The influence of linear kinematic hardening and non-linear combined isotropic-kinematic hardening plasticity model on sliding contact

Nagentrau, M. and Siswanto, Waluyo Adi and Mohd Tobi, Abdul Latif (2016) The influence of linear kinematic hardening and non-linear combined isotropic-kinematic hardening plasticity model on sliding contact. International Journal of Mechanical & Mechatronics Engineering, 16 (4). pp. 83-88. ISSN 2227-2771

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Abstract

This paper addresses the plastic strain and stress behaviour of sliding contact using two different plasticity models and sliding amplitudes. A numerical two-dimensional (2D) cylinder-on-flat contact model subjected to normal loading and sliding is investigated. The elasto-plastic Ti-6Al-4V alloy is examined under quasi-static condition in this simulation. The influence of Linear Kinematic hardening and Non-Linear Combined Isotropic-Kinematic hardening plasticity models for sliding amplitude of 0.05 mm and 0.2 mm are studied based on plastic strain and stress distributions. Contact pressure, von Mises stress, tangential stress, shear stress, equivalent plastic strain, tangential plastic strain and also shear plastic strain are analyzed on selected specific element from the surface and subsurface of the substrate (flat surface). The FE model is validated and verified with Hertzian contact theoretical solution. The Linear Kinematic hardening plasticity model predicts higher stress response, meanwhile Non-Linear Combined Isotropic-Kinematic hardening plasticity model gives higher plastic strain. The higher sliding amplitude effect results in higher plasticity accumulation.

Item Type:Article
Uncontrolled Keywords:cylinder-on-flat; reciprocating sliding; Ti-6Al-4V; linear kinematic hardening; non-linear combined isotropic-kinematic hardening
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Engineering Mechanics
ID Code:8393
Deposited By:A/Prof. Dr. Waluyo Adi Siswanto
Deposited On:05 Oct 2016 15:39
Last Modified:05 Oct 2016 15:39

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