PREDICTION OF FATIGUE DAMAGE AND FATIGUE LIFE UNDER RANDOM LOADING

被引：11

作者：

WU, WF

HUANG, TH

机构：

[1] Department of Mechanical Engineering, National Taiwan University, Taipei

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 1993年 / 53卷 / 02期

关键词：

D O I：

10.1016/0308-0161(93)90083-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The objective of the present paper is to find the fatigue damage and fatigue life of a structural component when subjected to variable-amplitude stress loading modeled as a wide-band or narrow-band Gaussian random process. In addition to the well-known Palmgren-Miner's linear damage rule, a nonlinear plastic work interaction damage rude is used as a basis for the accumulation of fatigue damage which gives us a more conservative fatigue life estimation as compared to the Palmgren-Miner rule. Numerical examples are performed and comparison is made for the fatigue damage and fatigue life evaluated under various random loading conditions and based on different damage rules. Several conclusions are drawn at the end of the paper which give us simpler rules to be used in the analysis and design of fatigue structures when subjected to random loading conditions.

引用

页码：273 / 298

页数：26

共 16 条

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