Predicting the bending limit of AA8112 tubes using necking criterion in manufacturing of bent tubes

被引：20

作者：

Elyasi, Majid ^{[1
]}

Paluch, Mehrdad ^{[1
]}

Hosseinzadeh, Morteza ^{[2
]}

机构：

[1] Babol Noshirvani Univ Technol, Dept Mech Engn, POB 484, Babol Sar, Iran

[2] Islamic Azad Univ, Ayatollah Amoli Branch, Dept Mech Engn, Amol, Iran

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2017年 / 88卷 / 9-12期

关键词：

Bending ratio; Hydro-rotary draw bending; AA; 8112; alloy; FE simulation;

D O I：

10.1007/s00170-016-9042-1

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Nowadays, thin-walled tube bending at small bending ratios is a production process widely used in advanced industries. This research has been carried out to obtain the smallest bending ratio, and maximum applicable internal pressure in Hydro-rotary draw bending of thin-walled AA8112 alloy tube using necking criterion. To accomplish the objective, equivalent plastic strain of extrados critical region has been selected for necking criterion. The results showed that the selected necking criterion would be able to successfully determine the onset of rupture in bending. In order to validate FE simulation, the effects of bending ratio and internal pressure on defects, such as cross-section ovality and thickness changing, have also been investigated through simulation in ABAQUS software and experiments.

引用

页码：3307 / 3318

页数：12

共 15 条

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