Using incremental forming to calibrate a void nucleation model for automotive aluminum sheet alloys

被引：69
作者：
Lievers, WB
Pilkey, AK
Lloyd, DJ
机构：
[1] Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada
[2] Alcan Int Ltd, Kingston Res & Dev Ctr, Kingston, ON K7L 5L9, Canada
[3] Ctr Automot Mat & Mfg, Kingston, ON K7L 5L9, Canada
来源：
ACTA MATERIALIA | 2004年 / 52卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
automotive aluminum; nucleation; gurson; void damage; incremental forming;
D O I：
10.1016/j.actamat.2004.03.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A novel method for the quantification of void nucleation rates in sheet material is presented. An incremental sheet forming process is employed to create large regions of homogeneous deformation, such that material density changes can then be used to quantify the evolution of void volume fraction with applied strain. This technique is employed to calibrate the void nucleation behaviour of three automotive aluminum sheet alloys (AA5182, AA5754 and AA611 1) for incorporation into finite element method models which employ the Gurson-Tvergaard-Needleman (GTN) constitutive softening equations. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：3001 / 3007
页数：7
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