Journal ArticleDOI
Analysis of fatigue crack growth in an attachment lug based on the weight function technique and the UniGrow fatigue crack growth model
TLDR
In this article, a generalised step-by-step procedure for fatigue crack growth analysis of structural components subjected to variable amplitude loading spectra has been presented, illustrated by analyzing fatigue growth of planar corner crack in an attachment lug made of Al7050-T7451 alloy.About:
This article is published in International Journal of Fatigue.The article was published on 2012-09-01. It has received 34 citations till now. The article focuses on the topics: Crack closure & Paris' law.read more
Citations
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Journal ArticleDOI
Continuum approach to fatigue crack initiation and propagation in welded steel joints
TL;DR: In this paper, a continuum-based discrete crack growth approach is introduced for the fatigue life analysis of welded steel joints, which applies cumulative damage models utilising the material hardness and grain size statistics.
Journal ArticleDOI
Analysis of fatigue crack growth under spectrum loading – The UniGrow fatigue crack growth model
TL;DR: In this paper, the authors used the Smith-Watson-Topper (SWT) fatigue damage parameter to predict the fatigue crack growth in the case of notched and welded components.
Journal ArticleDOI
A simplified method for the evaluation of fatigue crack front shapes under mode I loading
TL;DR: In this article, the authors developed a simplified method for the evaluation of the front shapes of through-the-thickness fatigue cracks, and validated the developed method against experimental results, investigate the influence of various parameters on the crack front shapes at stable (steady-state) propagation and analyse the differences in the results of fatigue crack growth evaluation obtained with two-and three-dimensional approaches.
Journal ArticleDOI
Prediction of fatigue life by crack growth analysis
TL;DR: In this paper, an improved mechanical driving force parameter for crack growth analysis is proposed, which considers the influence of residual stress distribution near the crack tip, and it is proved that this improved mechanical parameter so-called residual-corrected stress intensity factor can better predict fatigue life with a greater accuracy compared with experimental results.
Journal ArticleDOI
Fatigue strength assessment of initial semi-elliptical cracks located at a hole
TL;DR: In this paper, the residual strength of a pin-loaded lug and a finite plate, both with a semi-elliptical crack emanating from a hole, is examined, and a new analytical methodology, based on Fracture Mechanics concepts, is proposed to analyse the crack propagation process in terms of life estimation and crack front evolution.
References
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Journal ArticleDOI
Theory of Stress Concentration for Shear-Strained Prismatical Bodies With Arbitrary Nonlinear Stress-Strain Law
Book ChapterDOI
The Effect of Stress Ratio During Crack Propagation and Fatigue for 2024-T3 and 7075-T6 Aluminum
Journal ArticleDOI
Universal features of weight functions for cracks in mode I
Grzegorz Glinka,G. Shen +1 more
TL;DR: In this paper, a universal weight function expression with suitable reference stress intensity factors was used to derive the weight functions for internal and external radial cracks in a thick cylinder, and these weight functions were then further used to calculate the stress intensity factor for radial cracks.
Journal ArticleDOI
Residual stress effects on near-threshold fatigue crack growth in friction stir welds in aerospace alloys
TL;DR: In this article, a study on near-threshold fatigue crack growth in friction stir welded aluminum alloy 7050-T7451 and a titanium alloy Ti-6Al-4V is presented.