A COMPARISON OF TWO FRAMEWORKS FOR KINEMATIC HARDENING IN HYPERELASTO-PLASTICITY

Presentations to the XIV International Conference on Computational Plasticity (COMPLAS 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.

KM K. Meyer

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| colspan="1" | '''Figure 1:''' Configurations and deformation gradients
 
| colspan="1" | '''Figure 1:''' Configurations and deformation gradients
 
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Revision as of 16:44, 15 May 2017

Figure 1: Configurations and deformation gradients
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Published on 20/05/17
Submitted on 12/05/17

Licence: Other

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Engineering, Multidisciplinary

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