A numerical study of strain localization in elasto-thermo-viscoplastic materials using radial basis function networks

Le, Phong and Mai-Duy, Nam and Tran-Cong, Thanh and Baker, Graham (2007) A numerical study of strain localization in elasto-thermo-viscoplastic materials using radial basis function networks. Computers, Materials and Continua, 5 (2). pp. 129-150. ISSN 1546-2218

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Abstract

This paper presents a numerical simulation of the formation and evolution of strain localization in elasto-thermo-viscoplastic materials (adiabatic shear band) by the indirect/integral radial basis function network (IRBFN) method. The effects of strain and strain rate hardening, plastic heating, and thermal softening are considered. The IRBFN method is enhanced by a new coordinate mapping which helps capture the stiff spatial structure of the resultant band. The discrete IRBFN system is integrated in time by the implicit fifth-order Runge-Kutta method. The obtained results are compared with those of the Modified Smooth Particle Hydrodynamics (MSPH) method and Chebychev Pseudo-spectral (CPS) method.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Awaiting copyright advice.
Depositing User: Prof Thanh Tran-Cong
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 07 Feb 2008 23:48
Last Modified: 02 Jul 2013 22:54
Uncontrolled Keywords: shear band; strain localization; RBFN; imperfection; shear band formation
Fields of Research (FOR2008): 01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010302 Numerical Solution of Differential and Integral Equations
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0915 Interdisciplinary Engineering > 091502 Computational Heat Transfer
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.3970/cmc.2007.005.129
URI: http://eprints.usq.edu.au/id/eprint/3572

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