FATIGUE CRACK TIP PLASTICITY RESULTING FROM LOAD INTERACTIONS IN AN ALUMINUM-ALLOY

被引：8

作者：

DAVIDSON, DL

LANKFORD, J

机构：

[1] Southwest Research Institute, San Antonio, Texas

来源：

FATIGUE OF ENGINEERING MATERIALS AND STRUCTURES | 1979年 / 1卷 / 04期

关键词：

D O I：

10.1111/j.1460-2695.1979.tb01331.x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Abstract Displacements in the region very near to a fatigue crack tip have been observed using a stereoimaging technique. The results of changing the minimum/maximum stress ratio, for a single overload and a single underload are given for a powder metallurgy aluminum alloy. Material motions near the crack tip are complex and depend on the loading characteristic. Compressive strain fields near the crack tip in the unloaded state were found to be highly dependent on load characteristic due to variation in reversed plasticity. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：439 / 446

页数：8

共 9 条

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