Forming forces in single point incremental forming: prediction by finite element simulations, validation and sensitivity

被引：89

作者：

Henrard, C. ^{[1
]}

Bouffioux, C. ^{[1
]}

Eyckens, P. ^{[2
]}

Sol, H. ^{[3
]}

Duflou, J. R. ^{[4
]}

Van Houtte, P. ^{[2
]}

Van Bael, A. ^{[2
,5
]}

Duchene, L. ^{[1
]}

Habraken, A. M. ^{[1
]}

机构：

[1] Univ Liege, ArGEnCo, B-4000 Liege, Belgium

[2] Katholieke Univ Leuven, MTM, B-3001 Heverlee, Belgium

[3] Vrije Univ Brussel, MEMC, B-1050 Brussels, Belgium

[4] Katholieke Univ Leuven, PMA, B-3001 Heverlee, Belgium

[5] KHLim Limburg Catholic Univ Coll, B-3590 Diepenbeek, Belgium

来源：

COMPUTATIONAL MECHANICS | 2011年 / 47卷 / 05期

关键词：

Single point incremental forming; Finite element modeling; Force prediction; Material parameters identification; Inverse modeling; SHEET-METAL; STRAIN; SHEAR; FEM;

D O I：

10.1007/s00466-010-0563-4

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The aim of this article is to study the accuracy of finite element simulations in predicting the tool force occurring during the single point incremental forming (SPIF) process. The forming of two cones in soft aluminum was studied with two finite element (FE) codes and several constitutive laws (an elastic-plastic law coupled with various hardening models). The parameters of these laws were identified using several combinations of a tensile test, shear tests, and an inverse modeling approach taking into account a test similar to the incremental forming process. Comparisons between measured and predicted force values are performed. This article shows that three factors have an influence on force prediction: the type of finite element, the constitutive law and the identification procedure for the material parameters. In addition, it confirms that a detailed description of the behavior occurring across the thickness of the metal sheet is crucial for an accurate force prediction by FE simulations, even though a simple analytical formula could provide an otherwise acceptable answer.

引用

页码：573 / 590

页数：18

共 43 条

[1] Force prediction for single point incremental forming deduced from experimental and FEM observations [J].