The strain gradient approach to predict necking in tube hydroforming

被引：27

作者：

Hashemi, Ramin ^{[1
]}

Abrinia, Karen ^{[1
]}

Assempour, Ahmad ^{[2
]}

机构：

[1] Univ Tehran, Coll Engn, Dept Mech Engn, Tehran, Iran

[2] Sharif Univ Technol, Ctr Excellence Design Robot & Automat, Dept Mech Engn, Tehran, Iran

来源：

JOURNAL OF MANUFACTURING PROCESSES | 2013年 / 15卷 / 01期

关键词：

Numerical; Model; Forming; FINITE-ELEMENT-ANALYSIS; FORMING LIMIT STRESS; SIMULATION;

D O I：

10.1016/j.jmapro.2012.11.001

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A stress-based forming limit diagram for necking prediction which is based on the strain gradient theory of plasticity in conjunction with the M-K model has been represented and used in tube hydroforming. In this study, the finite element model for bulge forming of straight tube has been constructed and verified with published experimental data. The adaptive simulation technique is based on the ability to detect the onset and growth of defects (e.g., wrinkling, and bursting) and to promptly readjust the loading paths. Thus, a suitable load path has been obtained by applying Adaptive Simulation Method in ANSYS Parametric Design Language (APDL). (C) 2012 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.

引用

页码：51 / 55

页数：5

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