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Some modifications of an isoparametric shell element
Author(s) -
Takemoto H.,
Cook Robert D.
Publication year - 1973
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.1620070315
Subject(s) - shell (structure) , extrapolation , element (criminal law) , gauss , stiffness , finite element method , degrees of freedom (physics and chemistry) , structural engineering , mathematics , geometry , node (physics) , mathematical analysis , engineering , physics , mechanical engineering , quantum mechanics , political science , law
The subject of this paper is the eight‐node shell element of Reference 1. The following options in element formulation are discussed: an alternate form of co‐ordinate transformation between global and shell co‐ordinates, use of stiffness coefficients for sandwich construction and inclusion of internal degrees of freedom. Numerical examples show the effects of adding internal freedoms, and serve to compare stresses calculated directly at element nodes with those obtained by extrapolation from values at the Gauss points.