Impact analysis of arbitrarily-shaped bodies using a finite element method and a smoothed particle hydrodynamics method
- Title
- Impact analysis of arbitrarily-shaped bodies using a finite element method and a smoothed particle hydrodynamics method
- Author
- 박대효
- Keywords
- impact analysis; contact problem; lagrange multiplier method; fem; meshless method; smoothed particle hydrodynamics
- Issue Date
- 2017-03
- Publisher
- WILEY
- Citation
- INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, v. 109, no. 10, page. 1490-1520
- Abstract
- We propose a new method to obtain contact forces under a non- smoothed contact problem between arbitrarily- shaped bodies which are discretized by finite element method. Contact forces are calculated by the specific contact algorithm between two particles of smoothed particle hydrodynamics, which is a meshfree method, and that are applied to each colliding body. This approach has advantages that accurate contact forces can be obtained within an accelerated collision without a jump problem in a discrete time increment. Also, this can be simply applied into any contact problems like a point- to- point, a point- to- line, and a point- to- surface contact for complex shaped and deformable bodies. In order to describe this method, an impulse based method, a unilateral contact method and smoothed particle hydrodynamics method are firstly introduced in this paper. Then, a procedure about the proposed method is handled in great detail. Finally, accuracy of the proposed method is verified by a conservation of momentum through three contact examples. Copyright (C) 2016 John Wiley & Sons, Ltd.
- URI
- https://onlinelibrary.wiley.com/doi/abs/10.1002/nme.5338https://repository.hanyang.ac.kr/handle/20.500.11754/113312
- ISSN
- 0029-5981; 1097-0207
- DOI
- 10.1002/nme.5338
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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