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Observations regarding assumed‐stress hybrid plate elements
Author(s) -
Cook Robert D.,
Ladkany Samaan G.
Publication year - 1974
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.1620080307
Subject(s) - quadrilateral , enhanced data rates for gsm evolution , displacement (psychology) , stress (linguistics) , quadratic equation , stress field , mathematics , structural engineering , geometry , field (mathematics) , mathematical analysis , finite element method , engineering , pure mathematics , psychology , telecommunications , linguistics , philosophy , psychotherapist
Edge displacement of assumed‐stress hybrid plate elements are commonly chosen as either linear, quadratic or cubic functions of the edge co‐ordinate. The present paper examines the effect of this choice on the acceptability, accuracy, and possible zero energy modes of elements based on a linear stress field. It is concluded that triangular elements may be preferable to quadrilaterals, and that linear edge displacements are not desirable.