A node-to-node scheme with the aid of variable-node elements for elasto-plastic contact analysis

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A strategy for a two-dimensional contact analysis involving finite strain plasticity is developed with the aid of variable-node elements. The variable-node elements, in which nodes are added freely where they are needed, make it possible to transform the non-matching meshes into matching meshes directly. They thereby facilitate an efficient analysis, maintaining node-to-node contact during the contact deformation. The contact patch test, wherein the contact patch is constructed out of variable-node elements, is thus passed, and iterations for equilibrium solutions reach convergence faster in this scheme than in the conventional approach based on the node-to-surface contact. The effectiveness and accuracy of the proposed scheme are demonstrated through several numerical examples of elasto-plastic contact analyses.
Publisher
WILEY-BLACKWELL
Issue Date
2015-06
Language
English
Article Type
Article
Keywords

MAXIMUM PLASTIC DISSIPATION; MULTIPLICATIVE DECOMPOSITION; DOMAIN METHOD; PATCH TEST; FORMULATION; FRAMEWORK; ALGORITHM; FRICTION

Citation

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, v.102, no.12, pp.1761 - 1783

ISSN
0029-5981
DOI
10.1002/nme.4862
URI
http://hdl.handle.net/10203/198944
Appears in Collection
ME-Journal Papers(저널논문)
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