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Assumed strain formulation for triangular C 0 plate elements based on a weak form of the Kirchhoff constraints
Author(s) -
Stolarski H. K.,
Chiang M. Y. M.
Publication year - 1989
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620281009
Subject(s) - quadrilateral , shear (geology) , mathematics , element (criminal law) , mathematical analysis , strain energy , strain (injury) , finite element method , geometry , physics , materials science , thermodynamics , composite material , medicine , political science , law
Application of a weak form of the Kirchhoff constraints in the formulation of triangular assumed shear strain C 0 plate element is described. It is shown that, compared to a similar formulation of the quadrilateral elements, formulation of the triangles requires some additional considerations which lead to additional terms in the energy expression. With those terms performance of the assumed shear strain triangular elements is comparable to that of the quadrilateral elements.