Journal
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
Volume 61, Issue -, Pages 433-442Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.euromechsol.2016.10.014
Keywords
Porous ductile materials; Void shape effects; Shear loadings; Numerical simulations; Experimental results
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The aim of this paper is to investigate ductile failure under shear-dominated loadings using a model of plastic porous solids incorporating void shape effects. We use the model proposed by (Madou and Leblond, 2012a,b; Madou et al., 2013; Madou and Leblond, 2013) to study the fracture of butterfly specimens subjected to combined tension and shear. This model is able to reproduce, for various loading conditions, the macroscopic softening behavior and the location of cracks observed in experiments performed by Dunand and Mohr (2011a,b). Void shape effects appear to have a very significant influence on ductile damage at low stress triaxiality. (C) 2016 Elsevier Masson SAS. All rights reserved.
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