Study on Fatigue Crack Propagation at Negative Stress Ratio in 2A12 Aluminum Alloy

被引：0

作者：

Bai, S. G. ^{[1
,2
]}

Zhang, J. Z. ^{[1
,3
]}

Sha, Y.

机构：

[1] Harbin Inst Technol, Composite Res & Struct Ctr, Harbin 150001, Peoples R China

[2] Northeast Agr Univ, Sch Sci, Harbin 150030, Peoples R China

[3] Harbin Inst Technol, Composite Res & Struct Ctr, Harbin 150001, Peoples R China

来源：

ADVANCED MATERIALS AND STRUCTURES, PTS 1 AND 2 | 2011年 / 335-336卷

关键词：

Aluminum alloy; Fatigue crack propagation; Negative stress ratio; Finite element analysis; COMPRESSIVE STRESSES; GROWTH; THRESHOLD; CLOSURE;

D O I：

10.4028/www.scientific.net/AMR.335-336.809

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper intends to get compressive loading effect on fatigue crack growth of 2A12 aluminum alloy. The fatigue crack propagation tests at negative stress ratio R=-0.5, -1 and -2 were made in different applied compressive loading. The result showed that the effect of the compressive loading part of the applied stress cycle on fatigue crack growth rate in 2A12 aluminum alloy at negative stress ratio can not be omitted.

引用

页码：809 / +

页数：3

共 13 条

[1] The effect of microstructure and environment on fatigue crack growth in 7049 aluminium alloy at negative stress ratios [J].