Title : Molecular Dynamics Simulations of Bauschinger Effects on a Defect- Free Single Crystal Nickel ( Molecular Dynamics Simulations of Bauschinger Effects on a Defect- Free Single Crystal Nickel )
Authors: AliReza Setoodeh , H Attariani , M Khosrownejad ,
Full TextAbstract
In this study, the Bauschinger effect on a defectfree single crystal of Nickel is modeled implementing molecular dynamics simulations in nanoscale. The inter-atomic interactions are represented by employing embedded-atom potential. First, the stress-strain curves of tension and compression loading are simulated. The generated results show that the yield stress in compression is lower than the tensile yield stress. At the second stage, the tension-followed-bycompression process at a known strain rate is applied to the specimen. It is observed that the obtained yield stress in the reloading or reversed loading is substantially less than the compressive yield stress in the original direction which is known as Bauschinger effect. The reversed loading process is performed at different strain levels after tensile yield stress and the influence of strain levels on Bauschinger effect is studied. In this state the Bauschinger stress parameter (BP) is introduced to quantify the Bauschinger effects on Ni crystal
Keywords
, Molecular Dynamics Simulations of Bauschinger Effects on a Defect, Free Single Crystal Nickel
@inproceedings{paperid:103012,
author = {Setoodeh, AliReza and H Attariani and M Khosrownejad},
title = {Molecular Dynamics Simulations of Bauschinger Effects on a Defect- Free Single Crystal Nickel},
booktitle = {Molecular Dynamics},
year = {2008},
keywords = {Molecular Dynamics Simulations of Bauschinger Effects on a Defect- Free Single Crystal Nickel},
}
%0 Conference Proceedings
%T Molecular Dynamics Simulations of Bauschinger Effects on a Defect- Free Single Crystal Nickel
%A Setoodeh, AliReza
%A H Attariani
%A M Khosrownejad
%J Molecular Dynamics
%D 2008
