Analysis of surface roughening in AA6111 automotive sheet

被引：73
|
作者：
Wu, PD [1 ]
Lloyd, DJ [1 ]
机构：
[1] Alcan Int Ltd, Kingston Res & Dev Ctr, Kingston, ON K7L 5L9, Canada
来源：
ACTA MATERIALIA | 2004年 / 52卷 / 07期
关键词：
aluminum alloys; finite element analysis; EBSD; surface; crystal plasticity;
D O I：
10.1016/j.actamat.2003.12.039
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The finite element method is used to numerically simulate the topographic development in an aluminium sheet, AA6111, under stretching. The measured electron backscatter diffraction (EBSD) data are directly incorporated into the finite element model and the constitutive response at an integration point is described by the single crystal plasticity theory. The effect on surface roughening of sample geometry. strain rate sensitivity, work hardening, imposed deformation path, as well as the EBSD step size, spatial orientation distribution and inhomogeneous deformation within individual grains are discussed. It is Concluded that surface roughening is controlled by the spatial distribution of grain orientations through the thickness of the specimen. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：1785 / 1798
页数：14
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