A numerical analysis of relationship between ductility and nucleation and critical void volume fraction parameters of Gurson–Tvergaard–Needleman model

M Hadj Miloud; A Imad; N Benseddiq; B Bachir Bouiadjra; A Bounif; B Serier

doi:10.1177/0954406213476232

$A numerical analysis of relationship between ductility and nucleation and critical void volume fraction parameters of Gurson–Tvergaard–Needleman model$

Journal article

Peer reviewed

A numerical analysis of relationship between ductility and nucleation and critical void volume fraction parameters of Gurson–Tvergaard–Needleman model

M Hadj Miloud, A Imad, N Benseddiq, B Bachir Bouiadjra, A Bounif and B Serier

Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, Vol.227(11), pp.2634-2646

11/2013

DOI: https://doi.org/10.1177/0954406213476232

Abstract

Gurson–Tvergaard–Needleman model is widely used to describe the three stages of ductile tearing: nucleation, growth and the coalescence of micro-voids. The aim of this article is to study the relationship between volume fraction of voids and the fracture strain ɛ f . The effects of the volume fraction of nucleation, f N , and the critical volume fraction, f c , were analysed. These parameters play crucial roles in the process of ductile damage. A phenomenological analysis is carried out to study the relationship between the different void volume parameters and the fracture strain ɛ f . A method is proposed for the determination of f N and f c , knowing the experimental fracture strain ɛ f . The experimental parameters are extracted from the load–diametric contraction curve of an axisymmetric notched tensile bar test AN2.

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Title: A numerical analysis of relationship between ductility and nucleation and critical void volume fraction parameters of Gurson–Tvergaard–Needleman model
Creators - without role: M Hadj Miloud - Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf
A Imad - Laboratoire de Mécanique de Lille, UMR CNRS 8107, Cité Scientifique, France
N Benseddiq - Laboratoire de Mécanique de Lille, UMR CNRS 8107, Cité Scientifique, France
B Bachir Bouiadjra - LMPM, Department of Mechanical Engineering, University of de Sidi Belabes, Sidi Belabès, Algéria
A Bounif - Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf
B Serier - LMPM, Department of Mechanical Engineering, University of de Sidi Belabes, Sidi Belabès, Algéria
Publication Details: Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, Vol.227(11), pp.2634-2646
Identifiers: 9949617808331
Academic Unit: King Saud University
Language: English
Resource Type: Journal article