Application of a Local Continuum Damage Model to Porous TRIP-Steel

Abstract:

Aim of this study is to describe the ductile damage of metastable austenitic steels which show TRansformation Induced Plasticity (TRIP). Therefore, a criterion for the austenite to martensite transformation, the caused additional hardening and evolution equations for the TRIP-strain are incorporated into the damage model of Rousselier. As a first approach, the model is calibrated against unit cell simulations of the porous material for different stress triaxialities.

• Periodical: Applied Mechanics and Materials (Volume 784)
• Pages: 484-491
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.784.484
• Online since: August 2015
• Authors: Andreas Seupel*, Meinhard Kuna
• Keywords: Ductile Damage, Martensitic Phase Transformation, Triaxiality, TRIP-Steel, Unit Cell Model

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