Short crack propagation in eutectoid steel wires

被引：31

作者：

Beretta, S

Matteazzi, S

机构：

[1] Politecnico di Milano, Dipartimento di Meccanica, 20133 Milano

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1996年 / 18卷 / 07期

关键词：

wires; cold drawing; defects; short-cracks; propagation;

D O I：

10.1016/0142-1123(96)00014-X

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Recent studies showed that fatigue failure of high-strength eutectoid steel wires originates from surface flaws caused by the cold-drawing process. In this research we studied the short crack problem and analysed microcrack propagation and threshold. The study led to a description of the fatigue process from the characteristic nucleation sites of cold-drawn wires. The adoption of an EPFM crack propagation model allowed us to obtain fatigue life prediction from the experimental population of defects. Copyright (C) 1996.

引用

页码：451 / 456

页数：6

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