Prediction of Fatigue Crack Growth of Aged Hardening Al-Alloys under Variable Amplitude Loading-Reference-Cited by-同舟云学术

Prediction of Fatigue Crack Growth of Aged Hardening Al-Alloys under Variable Amplitude Loading

Published:2014-03 Issue: Volume:891-892 Page:1729-1735
ISSN:1662-8985
Container-title:Advanced Materials Research
language:
Short-container-title:AMR

Author:

Benachour Mustapha¹,Zeggai Boumedienne²,Benachour Nadjia¹,Benguediab Mohamed³,Belmokhtar Abdelkader¹

Affiliation:

1. University of Tlemcen

2. University of Tlemcen, IS2M Laboratory

3. University of Sidi Bel Abbes

Abstract

In this investigation, variable amplitude loading effect was studied on aged hardening Al-alloys in series 2000 and 7000. Generalised Willenborg model was used in order to show loading interaction effects (overload effects). Variable amplitude loading under different form of spectrum has affected highly the fatigue life and fatigue crack growth rates. Fatigue lives were increased and fatigue crack growth rates (FCGRs) were decreased in increasing of overload ratio in single overload case. In application of overload band, the fatigue lives and FCGRs were affected by band overload and R-ratio of them when level in FCGRs was increased.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Link

https://www.scientific.net/AMR.891-892.1729.pdf

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