Authors: Boljanović, Slobodanka 
Carpinteri, Andrea
Title: Modelling the residual strength of fatigue damage at a single semicircular edge notch: Semielliptical crack and through-the-thickness crack
Journal: Fatigue and Fracture of Engineering Materials and Structures
Volume: 42
Issue: 5
First page: 1010
Last page: 1021
Issue Date: 1-May-2019
Rank: M21
ISSN: 8756-758X
DOI: 10.1111/ffe.12965
Abstract: 
In the present paper, computational framework for fatigue performance analysis of a semicircular edge notch with a through-the-thickness crack or a semielliptical crack is discussed. The failure behaviour of such configurations is theoretically examined through the stress-intensity analysis and residual life estimation. The stress field of a damaged notch configuration is herein investigated by employing analytical and numerical approaches. Further, a fracture mechanics–based methodology, developed for fatigue life assessment, is taking into account the crack growth model proposed by Huang and Moan in which the stress ratio is involved. The efficiency of the obtained fatigue damage assessments, related to the edge notch configurations, is verified through appropriate experimental observations.
Keywords: edge notch | fatigue life | FEM | semielliptical/through cracks | stress-intensity analysis
Publisher: Wiley
Project: Dynamics of hybrid systems with complex structures. Mechanics of materials. 

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