Influence of residual stresses in the tensile test of cold drawn wires

被引：23

作者：

Atienza, JM ^{[1
]}

Elices, M ^{[1
]}

机构：

[1] Univ Politecn Madrid, Dept Ciencia Mat, ETSI Caminos, Madrid, Spain

来源：

MATERIALS AND STRUCTURES | 2003年 / 36卷 / 262期

关键词：

D O I：

10.1617/13917

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The aim of this paper is to investigate the influence of residual stresses, due to cold-drawing, on the shape of the tensile stress-strain curve and particularly its influence on the ratio sigma(0.2)/sigma(max) through a numerical and experimental work. It was found that residual stresses favours the onset of yielding and the ratio sigma(0.2)/sigma(max) decreases with increasing values of residual stresses. Because of the deleterious effect of residual stresses on fatigue and stress corrosion and because such stresses affect the ratio sigma(0.2)/sigma(max), it is reasonable to put a lower limit to sigma(0.2)/sigma(max) in the standards. The ratio sigma(0.2)/sigma(max) can be increased by relieving residual stresses, a common procedure after drawing. This fact is also ascertained.

引用

页码：548 / 552

页数：5