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Recent Developments on Thermo-Mechanical Simulations of Ductile Failure by Meshfree Method

B. Ren1,2, J. Qian1, X. Zeng1, A. K. Jha3, S. Xiao4, S. Li1,5

Department of Civil and Environmental Engineering, University of California, Berkeley, CA 94720, USA
School of Hydro-power and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
NextGen Aeronautics, 2780 Skypark Drive, Suite 400, Torrance, CA 90505, USA
Department of Mechanical and Industrial Engineering, The University of Iowa, Iowa City, IA52242, USA
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China. Corresponding Email: shaofan@berkeley.edu

Computer Modeling in Engineering & Sciences 2011, 71(3), 253-278. https://doi.org/10.3970/cmes.2011.071.253

Abstract

Ductile failure is a complex multi-scale phenomenon evolved from the micro-voids to macro-crack. There are three main failure mechanisms behinds a ductile failure: adiabatic shear band (ASB), spall fracture, and crack. Since this type of thermo-mechanical phenomena involves large deformation and large scale plastic yielding, a meshfree method has intrinsic advantages in solving this kind of problems over the conventional finite element method. In this paper, the numerical methodologies including multi-physics approach for ASB, parametric visibility condition for crack propagation, and multi-scale approach to determine spall strength in simulating ductile failure have been reviewed. A thermo-mechanical coupling algorithm is proposed to incorporate reproducing kernel particle method (RPKM) with rate dependent Johnson-Cook model. Numerical simulations demonstrate that this meshfree method can capture the essential features of a ductile failure.

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APA Style
Ren, B., Qian, J., Zeng, X., Jha, A.K., Xiao, S. et al. (2011). Recent developments on thermo-mechanical simulations of ductile failure by meshfree method. Computer Modeling in Engineering & Sciences, 71(3), 253-278. https://doi.org/10.3970/cmes.2011.071.253
Vancouver Style
Ren B, Qian J, Zeng X, Jha AK, Xiao S, Li S. Recent developments on thermo-mechanical simulations of ductile failure by meshfree method. Comput Model Eng Sci. 2011;71(3):253-278 https://doi.org/10.3970/cmes.2011.071.253
IEEE Style
B. Ren, J. Qian, X. Zeng, A.K. Jha, S. Xiao, and S. Li "Recent Developments on Thermo-Mechanical Simulations of Ductile Failure by Meshfree Method," Comput. Model. Eng. Sci., vol. 71, no. 3, pp. 253-278. 2011. https://doi.org/10.3970/cmes.2011.071.253



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