A closed form technique to predict springback in creep age-forming

被引：102

作者：

Jeunechamps, PP

Ho, KC

Lin, J ^{[1
]}

Ponthot, JP

Dean, TA

机构：

[1] Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England

[2] Univ Liege, ASMA LTAS, MCT, B-4000 Liege, Belgium

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2006年 / 48卷 / 06期

关键词：

creep age-forming; springback; double curvature bending; creep-ageing constitutive equations;

D O I：

10.1016/j.ijmecsci.2006.01.005

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An efficient numerical method has been developed and programmed to predict springback in creep age-forming (CAF) of alummium shell components. Physically based unified creep-ageing constitutive equations determined for AA7010 at 150 degrees C are used to evaluate age-hardening and creep deformation in CAF processes. The studies are mainly concentrated on the pure bending of aluminium plates. Effects of plate thickness, single and double curvature bending, ageing time and stress relaxation features on springback are investigated. It is shown that the proposed algorithm can predict springback accurately and gives a relationship between geometrical data and springback. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：621 / 629

页数：9

共 23 条

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