Local Approach : Numerical Simulations of Creep and Creep-Fatigue Crack Initiation and Crack Growth in 316L SPH Austenitic Stainless Steel

D. Poquillon, M.-T. Cabrillat, A. Pineau
1996 Journal de Physique IV : Proceedings  
This study deals with the evaluation of local approach to assess the mechanical integrity of cracked components submitted to cyclic and steady load at elevated temperature. In this approach, a fracture criteeon based on calculated intergranular damage ahead of the crack tip is introduce to simulate both crack initiation and crack propagation in 316 L type austenitic stainless steel. This numerical method, based on f~t e element computations is fustly described. Then numerical results are
more » ... results are compared with sets of experimental data for two specimen geometries during load controlled tests. A damage criterion in good agreement with previous studies leads to promising load-displacement response, crack initiation and crack growth curves.
doi:10.1051/jp4:1996642 fatcat:khiokcjp2ffitdtbtmxywiyn4i