Title : ( Influence of combined impact and cyclic loading on the overall fatigue life of forged steel, EA4T )
Authors: Amir Malekzadeh , Saeid Hadidi Moud , Khalil Farhangdoost ,
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Abstract
The performance of forged steel, EA4T, used in rail industry, under simulated in service conditions, i.e. combined impact - cyclic loading,was investigated through a comprehensive experimental programme. The standard Paris-Erdogan fatigue design curve parameters, m and C, were calibrated to account for the effect of the impact component of loading. A minimum threshold for impact load component, identified in the experiments, was also incorporated in the proposed empirical model. Comparison with experimental findings indicated that this “modified” Fatigue design curve could predict the fatigue life of pre impact loaded specimens with sufficient accuracy. It was therefore suggested that the modified model may be used as a novel design tool for predicting the overall fatigue life of components made of this material under the specified combined impact and fatigue loading conditions.
Keywords
, Combined impact, fatigue; Impact threshold; Modified Paris, Erdogan; Forged steel EA4T
@article{paperid:1061487,
author = {Malekzadeh, Amir and Hadidi Moud, Saeid and Farhangdoost, Khalil},
title = {Influence of combined impact and cyclic loading on the overall fatigue life of forged steel, EA4T},
journal = {Journal of Mechanical Science and Technology},
year = {2017},
volume = {31},
number = {3},
month = {February},
issn = {1738-494X},
pages = {1097--1103},
numpages = {6},
keywords = {Combined impact-fatigue; Impact threshold; Modified Paris-Erdogan; Forged steel EA4T},
}
%0 Journal Article
%T Influence of combined impact and cyclic loading on the overall fatigue life of forged steel, EA4T
%A Malekzadeh, Amir
%A Hadidi Moud, Saeid
%A Farhangdoost, Khalil
%J Journal of Mechanical Science and Technology
%@ 1738-494X
%D 2017
