Microscopic temperature field prediction during adiabatic loading using gradient extended crystal plasticity
Journal article, 2013

The problem of interest is grain-size-dependent hardening in polycrystalline metals. We study the multiphysics problem of heat conduction coupled to gradient crystal plasticity and investigate the temperature field on the grain level for adiabatic loading. The underlying equations for the thermomechanical coupling are derived for a crystal plasticity model with gradient hardening. The influence of the temperature field on misorientation of the slip directions between adjacent grains is investigated. Additionally, the influence of the loading velocity and the size of the grain structure are examined. Numerical simulations are presented and analyzed.

Author

Swantje Bargmann

Helmholtz-Zentrum Geesthacht - Zentrum für Material- und Küstenforschung GmbH

Magnus Ekh

Chalmers, Applied Mechanics, Material and Computational Mechanics

International Journal of Solids and Structures

0020-7683 (ISSN)

Vol. 50 6 899-906

Subject Categories

Mechanical Engineering

DOI

10.1016/j.ijsolstr.2012.11.010

More information

Created

10/8/2017