Helm, D.D.Helm2022-03-042022-03-042010https://publica.fraunhofer.de/handle/publica/22261210.3139/146.110369In the theory of metal plasticity, the energy storage phenomena during plastic work have been intensively debated in recent decades. Experimental results show that there is a significant amount of energy storage, which depends strongly on the process history. However, modeling of this important phenomenon is often treated in a rough manner by introducing a heat source into the heat conduction equation. In contrast to such an approach, the use of a thermomechanical framework allows for the coupling of thermal and mechanical phenomena into a comprehensive theory. Different approaches for the additional stored energy function are proposed and discussed in the context of a finite strain theory. By using the suggested approach, the observed thermomechanical coupling phenomena of Chrysochoos et al. on aluminum 2024 and a carbon steel XC 38 are well representable.enmetal plasticity620669journal article