Abstract
This work aims to study the crack behavior of 304L under large scale yielding. An elasto-viscoplastic Chaboche model with a nonlinear kinematic hardening has been chosen. The identification of the law parameters was performed by using an experimental databases issue from uniaxial tests. In addition, the chosen model is validated with TMF tests. Then, a 2D FEA of a tubular specimen is performed with ABAQUS® in order to study the crack growth by using the node release technique. This crack growth rate is estimated by using an energy criteria based on the calculation of the J-integral at different crack lengths.
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