Inverse finite element approach and its application in sheet metal forming

被引：45
|
作者：
Lan, J [1 ]
Dong, XH
Li, ZG
机构：
[1] Wuhan Univ Technol, Sch Mat Sci & Engn, Wuhan 430070, Peoples R China
[2] State Key Lab Plast Forming Simulat & Die & Mould, Wuhan 430074, Peoples R China
来源：
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2005年 / 170卷 / 03期
关键词：
sheet metal forming; finite element method; ideal forming;
D O I：
10.1016/j.jmatprotec.2005.06.043
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The inverse finite element approach (IFEA) was derived from ideal forming to predict the development blank of sheet metal and the thickness strain distribution according to the geometry of final product. The flange portion of stamping product under blank-holder is a free parameter that is mostly dependent on the shape of the initial flat blank. Based on the IFEA, this paper proposed a node relocation technique to estimate the influence of flange shape and evaluate the final geometry and thickness strain distribution from the prescribed flat blank. The applications of the IFEA cover the backward and forward evaluations: from given product to initial blank and from given initial blank to final product. Those applications make the design of sheet metal forming easy and fast. A door-like product experiment confirmed that the precision of the IFEA satisfied the manufacturing requirement. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：624 / 631
页数：8
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