Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/77685
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Type: Journal article
Title: Three dimensional finite element mixed fracture mode under anti-plane loading of a crack
Author: Kotooussov, A.
Berto, F.
Lazzarin, P.
Pegorin, F.
Citation: Theoretical and Applied Fracture Mechanics, 2012; 62(1):26-33
Publisher: Elsevier Science BV
Issue Date: 2012
ISSN: 0167-8442
1872-7638
Statement of
Responsibility: 
Andrei Kotousov, Filippo Berto, Paolo Lazzarin, Fabio Pegorin
Abstract: The 3D Finite Element method is applied to mixed fracture under anti-plane loading of a straight through-the-thickness crack in a linear elastic plate. This coupled fracture mode represents one of three-dimensional phenomena, which are currently largely ignored in numerical simulations and failure assessment of structural components weakened by cracks. It arises due to the boundary conditions on the plate free surfaces, which negate the transverse shear stress components corresponding to classical mode III. Instead, a new singular stress state in addition to the well-known 3D corner singularity is generated. This singular stress state (or coupled fracture mode) can affect or contribute significantly to the fracture initiation conditions. The coupled singular mode exists even if the applied anti-plane loading produces no singularities (KIII=0). In this case there is a strong thickness effect on the intensity of the coupled fracture mode. © 2013 Elsevier Ltd.
Keywords: Crack
Finite Element method
Anti-plane loading
Plate
Linear elasticity
Coupled fracture mode
Rights: Copyright 2013 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.tafmec.2013.01.003
Published version: http://dx.doi.org/10.1016/j.tafmec.2013.01.003
Appears in Collections:Aurora harvest
Materials Research Group publications
Mechanical Engineering publications

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