A review of spectral methods for variable amplitude fatigue prediction and new results

被引：43

作者：

Larsen, Curtis E. ^{[1
]}

Irvine, Tom ^{[2
]}

机构：

[1] NASA, Engn & Safety Ctr NESC, Johnson Space Ctr, 2101 NASA Pkwy, Houston, TX 77058 USA

[2] Dynam Concepts Inc, NESC Loads & Dynam Tech Discipline Team, Huntsville, AL 35806 USA

来源：

3RD INTERNATIONAL CONFERENCE ON MATERIAL AND COMPONENT PERFORMANCE UNDER VARIABLE AMPLITUDE LOADING, VAL 2015 | 2015年 / 101卷

关键词：

damage accumulation; rainflow analysis; random processes; stationary Gaussian; spectral methods; stochastic fatigue;

D O I：

10.1016/j.proeng.2015.02.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A review of the available methods for estimating fatigue damage from variable amplitude loading is presented. The dependence of fatigue damage accumulation on power spectral density (psd) is investigated for stationary Gaussian random processes. Improvements to the Rayleigh approximation are examined by comparison to rainflow analysis of time histories simulated from psd functions representative of simple theoretical and real world applications. Spectral methods investigated include those by Wirsching and Light, Ortiz and Chen, the Dirlik formula, and the Single-Moment method, among other recent methods. Guidelines and limitations are given for using spectral methods to increase confidence in the damage estimate. Published by Elsevier Ltd.

引用

页码：243 / 250

页数：8

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