A comparison of two frameworks for kinematic hardening in hyperelasto-plasticity
Paper in proceedings, 2017

In this work we compare two frameworks for thermodynamically consistent hyperelasto-plasticity with kinematic hardening. The first was formulated by Dettmer and Reese (2004), inspired by Lion (2000), and has been used to model sheet metal forming. The second, formulated by Wallin et al. (2003), has been used to model large shear strains and cyclic ratcheting behavior of pearlitic steel (Johansson et al. 2006). In this paper we show that these frameworks can result in equivalent models for certain choices of free energies. Furthermore, it is shown that the choices of free energy found in the literature only result in minor differences. These differences are discussed theoretically and investigated numerically.

Kinematic hardening

Finite strains

Hyperelasto-plasticity

Author

Knut Andreas Meyer

Chalmers, Applied Mechanics, Material and Computational Mechanics

Magnus Ekh

Chalmers, Applied Mechanics, Material and Computational Mechanics

Proceedings of the 14th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2017

342-350

14th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2017
Barcelona, Spain,

Subject Categories

Applied Mechanics

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Areas of Advance

Materials Science

More information

Latest update

2/18/2021