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Microscopic temperature field prediction during adiabatic loading using gradient extended crystal plasticity
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- Bargmann, Swantje, 1980 (author)
- Helmholtz Zentrum,Helmholtz Center
-
- Ekh, Magnus, 1969 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- (creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
- In: International Journal of Solids and Structures. - : Elsevier BV. - 0020-7683. ; 50:6, s. 899-906
- Journal article (peer-reviewed)
Abstract
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- 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.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
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- art (subject category)
- ref (subject category)
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