Experimental investigations on the ductility improvement due to stress relaxation in aluminium alloy 5083 under biaxial loading conditions

被引：0

作者：

Balaji, Vikram ^{[1
]}

Dongarwar, Rubal ^{[2
]}

Krishnaswamy, Hariharan ^{[1
]}

Mishra, Sushil ^{[2
]}

机构：

[1] Indian Inst Technol Madras, Dept Mech Engn, Chennai 600036, Tamil Nadu, India

[2] Indian Inst Technol, Dept Mech Engn, Mumbai 400076, Maharashtra, India

来源：

MANUFACTURING LETTERS | 2025年 / 43卷

关键词：

Stress relaxation; Biaxial tensile test; Load path; Ductility improvement; Aluminium alloy; TENSILE DEFORMATION; FORMABILITY; SHEETS;

D O I：

10.1016/j.mfglet.2024.11.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of stress relaxation on ductility improvement has been extensively studied for metallic materials, primarily through interrupted uniaxial tensile tests. However, components in typical press forming processes are subjected to multiaxial states of stresses. The applied load paths are expected to have a bearing on the failure strain post relaxation, which is infeasible to study under uniaxial loading. Therefore, single relaxation tests are carried out through interrupted planar biaxial tensile tests in cruciform samples of an aluminum alloy. The tests are performed at different load ratios to assess the load path dependency of stress relaxation, which is otherwise neglected. (c) 2024 Society of Manufacturing Engineers (SME). Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

引用

页码：37 / 45

页数：9

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