Polyhedral elements using an edge-based smoothed finite element method for nonlinear elastic deformations of compressible and nearly incompressible materials

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Polyhedral elements with an arbitrary number of nodes or non-planar faces, obtained with an edge-based smoothed finite element method, retain good geometric adaptability and accuracy in solution. This work is intended to extend the polyhedral elements to nonlinear elastic analysis with finite deformations. In order to overcome the volumetric locking problem, a smoothing domain-based selective smoothed finite element method scheme and a three-field-mixed cell-based smoothed finite element method with nodal cells were developed. Using several numerical examples, their performance and the accuracy of their solutions were examined, and their effectiveness for practical applications was demonstrated as well.
Publisher
SPRINGER
Issue Date
2017-10
Language
English
Article Type
Article
Keywords

SOLID MECHANICS PROBLEMS; VARIABLE-NODE ELEMENTS; METHOD NS-FEM; LINEAR ELASTICITY; TOPOLOGY OPTIMIZATION; INCOMPATIBLE MODES; PROJECTION METHODS; STRAIN ANALYSIS; INTEGRATION; FORMULATION

Citation

COMPUTATIONAL MECHANICS, v.60, no.4, pp.659 - 682

ISSN
0178-7675
DOI
10.1007/s00466-017-1433-0
URI
http://hdl.handle.net/10203/227217
Appears in Collection
ME-Journal Papers(저널논문)
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