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Numerical investigation of crack growth in AISI type 316LN stainless steel weld joint using GTN damage model
Published in Inderscience Enterprises Ltd.
Volume: 13
Issue: 1-3
Pages: 125 - 143
Ductile crack growth in austenitic 316LN stainless steel weld joint has been studied using FEA simulations with Gurson-Tvergaard-Needleman (GTN) damage model. The material specific GTN damage parameters are assessed and calibrated based on coupled experimental and numerical simulations for tensile and compact tension specimens. The influence of initial crack tip at various locations across the weld thickness has been analysed using CT geometry. The simulated results reveal that the crack propagates along the initial crack line for centrally located welds and deviates from the crack line for interfacial welds. The crack growth path for all cases is explained with damage parameters like equivalent plastic strain and void volume fraction. Copyright © 2019 Inderscience Enterprises Ltd.
About the journal
JournalInternational Journal of Materials and Structural Integrity
PublisherInderscience Enterprises Ltd.
Open AccessNo