Stress intensity factors and fatigue growth of surface cracks in notched shells and round bars: two decades of research work. Issue 11 (24th August 2013)

• Record Type: Journal Article
• Authors: Carpinteri, Andrea; Ronchei, Camilla; Vantadori, Sabrina
• Other Names: Kotousov A. guestEditor.; Lazzarin P. guestEditor.
• Is Part Of: Fatigue & fracture of engineering materials & structures. Volume 36:Issue 11(2013:Nov.)
• Page Start: 1164
• Page End: 1177
• Publication Date: 2013-08-24
• Subjects: fatigue -- finite element analysis -- linear elastic -- mode I -- SIF -- surface crack; Materials -- Fatigue -- Periodicals; Fracture mechanics -- Periodicals; 620.1123
• DOI: 10.1111/ffe.12092
• Languages: English
• ISSNs: 8756-758X

Abstract

ABSTRACT: In the present paper, some research results determined by the authors during the last two decades are reviewed. The influence of notches (geometrical discontinuities) on the fatigue life of metallic structural components is analysed. In particular, notches with different shapes (therefore characterised by different values of the stress concentration factor) are examined in the case of both double‐curvature shells and round bars under mode I loading. An elliptical‐arc surface crack is assumed to exist at the notch root. The stress intensity factor (SIF) is numerically evaluated, and the crack propagation under cyclic loading is analysed through a numerical procedure, which takes into account the aforementioned SIF.