On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect

On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect

A constitutive model for serrated flow together with a finite element (FE) analysis was developed to simulate discontinuous yielding behavior of metallic glasses, commonly known as serrated flow inhomogeneous deformation. The constructed model is based on transient behavior resulting from the time d...

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Main Authors: Nashmi Hassan Alrasheedi, Mohamed Abdelbasset Yousfi, Khalil Hajlaoui, Bacem Jacem Mahfoudh, Zoubeir Tourki, Alain Reza Yavari
Format: Article
Language:English
Published: MDPI AG 2016-02-01
Series:Metals
Subjects:
metallic glasses
serrated flow
flow defects
shear bands
Online Access:http://www.mdpi.com/2075-4701/6/3/48
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spelling doaj-bcbe3e126faf4439a446f1fac44086b22020-11-24T23:03:49ZengMDPI AGMetals2075-47012016-02-01634810.3390/met6030048met6030048On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier EffectNashmi Hassan Alrasheedi0Mohamed Abdelbasset Yousfi1Khalil Hajlaoui2Bacem Jacem Mahfoudh3Zoubeir Tourki4Alain Reza Yavari5Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Othman Ibn Affan Street, Riyadh 11432, Saudi ArabiaLaboratoire de Mécanique de Sousse (LMS), ENISo, Technopole de Sousse, University of Sousse, BP 254 Erriadh 4023, TunisiaAl Imam Mohammad Ibn Saud Islamic University (IMSIU), Othman Ibn Affan Street, Riyadh 11432, Saudi ArabiaLaboratoire de Mécanique de Sousse (LMS), ENISo, Technopole de Sousse, University of Sousse, BP 254 Erriadh 4023, TunisiaLaboratoire de Mécanique de Sousse (LMS), ENISo, Technopole de Sousse, University of Sousse, BP 254 Erriadh 4023, TunisiaSIMaP-LTPCM, Institut National Polytechnique de Grenoble, 38402 Saint Martin d’Heres, FranceA constitutive model for serrated flow together with a finite element (FE) analysis was developed to simulate discontinuous yielding behavior of metallic glasses, commonly known as serrated flow inhomogeneous deformation. The constructed model is based on transient behavior resulting from the time dependence of the flow defect concentration in the shear bands. The computed results of stress-strain curves were consistent with the experimental data. The main features of the serrated flow effect have also been exhibited by the model.http://www.mdpi.com/2075-4701/6/3/48metallic glassesserrated flowflow defectsshear bands
collection DOAJ
language English
format Article
sources DOAJ
author Nashmi Hassan Alrasheedi
Mohamed Abdelbasset Yousfi
Khalil Hajlaoui
Bacem Jacem Mahfoudh
Zoubeir Tourki
Alain Reza Yavari
spellingShingle Nashmi Hassan Alrasheedi
Mohamed Abdelbasset Yousfi
Khalil Hajlaoui
Bacem Jacem Mahfoudh
Zoubeir Tourki
Alain Reza Yavari
On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
Metals
metallic glasses
serrated flow
flow defects
shear bands
author_facet Nashmi Hassan Alrasheedi
Mohamed Abdelbasset Yousfi
Khalil Hajlaoui
Bacem Jacem Mahfoudh
Zoubeir Tourki
Alain Reza Yavari
author_sort Nashmi Hassan Alrasheedi
title On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
title_short On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
title_full On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
title_fullStr On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
title_full_unstemmed On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect
title_sort on the modelling of the transient flow behavior of metallic glasses: analogy with portevin-le chatelier effect
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2016-02-01
description A constitutive model for serrated flow together with a finite element (FE) analysis was developed to simulate discontinuous yielding behavior of metallic glasses, commonly known as serrated flow inhomogeneous deformation. The constructed model is based on transient behavior resulting from the time dependence of the flow defect concentration in the shear bands. The computed results of stress-strain curves were consistent with the experimental data. The main features of the serrated flow effect have also been exhibited by the model.
topic metallic glasses
serrated flow
flow defects
shear bands
url http://www.mdpi.com/2075-4701/6/3/48
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