A variational material model for transformation-induced plasticity in polycrystalline steels

Journal of the Mechanical Behavior of Materials

Hackl Klaus¹  Junker Philipp¹  Waimann Johanna¹ 

[1] Institute of Mechanics of Materials, Ruhr-Universität Bochum, Germany;

关键词: hardening;    phase transformation;    plasticity;    polycrystalline material;    trip steel;    variational modeling;   

DOI  :  10.1515/jmbm-2015-0022

来源: DOAJ

【 摘 要 】

This work presents a variational material model for transformation-induced plasticity in steels. We will use the principle of the minimum of the dissipation potential to develop a coupled material model for plastic deformations and phase transformations that simultaneously accounts for the hardening effects that play an important role. We will use a polycrystalline approach and introduce a combined Voigt/Reuß bound and a coupled ansatz for the dissipation functional to model the simultaneous effects of plastic deformations and phase transformations. Finally, we will present the first numerical results for a tension/compression test.

【 授权许可】

Unknown