Numerical investigation of the forming capability of bulge process by using rubber as a forming medium

被引：30

作者：

Koubaa, Sana ^{[1
]}

Belhassen, Lachhel ^{[1
]}

Wali, Mondher ^{[1
]}

Dammak, Fakhreddine ^{[1
]}

机构：

[1] Univ Sfax, Natl Engn Sch Sfax, Mech Modeling & Mfg Lab LA2MP, BP W3038, Sfax, Tunisia

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2017年 / 92卷 / 5-8期

关键词：

Flexible bulge forming process; Hydroforming; Ductile damage; Mooney-Rivlin theory; Forming limit diagram; FINITE-ELEMENT; SHEET-METAL; ALUMINUM-ALLOY; URETHANE ROD; TUBES;

D O I：

10.1007/s00170-017-0278-1

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A finite element simulation of flexible bulge forming of aluminum sheet metal is carried out. The effect of rubber pad on forming capability is studied by comparing flexible bulge to hydroforming. Based on the theory of Continuum Damage Mechanics (CDM), a local approach with fully coupling between ductile damage and an anisotropic elasto-plastic model with mixed nonlinear kinematic/isotropic hardening is introduced. The model is implemented into a user-defined material (VUMAT) subroutine for the commercial finite element code ABAQUS/Explicit. A Mooney-Rivlin theory is adopted for rubber material behavior. Comparisons between both processes in terms of thickness variation, damage occurrence, and sheet formability are conducted for different rubber shores and friction. Numerical findings are in a good correlation with experiments from literature.

引用

页码：1839 / 1848

页数：10

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