Stress gradient effect in metal fatigue: Review and solutions

• Type: Another Publication in an International Scientific Journal
• Date: 2022

Authors

Zhu, SP (Author) Other; Ye, WL (Author) Other; Correia, JAFO (Author) FEUP; Abilio M P De Jesus (Author) FEUP; Wang, QY (Author) Other

Journal

Title: Theoretical and Applied Fracture Mechanics

Vol. 121

ISSN: 0167-8442

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 2 Citations

Other information

Authenticus ID: P-00X-3DT

DOI: 10.1016/j.tafmec.2022.103513

Abstract (EN): Under external loadings, notched components always show varying degrees of stress concentration. Accordingly, different kinds of approaches have been presented to characterize notch fatigue behaviours under complex loading histories. Among them, the considering of the stress gradient effect is a popular perspective, together with the fatigue damage zone and critical distance concepts. This work systematically reviews recent advances on notch fatigue analysis considering the stress gradient effect. Specifically, four approaches are summarized and explored, namely the local stress/strain-based approaches, critical distance-based approaches, critical plane -based approaches, and weighting control parameters-based approaches. This review aims to provide a system-atic review and comparison on these methods, therefore to offer a reference for subsequent research on notch fatigue.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17