A comparison of two frameworks for kinematic hardening in hyperelasto-plasticity
Conference contribution, 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.

Finite strains

Hyperelasto-plasticity

Kinematic hardening

Author

Knut Andreas Meyer

Chalmers, Applied Mechanics, Material and Computational Mechanics

Magnus Ekh

Chalmers, Applied Mechanics, Material and Computational Mechanics

XIV International Conference on Computational Plasticity (COMPLAS 2017)

342-350

Subject Categories

Applied Mechanics

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Areas of Advance

Materials Science

ISBN

978-84-946909-6-9

More information

Created

10/7/2017