Microscopic temperature field prediction during adiabatic loading using gradient extended crystal plasticity
Artikel i vetenskaplig tidskrift, 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.

Författare

Swantje Bargmann

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

Magnus Ekh

Chalmers, Tillämpad mekanik, Material- och beräkningsmekanik

International Journal of Solids and Structures

0020-7683 (ISSN)

Vol. 50 6 899-906

Ämneskategorier

Maskinteknik

DOI

10.1016/j.ijsolstr.2012.11.010

Mer information

Skapat

2017-10-08