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




On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect - Download this document for free, or read online. Document in PDF available to download.

1

Al Imam Mohammad Ibn Saud Islamic University IMSIU, Othman Ibn Affan Street, Riyadh 11432, Saudi Arabia

2

Laboratoire de Mécanique de Sousse LMS, ENISo, Technopole de Sousse, University of Sousse, BP 254 Erriadh 4023, Tunisia

3

SIMaP-LTPCM, Institut National Polytechnique de Grenoble, 38402 Saint Martin d’Heres, France



This author deceased on 24 November 2015





*

Author to whom correspondence should be addressed.



Academic Editor: Hugo F. Lopez

Abstract 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. View Full-Text

Keywords: metallic glasses; serrated flow; flow defects; shear bands metallic glasses; serrated flow; flow defects; shear bands





Author: Nashmi Hassan Alrasheedi 1, Mohamed Abdelbasset Yousfi 2, Khalil Hajlaoui 1,2,* , Bacem Jacem Mahfoudh 2, Zoubeir Tourki 2 and Alain Reza Yavari 3,†

Source: http://mdpi.com/



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