Paper Title:
A Key Parameter in a Novel Fatigue Crack Growth Model
  Abstract

The effect of the load ratio, R, or the mean-stress on fatigue life has been recognized for more than a hundred years. In this paper we first describe a novel mechanics model for fatigue crak growth (FCG) under constant amplitude (CA) loading based on static fracture mechanics with thinking about the inertial effect coefficient and its impact to crack tip, and then discuss the relation between R-ratio and fatigue crak growth rate. Comparison of the present analysis with experimental data taken from the literature demonstrates that R-ratio has a greater impact to the fatigue crack propagation.

  Info
Periodical
Advanced Materials Research (Volumes 163-167)
Edited by
Lijuan Li
Pages
3186-3192
DOI
10.4028/www.scientific.net/AMR.163-167.3186
Citation
L. X. Gu, Z. F. Liu, Z. Y. Xu, "A Key Parameter in a Novel Fatigue Crack Growth Model", Advanced Materials Research, Vols. 163-167, pp. 3186-3192, 2011
Online since
December 2010
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: Tomáš Denk, Vladislav Oliva, Aleš Materna
Abstract:A two-parameter constraint-based fracture mechanics approach is used to explain the effect of the constraint on the apparently anomalous...
307
Authors: Jia Zhen Zhang, Xiao Dong He, Shan Yi Du
Abstract:In-situ SEM observations have revealed that fatigue crack propagation in aluminium alloys is caused by the shear band decohesion around the...
293
Authors: F. Ricci, F. Franco, Nicola Montefusco
Abstract:In this paper, the mechanisms of propagation of the damage in aluminum panels repaired with bonded composite patches of different mechanical...
597
Authors: Wei Han, Da Zhao Yu, Qing He Fan
Metal alloy Materials
Abstract:The initial discontinuity state (IDS) concept was developed just several years ago in an attempt to describe the as-manufactured or...
1626
Authors: Li Hong Gao, Ge Ning Xu, Ping Yang
Structural Strength and Robustness
Abstract:The random formula on fatigue crack growth is deduced by the fatigue crack data and the improved Taguchi method, and the sample estimates of...
1277