TY - JOUR
T1 - Effect of in-plane deformation on the cohesive failure of heterogeneous adhesives
AU - Aragón, Alejandro M.
AU - Soghrati, Soheil
AU - Geubelle, Philippe H.
N1 - Funding Information:
The authors thank the support of the Industrial Research Institute and the National Science Foundation . Additional support was provided by the Air Force Office of Scientific Research MURI (Grant # FA9550-09-1-0686 ). Discussions with Dr. Mohan Kulkarni from ExxonMobil Research and Engineering are also gratefully acknowledged.
PY - 2013/7
Y1 - 2013/7
N2 - Abstract The effect of in-plane deformations on the failure response of heterogeneous adhesives with a second phase of spherical elastic particles is investigated numerically using a 3D cohesive framework. The methodology includes a new interface-enriched generalized finite element scheme for the solution of structural problems with weak discontinuities, allowing for the efficient and accurate prediction of the stress and displacement fields in the adhesive based on finite element meshes that do not conform to the heterogeneities. A rate-dependent isotropic failure model is adopted to capture the failure in the matrix, while the stiff inclusions are assumed to be linearly elastic. Cohesive failure envelopes resulting from the micro-to-macro analysis are extracted for a wide variety of failure mode conditions. A study of 1611the impact of in-plane tensile and shear strains on the macroscopic failure response under tensile (mode I) loading is also presented.
AB - Abstract The effect of in-plane deformations on the failure response of heterogeneous adhesives with a second phase of spherical elastic particles is investigated numerically using a 3D cohesive framework. The methodology includes a new interface-enriched generalized finite element scheme for the solution of structural problems with weak discontinuities, allowing for the efficient and accurate prediction of the stress and displacement fields in the adhesive based on finite element meshes that do not conform to the heterogeneities. A rate-dependent isotropic failure model is adopted to capture the failure in the matrix, while the stiff inclusions are assumed to be linearly elastic. Cohesive failure envelopes resulting from the micro-to-macro analysis are extracted for a wide variety of failure mode conditions. A study of 1611the impact of in-plane tensile and shear strains on the macroscopic failure response under tensile (mode I) loading is also presented.
KW - Keywords Cohesive modeling Micro-to-macro analysis Generalized/extended finite element method Heterogeneous adhesives Homogenization Viscous damage model
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U2 - 10.1016/j.jmps.2013.03.003
DO - 10.1016/j.jmps.2013.03.003
M3 - Article
AN - SCOPUS:84877576796
SN - 0022-5096
VL - 61
SP - 1600
EP - 1611
JO - Journal of the Mechanics and Physics of Solids
JF - Journal of the Mechanics and Physics of Solids
IS - 7
ER -