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Microscopic temperature field prediction during adiabatic loading using gradient extended crystal plasticity

Swantje Bargmann ; Magnus Ekh (Institutionen för tillämpad mekanik, Material- och beräkningsmekanik)
International Journal of Solids and Structures (0020-7683). Vol. 50 (2013), 6, p. 899-906.
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2013-03-19. Senast ändrad 2017-01-27.
CPL Pubid: 174799

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Material- och beräkningsmekanik (2005-2017)

Ämnesområden

Maskinteknik

Chalmers infrastruktur