Paper Title:
Fatigue Reliability Copula Model of Structural Systems with Fatigue Life Correlation
  Abstract

It is the common characteristic of most engineering systems that failure statistical correlation of elements exists in the fatigue happened process due to the twin loads.Based on randomized Basquin equation,the constitutive relations between element life and twin loads,initial strength,fatigue strength exponent are established.Product-moment correlation coefficients are derived and used to quantify the dependence of logarithm life of elements.Aim at fatigue life correlation of elements in structural systems, the computation model of the system reliability is preliminarily established by means of using copula function. The new model can express the dependence of elements fatigue life in structural systems, can be used probability prediction of structural systems under common stochastic cyclic load, which gives a new path for reliability-based design and probability assesment in equipment systems with multi-mode damage coupling.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
548-554
DOI
10.4028/www.scientific.net/AMR.199-200.548
Citation
W. Q. Han, J. Y. Zhou, "Fatigue Reliability Copula Model of Structural Systems with Fatigue Life Correlation", Advanced Materials Research, Vols. 199-200, pp. 548-554, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xin Mei Yuan, Si Zhu Zhou, Tian Cheng Huang
Chapter 7: Computer Application in Design and Manufacturing (2)
Abstract:With three-dimensional finite element method, the crosshead of plunger pump was analyzed. The distribution law of stress at the crosshead was...
4208
Authors: Adam Niesłony, Andrzej Kurek
Chapter 3: Uncertainty in Usage
Abstract:The algorithm of fatigue life determination for machine elements subjected to random loading uses fatigue characteristics of the material...
197
Authors: Jian Ming Zhai, Xiao Yang Li
Chapter 3: Chemical, Biological, Composites, Functional Materials Science and Technology
Abstract:The performances of material fatigue can be illustrated by the S-N curve, the p-S-N curve and the fatigue limit, which are very important to...
256
Authors: Wei Wei Tang, Hong Wang
Chapter 1: Materials Engineering. Technologies and Processing
Abstract:In order to ensure the reliability of the fatigue design, the dispersion of S-N data obtained by ultrasonic fatigue test is usually...
388
Authors: Michał Böhm, Adam Niesłony
Chapter 1: Fatigue of Materials
Abstract:The paper presents a new formula for fatigue life determination with the use of the spectral method for fatigue life assessment on the basis...
112