Abstract
The mechanisms of in-plane shear deformation in a cross-ply glass fiber-epoxy laminate were studied through a combination of experiments and simulations. Shear deformation parallel and perpendicular to the fibers led to very different deformation and fracture patterns. Deformation was localized in a matrix shear band parallel to the fibers in the former, while fiber rotation and widespread plastic deformation in the matrix were dominant in the latter. The differences in the mechanical response between both orientations increased with the applied strain and it was shown that the cross-ply laminate response was given by the averaged contribution of both. The relevance of this behavior for the development of continuum damage mechanics models is noted.
Similar content being viewed by others
References
Abaqus (2008) Users’ manual, version 6.7. ABAQUS, Inc.
Adams DF, Lewis EQ (1994) Current status of composite material shear test methods. SAMPE J 31: 32–41
Adams DF, Walrath DE (1987) Further developments of the iosipescu shear test method. Exp Mech 27: 113–119
Adams DO, Moriarty JM, Gallegos AM (2007) The V-notched rail shear test. J Compos Mater 41: 281–297
Camanho PP, Maimí P, Dávila CG (2007) Prediction of size effects in notched laminates using continuum damage mechanics. Compos Sci Technol 67: 2715–2727
Chamis CC, Sinclair JH (1977) Ten-deg off-axis test for shear properties in fiber composites. Exp Mech 17: 339–346
D7078 (2005) D7078 standard test method for shear properties of composite materials by V-Notched rail shear method. ASTM International
der Meer FPV, Sluys LJ (2008) Continuum models for the analysis of progressive failure in composite laminates (to appear)
González C, LLorca J (2006) Multiscale modeling of fracture in fiber-reinforced composites. Acta Mater 54: 4171–4181
González C, LLorca J (2007) Mechanical behavior of unidirectional fiber-reinforced polymers under transverse compression: microscopic mechanisms and modeling. Compos Sci Technol 67: 2795–2806
González C, Segurado J, LLorca J (2004) Numerical simulation of elasto-plastic deformation of composites: evolution of stress microfields and implications for homogenization models. J Mech Phys Solids 52: 1573–1593
Hinton MJ, Soden PD, Kaddour AS (2004) Failure criteria in fiber-reinforced polymer composites: the World Wide Failure exercise. Elsevier, Amsterdam
Ladevéze P, Lubineau G (2001) On a damage mesomodel for laminates: micro–meso relationships, possibilities and limits. Compos Sci Technol 61: 2149–2158
Lafarie-Frenot MC, Touchard F (1994) Comparative in-plane shear behaviour of long-carbon-fibre composites with thermoset and thermoplastic matrices. Compos Sci Technol 52: 417–425
Maimí P, Camanho PP, Mayugo JA, Dávila CG (2007) A continuum damage model for composite laminates: Part I constitutive model. Mech Mater 39: 897–908
Paepegem WV, Baere ID, Degrieck J (2006) Modelling the non-linear shear stress–strain response of glass fibre-reinforced composites. Part I: experimental results. Compos Sci Technol 66: 1455–1464
Puck A, Schürmann H (1998) Failure analysis of FRP laminates by means of physically based phenomenological models. Compos Sci Technol 58: 1045–1067
Quinson R, Perez J, Rink M, Pavan A (1997) Yield criteria for amorphous glassy polymers. J Mater Sci 32: 1371–1379
Segurado J, LLorca J (2002) A numerical approximation to the elastic properties of sphere-reinforced composites. J Mech Phys Solids 50: 2107–2121
Segurado J, LLorca J (2005) A computational micromechanics study of the effect of interface decohesion on the mechanical behavior of composites. Acta Mater 53: 4931–4942
Segurado J, LLorca J (2006) Computational micromechanics of composites: the effect of particle spatial distribution. Mech Mater 38: 873–883
Song S, Waas AM, Shahwan KW, Xiao X, Faruque O (2007) Briaded textile composites under compressive loads: modeling the response, strength and degradation. Compos Sci Technol 67: 3059–3070
Totry E, González C, LLorca J (2008a) Failure locus of fiber-reinforced composites under transverse compression and out-of-plane shear. Compos Sci Technol 68: 829–839
Totry E, González C, LLorca J (2008b) Influence of the loading path on the strength of fiber-reinforced composites subjected to transverse compression and shear. Int J Solids Struct 45: 1663–1675
Totry E, González C, LLorca J (2008c) Prediction of the failure locus of c/peek composites under transverse compression and longitudinal shear through computational micromechanics. Compos Sci Technol 68: 3128–3136
Yerramalli CS, Waas AM (2002) In situ matrix shear response using torsional test data of fiber reinforced polymer composites. J Eng Mater Technol 124: 152–159
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Totry, E., González, C., LLorca, J. et al. Mechanisms of shear deformation in fiber-reinforced polymers: experiments and simulations. Int J Fract 158, 197–209 (2009). https://doi.org/10.1007/s10704-009-9353-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10704-009-9353-4