meshes for square matrix with different fibre geometries The F results obtained are listed in Tables 310 and also shown in Figures 68. A comparison of the results between FA and MMA for 1 yield quite similar results. The average error between these results is within 3%, for all results, in determination of the 1. It indicates that MMA can provide acceptable accurate results for 1. Figure 6 shows a comparison between the results of varying fibre and matrix geometries. Figures 7 and 8 list the comparison in results between 2 and G 12, respectively, derived through MMA and FA. The difference of these results is within 8%, between all the results collected for 2 and G 12. As revealed by the graph the difference in results is not always constant. The square matrix with circular fibres, for example, has a smaller difference than the other models between MMA and FA results. This highlights the nonlinear nature of FA modelling software. Another point to note is that the values obtained for 1 using FA are lower than those from MMA, while the values obtained for 2 and G 12 using FA are higher than those from MMA. This is a result of the model thickness or the length in the fibre direction and will be discussed later in this paper. Table 3: Composites properties for carbon fibre with poxy Resin Properties 1 (GPa) 2 (GPa) G 12 (GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF Table 4: Composites properties for carbon fibre with Polyester Resin Properties 1 (GPa) 2 (GPa) G 12 (GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF
7 Properties Table 5: Composites properties for Kevlar49 with poxy Resin 1 (GPa) 2 (GPa) G 12 (GPa) 1(GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF Table 6: Composites properties for Kevlar49 with Polyester Resin Properties 1 (GPa) 2 (GPa) G 12 (GPa) 1(GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF Properties Table 7: Composites properties for glass with poxy Resin 1 (GPa) 2 (GPa) 1(GPa) G 12 (GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF
8 Properties Table 8: Composites properties for glass with Polyester Resin 1 (GPa) 2 (GPa) G 12 (GPa) 1(GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF Properties Table 9: Composites properties for Sglass with poxy Resin 1 (GPa) 2 (GPa) 1(GPa) G 12 (GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF Properties Table 10: Composites properties for Sglass with Polyester Resin 1 (GPa) 2 (GPa) G 12 (GPa) 1(GPa) Approach MMA FA MMA FA MMA FA RMCF RMHF RMTF SMCF SMHF SMTF
9 Figure 6: Comparison of 1 results from FA with those from MMA for the case of Carbon Fibre/poxy Resin Figure 7: Comparison of 2 results from FA with those from MMA for the case of Carbon Fibre/poxy Resin Figure 8: Comparison of 2 results from FA with those from MMA for the case of Carbon Fibre/poxy Resin 800
10 To study the effect of fibre and matrix materials on the overall material properties, several common matrix and fibre materials were selected for analysis and compared to investigate the effect material properties on the overall composite. It can be seen from Tables 310 that the material properties merely translate the corresponding values of 1, 2, and G 12 depending on the material property of components used. For example, polyester resin/matrix has a higher Young s modulus than epoxy resin, so the effect of matrix properties, compared to epoxy, is that it will increase the overall material properties 1 of the composite in a linear manner. Table 11: ariation of 1 due to variation of thickness in the 1 axis (fibre direction) 1axis thickness (mm) Stress(1axis) Displacement (1axis) Strain (GPa) Table 11 lists the 1 values obtained with respect to different thickness values of the model. That is, the thickness of the material in the fibre direction. It can be used to examine the effect of thickness on 1 when using FA. For the F results to converge towards the results obtained through MMA, a large thickness is needed to minimize end effects in the model. As the strain is a function of displacement over the original length, the strain values converge, that is, they become more uniform as the thickness increases. Nonetheless the thickness value also increases towards convergence, having the net effect of increasing the value of the 1. It could be thought that the displacement would decrease in a linear manner to the increase in thickness so that the expression L/L is held constant, this is however not the case. From this discussion it can be concluded that the ratio between thickness (fibre direction length) and the transverse direction length of the model needs to be at least 5:1 to minimize end effects in determination of the 1. For the 2 the converse ratio applies. The greater the ratio is, the more accurate the results obtained through FA are. 4. Conclusions From the analysis conducted, it can be seen that FA provides a sufficient means to calculate the overall material properties of the composite material and achieves results with acceptable accuracy. In the case of varying fibre geometries, triangular fibres exist in practice but are not common. Hexagonal fibres, not to be confused with a hexagonal array, are even less common. Nonetheless, FA also provides a method in which manufacturing of the constituent lamina of a composite is not necessary in order to begin initial testing and can therefore predict geometries that even do not exist in practice. Laboratory testing is still required before the final manufacture of composite materials, due to the inclusion of voids and matrix fibre interface. While FA provides a powerful tool to obtain premanufacturing analysis in order to determine if the manufacture of composites for specific applications is worthwhile in practice. The error rates, between the results obtained using MMA and FA is within 5% on average, which is an acceptable value. This is due to the fact that the 2 values had an approximate variance of 8% from the MMA values, whereas 1 and G 12 only had a variance of less than 3%. This error could be attributable to the fact that a composite 801
11 thickness of 10mm was used in contrast to the length of the model being 60mm. As discussed earlier in the results, the thickness has a direct effect on the overall material properties until convergence occurs. The ratio of thickness to length (see Table 11) needs to be considered to reduce end effects, and thus produce more accurate results. For convergence to occur with the 2, quite possibly a lesser thickness of 12mm could have been taken, or a greater length of material taken, or a combination of both to reduce the ratio of thickness to length, whereas with 1 the converse applies. It was found that the hexagonal fibres yielded the greatest results in overall material properties of the composite lamina. It is also noted that the hexagonal fibres had the highest fibre volume fraction of the varying geometries. It can therefore be stated from the results of this paper that the overall material properties are mainly dependant on the fibre and matrix volume fractions and are not dependant on geometry. Geometry will only define how the internal stresses and strains are dispersed within the material but, as the average strain was determined, this has no net effect on the overall material properties. In practice, however, the internal stresses due to varying the fibrematrix geometries will have an impact on the fibrematrix interface and will invariably affect the overall material properties and should not be overlooked. 5. References 1. Antoniou, A.., Kensche, C. and Philippidis, T. P., Mechanical behavior of glass/epoxy tubes under combined static loading. Part II: alidation of FA progressive damage model. Composites Science and Technology, 69(13), pp Bao, G., Hutchinson, J. W. and McMeeking, R. M., Particle reinforcement of ductile matrices against plasticflow and creep. Acta Metallurgica t Materialia, 39(8), pp Feng, X. Q., Mai, Y. W. and Qin, Q. H., A micromechanical model for interpenetrating multiphase composites. Computational Materials Science, 28(3), pp Gasik, M. M., Micromechanical modelling of functionally graded materials. Computational Materials Science, 13(13), pp Grassi, M., Zhang, X. and Meo, M., Prediction of stiffness and stresses in zfibre reinforced composite laminates. Composites Part aapplied Science and Manufacturing, 33(12), pp Levy, A. and Papazian, J. M., Tensile properties of short fiberreinforced sic/al composites.2. Finiteelement analysis. Metallurgical Transactions aphysical Metallurgy and Materials Science, 21(2), pp Li, Z. H., Schmauder, S., Wanner, A. and Dong, M., xpressions to characterize the flow behavior of particlereinforced composites based on axisymmetrical unitcell models. Scripta Metallurgica t Materialia, 33(8), pp Qin, Q. H., 2004a. Material properties of piezoelectric composites by BM and homogenization method. Composite structures, 66(1), pp Qin, Q. H., 2004b. MicromechanicsB solution for properties of piezoelectric materials with defects. ngineering analysis with boundary elements, 28(7), pp Qin, Q. H., MicromechanicsBM Analysis for Piezoelectric Composites. Tsinghua Science & Technology, 10(1), pp
12 11. Qin, Q. H., Mai, Y. W. and Yu, S. W., ffective moduli for thermopiezoelectric materials with microcracks. International Journal of Fracture, 91(4), pp Qin, Q. H. and Swain, M.., A micromechanics model of dentin mechanical properties. Biomaterials, 25(20), pp Qin, Q. H. and Yang, Q. S. (2008). MacroMicro Theory on Multifield Coupling Behaivor of Hetereogenous Materials. Beijing, Higher ducation Press and Springer. 14. Qin, Q. H. and Yu, S. W. (1997). Using MoriTanaka method for effective moduli of cracked thermopiezoelectric materials. ICF 9Sydney, Australia Qin, Q. H. and Yu, S. W., ffective moduli of piezoelectric material with microcavities. International Journal of Solids and Structures, 35(36), pp Tvergaard,., Analysis of tensile properties for a whiskerreinforced metal matrix composite. Acta Metallurgica t Materialia, 38(2), pp Wang, Y. and Qin, Q. H., A generalized self consistent model for effective elastic moduli of human dentine. Composites science and technology, 67(7), pp Wang, Y. and Qin, Q. H., Micromechanics for determining effective material properties of dentine composites. Advances in ngineering Mechanics, 1, pp Xu, L. M., Li, C., Fan, H. and Wang, B., lastic property prediction by finite element analysis with random distribution of materials for tungsten/silver composite. Journal of Materials Science, 43(17), pp Yang, Q. S. and Qin, Q. H., Fiber interactions and effective elastoplastic properties of shortfiber composites. Composite structures, 54(4), pp Yang, Q. S. and Qin, Q. H., Modelling the effective elastoplastic properties of unidirectional composites reinforced by fibre bundles under transverse tension and shear loading. Materials Science and ngineering: A, 344(1), pp Yang, Q. S. and Qin, Q. H., Micromechanical analysis of composite materials by BM. ngineering Analysis with Boundary lements, 28(8), pp Yu, S. W. and Qin, Q. H., Damage analysis of thermopiezoelectric properties: Part II. ffective crack model. Theoretical and Applied Fracture Mechanics, 25(3), pp Zahl, D. B. and McMeeking, R. M., The influence of residualstress on the yielding of metal matrix composites. Acta Metallurgica t Materialia, 39(6), pp
CHEMC2410: Materials Science from Microstructures to Properties Composites: basic principles
CHEMC2410: Materials Science from Microstructures to Properties Composites: basic principles Mark Hughes 14 th March 2017 Today s learning outcomes To understand the role of reinforcement, matrix and
More informationQUESTION 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 informationMATERIAL MECHANICS, SE2126 COMPUTER LAB 4 MICRO MECHANICS. E E v E E E E E v E E + + = m f f. f f
MATRIAL MCHANICS, S226 COMPUTR LAB 4 MICRO MCHANICS 2 2 2 f m f f m T m f m f f m v v + + = + PART A SPHRICAL PARTICL INCLUSION Consider a solid granular material, a so called particle composite, shown
More informationFinite element modelling of infinitely wide Angleply 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 Angleply FRP laminates
More informationMESH MODELING OF ANGLEPLY LAMINATED COMPOSITE PLATES FOR DNS AND IPSAP
16 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS MESH MODELING OF ANGLEPLY LAMINATED COMPOSITE PLATES FOR DNS AND IPSAP Wanil Byun*, Seung Jo Kim*, Joris Wismans** *Seoul National University, Republic
More informationA FINITE ELEMENT MODEL TO PREDICT MULTI AXIAL STRESSSTRAIN RESPONSE OF CERAMIC MATRIX COMPOSITES WITH STRAIN INDUCED DAMAGE
A FINITE ELEMENT MODEL TO PREDICT MULTI AXIAL STRESSSTRAIN RESPONSE OF CERAMIC MATRIX COMPOSITES WITH STRAIN INDUCED DAMAGE Daxu Zhang and D. R. Hayhurst School of Mechanical, Aerospace and Civil Engineering,
More informationEnhancing 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
More informationUSING A HOMOGENIZATION PROCEDURE FOR PREDICTION OF MATERIAL PROPERTIES AND THE IMPACT RESPONSE OF UNIDIRECTIONAL COMPOSITE
Volume II: Fatigue, Fracture and Ceramic Matrix Composites USING A HOMOGENIZATION PROCEDURE FOR PREDICTION OF MATERIAL PROPERTIES AND THE IMPACT RESPONSE OF UNIDIRECTIONAL COMPOSITE A. D. Resnyansky and
More informationNonconventional Glass fiber NCF composites with thermoset and thermoplastic matrices. F Talence, France Le Cheylard, France
20 th International Conference on Composite Materials Copenhagen, 1924th July 2015 Nonconventional Glass fiber NCF composites with thermoset and thermoplastic matrices. Thierry Lorriot 1, Jalal El Yagoubi
More informationAnalysis of high loss viscoelastic composites
Analysis of high loss viscoelastic composites by C. P. Chen, Ph.D. and R. S. Lakes, Ph.D. Department of Engineering Physics Engineering Mechanics Program; Biomedical Engineering Department Materials Science
More informationSOME RESEARCH ON FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS
Mechanical Testing and Diagnosis ISSN 2247 9635, 2012 (II), Volume 3, 7985 SOME RESEARCH ON FINITE ELEMENT ANALYSIS OF COMPOSITE MATERIALS Valeriu DULGHERU, Viorel BOSTAN, Marin GUŢU Technical University
More informationISSN: ISO 9001:2008 Certified International Journal of Engineering Science and Innovative Technology (IJESIT) Volume 2, Issue 4, July 2013
Delamination Studies in FibreReinforced 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*Corresponding author: Keywords: Finiteelement analysis; Multiscale modelling; Onset theory; Dilatational strain invariant.
18 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS MICROMECHANICAL MODELLING OF TEST SPECIMENS FOR ONSET OF DILATATIONAL DAMAGE OF POLYMER MATRIX IN COMPOSITE MATERIALS T. D. Tran 1, D. Kelly 1*, G.
More informationA simple planestrain solution for functionally graded multilayered isotropic cylinders
Structural Engineering and Mechanics, Vol. 24, o. 6 (2006) 000000 1 A simple planestrain solution for functionally graded multilayered isotropic cylinders E. Pan Department of Civil Engineering, The
More informationSize Effect of Clay Filler Particles on Mechanical Properties of Pultruded Polymer Composites Under Shear Loading
Minnesota State University, Mankato Cornerstone: A Collection of Scholarly and Creative Works for Minnesota State University, Mankato All Theses, Dissertations, and Other Capstone Projects Theses, Dissertations,
More informationModule 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
More informationFracture Mechanics of Composites with Residual Thermal Stresses
J. A. Nairn Material Science & Engineering, University of Utah, Salt Lake City, Utah 84 Fracture Mechanics of Composites with Residual Thermal Stresses The problem of calculating the energy release rate
More informationVALIDATION 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
More informationMechanics 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 What programs are in PROMAL? Master Menu The master menu screen with five separate applications from
More informationThe Influence of Discontinuities on Elastic and Mechanical Properties of Composite Materials Reinforced with Woven Carbon, Carbonkevlar and Kevlar
The Influence of Discontinuities on Elastic and Mechanical Properties of Composite Materials Reinforced with Woven Carbon, Carbonkevlar and Kevlar DUMITRU BOLCU 1 *, MIHAELA SAVA 2, ALIN DINITA 3, COSMIN
More informationMECHANICS 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:
More informationBIAXIAL 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 6131, Ohsawa, Mitaka,
More informationThermoMechanical Response of Functionally Graded Materials for Extreme Environments
ThermoMechanical Response of Functionally Graded Materials for Extreme Environments Introduction In recent years, functionally graded materials (FGMs) have attracted much interest in a wide range of engineering
More informationStressStrain Behavior
StressStrain Behavior 6.3 A specimen of aluminum having a rectangular cross section 10 mm 1.7 mm (0.4 in. 0.5 in.) is pulled in tension with 35,500 N (8000 lb f ) force, producing only elastic deformation.
More informationMODELING AND ANALYSIS OF HEXAGONAL UNIT CELL FOR THE PREDICTION OF EFFECTIVE THERMAL CONDUCTIVITY
International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 5, May 2017, pp. 651 655, Article ID: IJMET_08_05_071 Available online at http://www.iaeme.com/ijmet/issues.asp?jtype=ijmet&vtype=8&itype=5
More informationEMA 3702 Mechanics & Materials Science (Mechanics of Materials) Chapter 2 Stress & Strain  Axial Loading
MA 3702 Mechanics & Materials Science (Mechanics of Materials) Chapter 2 Stress & Strain  Axial Loading MA 3702 Mechanics & Materials Science Zhe Cheng (2018) 2 Stress & Strain  Axial Loading Statics
More information6.4 A cylindrical specimen of a titanium alloy having an elastic modulus of 107 GPa ( psi) and
6.4 A cylindrical specimen of a titanium alloy having an elastic modulus of 107 GPa (15.5 10 6 psi) and an original diameter of 3.8 mm (0.15 in.) will experience only elastic deformation when a tensile
More informationTHE ROLE OF DELAMINATION IN NOTCHED AND UNNOTCHED TENSILE STRENGTH
THE ROLE OF DELAMINATION IN NOTCHED AND UNNOTCHED TENSILE STRENGTH M. R. Wisnom University of Bristol Advanced Composites Centre for Innovation and Science University Walk, Bristol BS8 1TR, UK M.Wisnom@bristol.ac.uk
More informationEVALUATION OF DAMAGE DEVELOPMENT FOR NCF COMPOSITES WITH A CIRCULAR HOLE BASED ON MULTISCALE ANALYSIS
THE 19 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS EVALUATION OF DAMAGE DEVELOPMENT FOR NCF COMPOSITES WITH A CIRCULAR HOLE BASED ON MULTISCALE ANALYSIS T. Kurashiki 1 *, Y. Matsushima 1, Y. Nakayasu
More informationU.S. South America Workshop. Mechanics and Advanced Materials Research and Education. Rio de Janeiro, Brazil. August 2 6, Steven L.
Computational Modeling of Composite and Functionally Graded Materials U.S. South America Workshop Mechanics and Advanced Materials Research and Education Rio de Janeiro, Brazil August 2 6, 2002 Steven
More informationFINITE 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
More informationEFFECT 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, 522 EFFECT OF LAMINATION ANGLE AND THICKNESS ON ANALYSIS OF COMPOSITE PLATE UNDER THERMO MECHANICAL LOADING Arnab Choudhury 1,
More information3D Compression Molding
Autodesk Simulation Moldflow Insight 2014 3D Compression Molding Executive summary In this work, the simulation results from a program developed for the threedimensional analysis of compression molding
More informationMechanical Behavior of Fullerene Reinforced Fiber Composites with Interface Defects through Homogenization Approach and Finite Element Method
, pp.6782 http://dx.doi.org/1.14257/ijast.215.78.6 Mechanical Behavior of Fullerene Reinforced Fiber Composites with Interface Defects through Homogenization Approach and Finite Element Method P. Prasanthi
More informationPRELIMINARY 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 241002
More informationStress and Displacement Analysis of a Rectangular Plate with Central Elliptical Hole
Stress and Displacement Analysis of a Rectangular Plate with Central Elliptical Hole Dheeraj Gunwant, J. P. Singh mailto.dheerajgunwant@gmail.com, jitenderpal2007@gmail.com, AIT, Rampur Abstract A static
More informationInternational 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, GuangMing ZHOU
More informationA synergistic damage mechanics approach to mechanical response of composite laminates with ply cracks
Article A synergistic damage mechanics approach to mechanical response of composite laminates with ply cracks JOURNAL OF COMPOSITE MATERIALS Journal of Composite Materials 0(0) 7! The Author(s) 0 Reprints
More informationComposite 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
More informationChapter 7. Highlights:
Chapter 7 Highlights: 1. Understand the basic concepts of engineering stress and strain, yield strength, tensile strength, Young's(elastic) modulus, ductility, toughness, resilience, true stress and true
More informationAvailable online at ScienceDirect. Procedia IUTAM 10 (2014 )
Available online at www.sciencedirect.com ScienceDirect Procedia IUTAM 10 (2014 ) 285 293 23rd International Congress of Theoretical and Applied Mechanics NanoMechanics foundations and experimental methodologies
More informationDESIGN OF LAMINATES FOR INPLANE LOADING
DESIGN OF LAMINATES FOR INPLANOADING G. VERCHERY ISMANS 44 avenue F.A. Bartholdi, 72000 Le Mans, France Georges.Verchery@m4x.org SUMMARY This work relates to the design of laminated structures primarily
More informationCHAPTER 3 THE EFFECTS OF FORCES ON MATERIALS
CHAPTER THE EFFECTS OF FORCES ON MATERIALS EXERCISE 1, Page 50 1. A rectangular bar having a crosssectional area of 80 mm has a tensile force of 0 kn applied to it. Determine the stress in the bar. Stress
More informationS. Srinivasan, Technip Offshore, Inc., Houston, TX
9 th ASCE Specialty Conerence on Probabilistic Mechanics and Structural Reliability PROBABILISTIC FAILURE PREDICTION OF FILAMENTWOUND GLASSFIBER Abstract REINFORCED COMPOSITE TUBES UNDER BIAXIAL LOADING
More informationStresses and Displacements in Functionally Graded Materials of SemiInfinite Extent Induced by Rectangular Loadings
Materials 2012, 5, 210226; doi:10.3390/ma5020210 Article OPEN ACCESS materials ISSN 19961944 www.mdpi.com/journal/materials Stresses and Displacements in Functionally Graded Materials of SemiInfinite
More informationThe 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
More informationMaterials and Structures. Indian Institute of Technology Kanpur
Introduction to Composite Materials and Structures Nachiketa Tiwari Indian Institute of Technology Kanpur Lecture 16 Behavior of Unidirectional Composites Lecture Overview Mt Material ilaxes in unidirectional
More informationUNIT I SIMPLE STRESSES AND STRAINS
Subject with Code : SM1(15A01303) Year & Sem: IIB.Tech & ISem SIDDHARTH GROUP OF INSTITUTIONS :: PUTTUR Siddharth Nagar, Narayanavanam Road 517583 QUESTION BANK (DESCRIPTIVE) UNIT I SIMPLE STRESSES
More informationNigerian Journal of Technology, Vol. 26, No. 2, June 2007 Edelugo 37
Nigerian Journal of Technology, Vol. 26, No. 2, June 2007 Edelugo 37 APPLICATION OF THE REISSNERS PLATE THEORY IN THE DELAMINATION ANALYSIS OF A THREEDIMENSIONAL, TIME DEPENDENT, NONLINEAR, UNIDIRECTIONAL
More informationELECTROMECHANICAL RESPONSE OF PIEZOELECTRIC FOAMS
18 TH INTRNATIONAL CONFRNC ON COMPOSIT MATRIALS LCTROMCHANICAL RSPONS OF PIZOLCTRIC FOAMS K.S. Challagulla 1 *, T.A. Venkatesh 1 School of ngineering, Laurentian University, Sudbury, Canada, Department
More informationChapter 2 A Continuum Damage Model Based on Experiments and Numerical Simulations A Review
Chapter 2 A Continuum Damage Model Based on Experiments and Numerical Simulations A Review Michael Brünig Abstract The paper summarizes the author s activities in the field of damage mechanics. In this
More informationTensile behaviour of antisymmetric CFRP composite
Available online at www.sciencedirect.com Procedia Engineering 1 (211) 1865 187 ICM11 Tensile behaviour of antisymmetric CFRP composite K. J. Wong a,b, *, X. J. Gong a, S. Aivazzadeh a, M. N. Tamin b
More informationA multiscale approach for composite materials as multifield continua
Materials Science Forum Vols. 539543 (27) pp. 25512556 online at http://www.scientific.net (27) Trans Tech Publications, Switzerland A multiscale approach for composite materials as multifield continua
More informationAPPLICATION OF A SCALAR STRAINBASED DAMAGE ONSET THEORY TO THE FAILURE OF A COMPLEX COMPOSITE SPECIMEN
28 TH INTERNATIONAL CONGRESS OF THE AERONAUTICAL SCIENCES APPLICATION OF A SCALAR STRAINBASED DAMAGE ONSET THEORY TO THE FAILURE OF A COMPLEX COMPOSITE SPECIMEN Tuyen Tran*, Dan Simkins**, Shen Hin Lim*,
More informationModeling of Interphases in FiberReinforced Composites Under Transverse Loading Using the Boundary Element Method
Y. J. Liu 1 Assistant Professor, email: Yijun.Liu@uc.edu Mem. ASME N. Xu Graduate Student Department of Mechanical, Industrial, and Nuclear Engineering, P.O. Box 210072, University of Cincinnati, Cincinnati,
More informationLaboratory 4 Bending Test of Materials
Department of Materials and Metallurgical Engineering Bangladesh University of Engineering Technology, Dhaka MME 222 Materials Testing Sessional.50 Credits Laboratory 4 Bending Test of Materials. Objective
More informationNumerical modelling of induced tensile stresses in rock in response to impact loading
Numerical modelling of induced tensile stresses in rock in response to impact loading M.T. Mnisi, D.P. Roberts and J.S. Kuijpers Council for Scientific and Industrial Research (CSIR): Natural Resources
More informationEXPERIMENTAL AND NUMERICAL STUDY OF THE ENERGY ABSORPTION CAPACITY OF PULTRUDED COMPOSITE TUBES
EXPERIMENTAL AND NUMERICAL STUDY OF THE ENERGY ABSORPTION CAPACITY OF PULTRUDED COMPOSITE TUBES D. Kakogiannis 1, D. Van Hemelrijck 1, J. Wastiels 1, S. Palanivelu 2, W. Van Paepegem 2, K. De Wolf 3, J.
More informationStudies of Bimaterial Interface Fracture with Peridynamics Fang Wang 1, Lisheng Liu 2, *, Qiwen Liu 1, Zhenyu Zhang 1, Lin Su 1 & Dan Xue 1
International Power, Electronics and Materials Engineering Conference (IPEMEC 2015) Studies of Bimaterial Interface Fracture with Peridynamics Fang Wang 1, Lisheng Liu 2, *, Qiwen Liu 1, Zhenyu Zhang 1,
More informationFrequency 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.1115 Frequency Response of Composite Laminates at Various Boundary Conditions
More informationThe Accuracy of Characteristic Length Method on Failure Load Prediction of Composite Pinned Joints
, June 30  July 2, 2010, London, U.K. The Accuracy of Characteristic Length Method on Failure Load Prediction of Composite Pinned Joints O. Aluko, and Q. Mazumder Abstract An analytical model was developed
More informationLAMINATED COMPOSITE PLATES
LAMINATED COMPOSITE PLATES David Roylance Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge, MA 02139 February 10, 2000 Introduction This document is intended
More informationMicromeso draping modelling of noncrimp fabrics
Micromeso draping modelling of noncrimp fabrics Oleksandr Vorobiov 1, Dr. Th. Bischoff 1, Dr. A. Tulke 1 1 FTA Forschungsgesellschaft für Textiltechnik mbh 1 Introduction Noncrimp fabrics (NCFs) are
More informationME 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 informationPassive Damping Characteristics of Carbon Epoxy Composite Plates
Journal of aterials Science and Engineering A 6 (12) (2016) 3542 doi: 10.17265/21616213/2016.12.005 D DAVID PUBLISHIG Passive Damping Characteristics of Carbon Epoxy Composite Plates Dileep Kumar K
More informationMechanics 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
More informationDon Robbins, Andrew Morrison, Rick Dalgarno Autodesk, Inc., Laramie, Wyoming. Abstract
PROGRESSIVE FAILURE SIMULATION OF ASMANUFACTURED SHORT FIBER FILLED INJECTION MOLDED PARTS: VALIDATION FOR COMPLEX GEOMETRIES AND COMBINED LOAD CONDITIONS Don Robbins, Andrew Morrison, Rick Dalgarno Autodesk,
More informationDebonding process in composites using BEM
Boundary Elements XXVII 331 Debonding process in composites using BEM P. Prochazka & M. Valek Czech Technical University, Prague, Czech Republic Abstract The paper deals with the debonding fibermatrix
More informationID1160 REALTIME DETECTION AND EXPLICIT FINITE ELEMENT SIMULATION OF DELAMINATION IN COMPOSITE LAMINATES UNDER IMPACT LOADING
ID116 REALTIME 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
More informationCellular solid structures with unbounded thermal expansion. Roderic Lakes. Journal of Materials Science Letters, 15, (1996).
1 Cellular solid structures with unbounded thermal expansion Roderic Lakes Journal of Materials Science Letters, 15, 475477 (1996). Abstract Material microstructures are presented which can exhibit coefficients
More informationMultiscale modeling of failure in ABS materials
Institute of Mechanics Multiscale modeling of failure in ABS materials Martin Helbig, Thomas Seelig 15. International Conference on Deformation, Yield and Fracture of Polymers Kerkrade, April 2012 Institute
More informationEXPERIMENTAL STUDY ON YOUNG S MODULUS E OF A POLYMER COMPOSITE REINFORCED BY NANO TITANIUM DIOXIDE PARTICLES
Vietnam Journal of Mechanics, VAST, Vol. 34, No. (202), pp. 9 25 EXPERIMENTAL STUDY ON YOUNG S MODULUS E OF A POLYMER COMPOSITE REINFORCED BY NANO TITANIUM DIOXIDE PARTICLES Nguyen Dinh Duc, Dinh Khac
More informationTHREE 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
More informationEXPERIMENTAL CHARACTERIZATION AND COHESIVE LAWS FOR DELAMINATION OF OFFAXIS GFRP LAMINATES
20 th International Conference on Composite Materials Copenhagen, 1924 th July 2015 EXPERIMENTAL CHARACTERIZATION AND COHESIVE LAWS FOR DELAMINATION OF OFFAXIS GFRP LAMINATES Esben Lindgaard 1 and Brian
More informationInterlaminar fracture characterization in composite materials by using acoustic emission
5th International Symposium on NDT in Aerospace, 1315th November 2013, Singapore Interlaminar fracture characterization in composite materials by using acoustic emission Ian SILVERSIDES 1, Ahmed MASLOUHI
More informationAn 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,
More informationStrainBased Design Model for FRPConfined Concrete Columns
SP230 57 StrainBased Design Model for FRPConfined Concrete Columns by N. Saenz and C.P. Pantelides Synopsis: A constitutive strainbased confinement model is developed herein for circular concrete columns
More informationEVALUATION OF THERMAL TRANSPORT PROPERTIES USING A MICROCRACKING MODEL FOR WOVEN COMPOSITE LAMINATES
EVALUATION OF THERMAL TRANSPORT PROPERTIES USING A MICROCRACKING MODEL FOR WOVEN COMPOSITE LAMINATES C. Luo and P. E. DesJardin* Department of Mechanical and Aerospace Engineering Universit at Buffalo,
More informationCOMPUTER AIDED DESIGN IN CASE OF THE LAMINATED COMPOSITE MATERIALS
6 th International Conference Computational Mechanics and Virtual Engineering COMEC 15 1516 October 15, Braşov, Romania COMPUER AIDED DESIGN IN CASE OF HE LAMINAED COMPOSIE MAERIALS Camelia Cerbu ransilvania
More informationFlexible Pavement Stress Analysis
Flexible Pavement Stress Analysis Dr. Antonis Michael Frederick University Notes Courtesy of Dr. Christos Drakos, University of Florida Need to predict & understand stress/strain distribution within the
More informationOutline. TensileTest Specimen and Machine. StressStrain Curve. Review of Mechanical Properties. Mechanical Behaviour
TensileTest Specimen and Machine Review of Mechanical Properties Outline Tensile test True stress  true strain (flow curve) mechanical properties:  Resilience  Ductility  Toughness  Hardness A standard
More informationDesign of a fastener based on negative Poisson's ratio foam adapted from
1 Design of a fastener based on negative Poisson's ratio foam adapted from Choi, J. B. and Lakes, R. S., "Design of a fastener based on negative Poisson's ratio foam", Cellular Polymers, 10, 205212 (1991).
More informationGeneric 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 1292011 Generic
More informationREPRESENTING MATRIX CRACKS THROUGH DECOMPOSITION OF THE DEFORMATION GRADIENT TENSOR IN CONTINUUM DAMAGE MECHANICS METHODS
20 th International Conference on Composite Materials Copenhagen, 1924 th July 2015 REPRESENTING MATRIX CRACKS THROUGH DECOMPOSITION OF THE DEFORMATION GRADIENT TENSOR IN CONTINUUM DAMAGE MECHANICS METHODS
More informationGraduate School of Engineering, Kyoto University, Kyoto daigakukatsura, Nishikyoku, Kyoto, Japan.
On relationship between contact surface rigidity and harmonic generation behavior in composite materials with mechanical nonlinearity at fibermatrix interface (Singapore November 2017) N. Matsuda, K.
More informationFREE VIBRATION OF THERMALLY PRE/POSTBUCKLED CIRCULAR THIN PLATES EMBEDDED WITH SHAPE MEMORY ALLOY FIBERS
Journal of Thermal Stresses, 33: 79 96, 2010 Copyright Taylor & Francis Group, LLC ISSN: 01495739 print/1521074x online DOI: 10.1080/01495730903409235 FREE VIBRATION OF THERMALLY PRE/POSTBUCKLED CIRCULAR
More informationAnisotropic modeling of short fibers reinforced thermoplastics materials with LSDYNA
Anisotropic modeling of short fibers reinforced thermoplastics materials with LSDYNA Alexandre Hatt 1 1 Faurecia Automotive Seating, Simplified Limited Liability Company 1 Abstract / Summary Polymer thermoplastics
More informationMalaysia Phone: ; Fax:
International Conference on Mechanical Engineering Research (ICMER013), 13 July 013 Bukit Gambang Resort City, Kuantan, Pahang, Malaysia Organized By Faculty of Mechanical Engineering, Universiti Malaysia
More informationA CRITERION OF TENSILE FAILURE FOR HYPERELASTIC MATERIALS AND ITS APPLICATION TO VISCOELASTICVISCOPLASTIC MATERIALS
MTS ADHESIVES PROGRAMME 19961999 PERFORMANCE OF ADHESIVE JOINTS Project: PAJ1; Failure Criteria and their Application to ViscoElastic/ViscoPlastic Materials Report 2 A CRITERION OF TENSILE FAILURE FOR
More informationSANDWICH COMPOSITE BEAMS for STRUCTURAL APPLICATIONS
SANDWICH COMPOSITE BEAMS for STRUCTURAL APPLICATIONS de Aguiar, José M., josemaguiar@gmail.com Faculdade de Tecnologia de São Paulo, FATECSP Centro Estadual de Educação Tecnológica Paula Souza. CEETEPS
More informationPLAIN WEAVE REINFORCEMENT IN C/C COMPOSITES VISUALISED IN 3D FOR ELASTIC PARAMETRES
THE 19 TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS PLAIN WEAVE REINFORCEMENT IN C/C COMPOSITES VISUALISED IN 3D FOR ELASTIC PARAMETRES P. Tesinova Technical University of Liberec, Faculty of Textile
More informationEffect of Machining Parameters on Milled Natural Fiber Reinforced Plastic Composites
Journal of Advanced Mechanical Engineering (2013) doi:10.7726/jame.2013.1001 Research Article Effect of Machining Parameters on Milled Natural Fiber Reinforced Plastic Composites G Dilli Babu 1*, K. Sivaji
More informationNumerical investigation on the position of holes for reducing stress concentration in composite plates with bolted and riveted joints
THEORETICAL & APPLIED MECHANICS LETTERS 1, 041005 (2011) Numerical investigation on the position of holes for reducing stress concentration in composite plates with bolted and riveted joints M. R. Khoshravan,
More informationUniversity of Bristol  Explore Bristol Research. Early version, also known as preprint
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), 12291245. DOI: 10.1177/0021998305057432
More informationMECHANICAL CHARACTERISTICS OF CARBON FIBER YACHT MASTS
MECHANICAL CHARACTERISTICS OF CARBON FIBER YACHT MASTS This paper provides a preliminary stress analysis of a carbon reinforced layered cylinder such as would be found in a yacht mast. The cylinder is
More informationMAXIMUM ENTROPYBASED UNCERTAINTY MODELING AT THE FINITE ELEMENT LEVEL. Pengchao Song and Marc P. Mignolet
MAXIMUM ENTROPYBASED UNCERTAINTY MODELING AT THE FINITE ELEMENT LEVEL Pengchao Song and Marc P. Mignolet SEMTE, Faculties of Mechanical and Aerospace Engineering, Arizona State University, 51 E. Tyler
More informationSIMULATION OF PLANE STRAIN FIBER COMPOSITE PLATES IN BENDING THROUGH A BEM/ACA/HM FORMULATION
8 th GRACM International Congress on Computational Mechanics Volos, 12 July 15 July 2015 SIMULATION OF PLANE STRAIN FIBER COMPOSITE PLATES IN BENDING THROUGH A BEM/ACA/HM FORMULATION Theodore V. Gortsas
More informationProgram: Recent Trends
The SNL/MSU/DOE Fatigue Program: Recent Trends John Mandell Montana State University 2012 SNL Blade Workshop May 30  June 1, 2012 Outline Overview of MSU Fatigue Program on Wind Blade Materials: Testing
More informationChapter 3. Load and Stress Analysis
Chapter 3 Load and Stress Analysis 2 Shear Force and Bending Moments in Beams Internal shear force V & bending moment M must ensure equilibrium Fig. 3 2 Sign Conventions for Bending and Shear Fig. 3 3
More informationLAMINATION THEORY FOR THE STRENGTH OF FIBER COMPOSITE MATERIALS
XXII. LAMINATION THEORY FOR THE STRENGTH OF FIBER COMPOSITE MATERIALS Introduction The lamination theory for the elastic stiffness of fiber composite materials is the backbone of the entire field, it holds
More information