Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1486
Title: Void coalescence in ductile solids containing two populations of voids
Authors: Tekoğlu, Cihan
136331
Keywords: Finite element analysis
Limit load
Micromechanics and/or materials mechanics
Ductile fracture
Void coalescence
Issue Date: Oct-2015
Publisher: Pergamon-Elsevier Science Ltd
Source: Tekoglu, C. (2015). Void coalescence in ductile solids containing two populations of voids. Engineering Fracture Mechanics, 147, 418-430.
Abstract: Many metallic alloys contain a primary and a secondary population of voids, the difference in size reaching up to orders of magnitude. The present study extends Thomason's and Benzerga-Leblond's criteria for the onset of coalescence of primary voids to incorporate the effects of a secondary population. Plastic limit load analysis is performed within a finite element (FE) framework by using three dimensional (3D) cubic unit cells. The macroscopic stress state of the unit cells corresponds to axisymmetric tension with Sigma(22) > Sigma(11) = Sigma(33). The extended versions of both criteria are able to successfully predict the critical stress for the onset of coalescence. (C) 2015 Elsevier Ltd. All rights reserved.
URI: https://www.sciencedirect.com/science/article/pii/S0013794415003719?via%3Dihub
https://hdl.handle.net/20.500.11851/1486
ISSN: 0013-7944
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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