FLAT TRIANGULAR SHELL ELEMENT WITH IMPROVED MEMBRANE INTERPOLATION.

Nicholas Carpenter, Henryk Stolarski, Ted Belytschko

Research output: Contribution to journalArticle

67 Scopus citations

Abstract

An 18 degrees-of-freedom flat triangular shell element is formulated using the DKT bending element and a new membrane stress formulation. The membrane stress formulation is based on a degenerate linear strain triangle utilizing in-plane rotations at each node. This new formulation is very simple and satisfies the plane stress patch test. Based on the numerical results from a rigorous set of test problems, the new formulation is shown to be an improvement over earlier attempts to improve the membrane stress in the shell element.

Original languageEnglish (US)
Pages (from-to)161-168
Number of pages8
JournalCommunications in Numerical Methods in Engineering
Volume1
Issue number4
StatePublished - Jul 1 1985

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