Paper Title:
Study of the Multiaxial Fatigue Life Influencing Factors Based on the Critical Plane Approach
  Abstract

The tension-torsion thin walled tube specimens were used as the researching object in this paper. The method of determination to the critical plane which has the maximum normal strain and maximum shear strain was expounded. The strain state on the critical plane under non-proportional loading was analyzed, and the unified prediction model was used to calculate the fatigue life. In order to research the influence of phase difference on fatigue life under the non-proportional loading, the relation of the equivalent strain and the phase difference in different positive strain amplitude and different strain amplitude ratio were analyzed. It’s found that the dangerous phase difference which has the shortest fatigue life is in direct relation with the strain amplitude ratio. The general formula of dangerous phase difference is presented. Through the material mechanics performance and fatigue parameters of uniaxial stress state, the coefficients in the formula can be obtained and the coefficients of 15 kinds of common materials are given for practical application.

  Info
Periodical
Advanced Materials Research (Volumes 295-297)
Chapter
Chapter 7: Common Aspects of Manufacturing
Edited by
Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu
Pages
2314-2320
DOI
10.4028/www.scientific.net/AMR.295-297.2314
Citation
P. M. Lv, C. J. Shi, "Study of the Multiaxial Fatigue Life Influencing Factors Based on the Critical Plane Approach", Advanced Materials Research, Vols. 295-297, pp. 2314-2320, 2011
Online since
July 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: Shahrum Abdullah, Ahmad Kamal Ariffin
Abstract:This paper describes the laboratory accelerated fatigue tests of BS 080A42 steel using the shortened variable amplitude (VA) loading...
1023
Authors: Xin Hong Shi, Jian Yu Zhang, Rui Bao, Bin Jun Fei
Abstract:Studies about the effect of stress characteristics on multi-axial high-cycle fatigue of metals are still insufficient. Up to now, little work...
877
Authors: Shu Ying Yin, Li Jia Chen, Xin Wang
Building Materials
Abstract:In order to identify the influence of solid solution, aging and solid solution plus aging treatments on the low-cycle fatigue behavior of the...
883
Authors: Ewa Marcisz, Adam Niesłony, Tadeusz Łagoda
Chapter 1: Fatigue Life Prediction
Abstract:The paper presents the concept of division of the total strain amplitudes. Simulations were performed for high-alloy steel X6NiCr3220 for...
43