A PROBABILISTIC MODEL FOR FATIGUE CRACK-GROWTH

被引：16

作者：

MIN, L

QINGXIONG, Y

机构：

[1] Department of Aircraft Engineering, Northeastern Polytechnical University (NPU), Xian

来源：

ENGINEERING FRACTURE MECHANICS | 1992年 / 43卷 / 04期

关键词：

D O I：

10.1016/0013-7944(92)90206-T

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A probabilistic model for predicting fatigue crack growth rate and cycles to Teach a given crack length is presented. The stochastic characterizations of crack growth parameters c and m in the Paris-Erdogan and Forman laws are investigated based upon crack growth experiments. According to the stochastic characterizations of c and m, the statistical distributions of crack growth rate da/dN and cycles to reach a given crack length are found using the Monte-Carlo simulation technique. The predicted results agree closely with those of crack growth experiments of aluminium alloy Ly12-cz. It is shown that this model may be used in engineering.

引用

页码：651 / 655

页数：5

共 15 条

[1] DESIGNING RELIABLY FOR FATIGUE CRACK-GROWTH UNDER RANDOM LOADING [J].