EXPERIMENTAL-OBSERVATION OF CRACK-PROPAGATION IN 6063-T6 AL-ALLOY UNDER CONSTANT AMPLITUDE LOADING

被引：0

作者：

KUMAR, R

机构：

[1] Motilal Nehru Regional Engineering, Coll, Allahabad, India

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1990年 / 42卷 / 03期

关键词：

Metals Testing - Stresses - Stresses - Analysis;

D O I：

10.1016/0308-0161(90)90029-H

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack propagation experiments were performed on 6063-T6 Al-alloy for various load ranges and stress ratios. Experimental results show that for a constant load range, the life of specimens decreased as stress ratio increased. At constant maximum load, the life of the specimen increased as the load ratio increased. The crack growth data were analysed in terms of ΔKeff as a function of stress ratio R. The data covered R values from 0 to 0.5 and a good relationship was obtained for Keff/K = 0.55 + 0.12 R2. A crack growth rate equation was developed.

引用

页码：303 / 315

页数：13