Impact analysis of arbitrarily-shaped bodies using a finite element method and a smoothed particle hydrodynamics method
- Authors
- Tak, Moonho; Park, Taehyo
- Issue Date
- Mar-2017
- Publisher
- WILEY
- Keywords
- impact analysis; contact problem; lagrange multiplier method; fem; meshless method; smoothed particle hydrodynamics
- Citation
- INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, v.109, no.10, pp.1490 - 1520
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
- Volume
- 109
- Number
- 10
- Start Page
- 1490
- End Page
- 1520
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/4269
- DOI
- 10.1002/nme.5338
- ISSN
- 0029-5981
- 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.
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