Abstract
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Highlights
N umerous failure criteria have been proposed by scholars dealing with the brittle fracture of V-notches [1]
Two different formulations of the Finite Fracture Mechanics (FFM) criterion is available in the literature: the first formulation was proposed by Leguillon [6,7] and the second one was proposed by Carpinteri et al [8]
Three different fracture criteria for brittle and quasi-brittle materials weakened by sharp V-notches have been considered in the present contribution
Summary
N umerous failure criteria have been proposed by scholars dealing with the brittle fracture of V-notches [1]. According to the intensified linear elastic stress at the notch tip, introducing a stress field parameter is useful. Considering the Linear Elastic Notch Mechanics (LEFM) concept, NSIFs can be successfully employed for the fracture assessment of brittle materials when weakened by sharp V-notches [2,3]. Lazzarin et al [4] compared two widely employed criteria based on energy considering V-notched components under pure Mode I loading; the first criterion is based on the local SED [5] while the second criterion is the so-called FFM approach. The main aim of the current paper is to extend the previous comparison to the case of Mode II loading condition
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