해밀토니안의 시간 불연속 변분적분기를 이용한 탄소성 응력파 해석Analysis of Elasto-Plastic Stress Waves by a Time-Discontinuous Variational Integrator of Hamiltonian

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This paper is concerned with the analysis of elasto-plastic stress waves by a time discontinuous variational integrator based on Hamiltonian in order to more accurate results in one dimensional dynamic problem. The proposed algorithm adopts both time-discontinuous variational integrator and space-continuous Hamiltonian so as to capture discontinuities of stress waves. This study enables to preserve total mechanical energy such as internal energy, kinetic energy and dissipative energy due to plastic deformation for long integration time. Finite element analysis of elasto-plastic stress waves is carried out in order to demonstrate the accuracy of the proposed algorithm.
Publisher
한국소성가공학회
Issue Date
2008-05-08
Language
KOR
Citation

한국소성가공학회 2008년도 춘계학술대회, pp.231 - 234

URI
http://hdl.handle.net/10203/14528
Appears in Collection
ME-Conference Papers(학술회의논문)

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