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Open AccessArticle

Finite Fracture Mechanics Assessment in Moderate and Large Scale Yielding Regimes

Fracture Research Laboratory, Faculty of New Science and Technologies, University of Tehran, P.O. Box 14395-1561 Tehran, Iran
Department of Industrial and Mechanical Engineering, Richard Birkelands vei 2b, Norwegian University of Science and Technology, 7034 Trondheim, Norway
Department of Structural, Building and Geotechnical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Author to whom correspondence should be addressed.
Metals 2019, 9(5), 602;
Received: 23 April 2019 / Revised: 21 May 2019 / Accepted: 22 May 2019 / Published: 24 May 2019
(This article belongs to the Special Issue Fracture, Fatigue and Structural Integrity of Metallic Materials)
PDF [1670 KB, uploaded 24 May 2019]


The coupled Finite Fracture Mechanics (FFM) criteria are applied to investigate the ductile failure initiation at blunt U-notched and V-notched plates under mode I loading conditions. The FFM approaches are based on the simultaneous fulfillment of the energy balance and a stress requirement, and they involve two material properties, namely the fracture toughness and the tensile strength. Whereas the former property is obtained directly from experiments, the latter is estimated through the Equivalent Material Concept (EMC). FFM results are presented in terms of the apparent generalized fracture toughness and compared with experimental data already published in the literature related to two different aluminium alloys, Al 7075-T6 and Al 6061-T6, respectively. It is shown that FFM predictions can be accurate even under moderate or large scale yielding regimes. View Full-Text
Keywords: blunt V-notches; aluminium plates; mode I loading; ductile failure; FFM; EMC blunt V-notches; aluminium plates; mode I loading; ductile failure; FFM; EMC

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Torabi, A.R.; Berto, F.; Sapora, A. Finite Fracture Mechanics Assessment in Moderate and Large Scale Yielding Regimes. Metals 2019, 9, 602.

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