Journal article
Recent Developments on Thermo-Mechanical Simulations of Ductile Failure by Meshfree Method
Computer modeling in engineering & sciences, Vol.71(3), pp.253-277
01/01/2011
DOI: 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.
Details
- Title: Subtitle
- Recent Developments on Thermo-Mechanical Simulations of Ductile Failure by Meshfree Method
- Creators
- B. Ren - University of California, BerkeleyJ. Qian - University of California, BerkeleyX. Zeng - University of California, BerkeleyA. K. Jha - NextGen AeronauticsS. Xiao - University of IowaS. Li - University of California, Berkeley
- Resource Type
- Journal article
- Publication Details
- Computer modeling in engineering & sciences, Vol.71(3), pp.253-277
- Publisher
- Tech Science Press
- DOI
- 10.3970/cmes.2011.071.253
- ISSN
- 1526-1492
- eISSN
- 1526-1506
- Language
- English
- Date published
- 01/01/2011
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984201541302771
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