A STATISTICAL-ANALYSIS OF FATIGUE-CRACK GROWTH IN A 2091-AL-CU-LI ALLOY

被引：17

作者：

CAVALLINI, M

IACOVIELLO, F

机构：

[1] Dipartimento di Ingegneria Industriale, University di Cassino

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1995年 / 17卷 / 02期

关键词：

FATIGUE CRACK PROPAGATION; PARIS LAW; FATIGUE LIFETIME PREDICTIONS;

D O I：

10.1016/0142-1123(95)95893-L

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The phenomenological approach to fatigue crack growth through the Paris-Erdogan model suggests a linear relationship between the two parameters m and log C. Besides any physical interpretation, this relationship allows a statistical analysis of a set of 37 fatigue tests carried out on a 2091 Al-Cu-Li alloy in the same experimental conditions. Fatigue crack growth rate data show a normal distribution for both m and log C. These statistical results allow a probabilistic prediction of fatigue lifetimes between two stated values of crack length.

引用

页码：135 / 139

页数：5

共 17 条

[1]

BRAHMI S, 1992, MEM SCI REV MET, V82, P769

[2] FATIGUE MODELS FOR AL-ALLOYS [J].