Numerical evaluation of the ductile fracture for AA6101-T4 and AISI 4340 alloys using the Lemaitre and Gurson models
Leonel L. Delgado-Morales,
Lucival Malcher,
Tiago R. Alves de Souza
Abstract:This paper provides a numerical assessment of the ductile fracture of the AA6101 and AISI 4340 alloys using the Lemaitre and Gurson models.The simulations were carried out to verify the evolution of the accumulated plastic strain at fracture, assuming the high range of the triaxiality ratio, applying monotonic tensile loads on smooth and notched cylindrical specimens. The numerical strategy was structured for the Lemaitre and Gurson models, from establishing a non-linear system of equations using an implicit i… Show more
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