Patch test verification of a triangular thin-shell element based on discrete Kirchhoff theory

Autor:	S. Sridhara Murthy, R. H. Gallagher
Rok vydání:	1987
Předmět:	Engineering business.industry Shell element Mathematical analysis General Engineering Patch test Bending Rigid body Displacement (vector) Finite element method Calculus Element (category theory) business Extended finite element method
Zdroj:	Communications in Applied Numerical Methods. 3:83-88
ISSN:	1555-2047 0748-8025
DOI:	10.1002/cnm.1630030202
Popis:	A new curved triangular thin-shell finite element, based on nonconforming displacement fields, has demonstrated its effectiveness in a variety of numerical examples.8 The patch test is applied to that element in the present paper. The element formulation is outlined, the special characteristics of the patch test for curved thin-shell elements are described, and that test is performed for the conditions of the inextensional bending, membrane stretching and rigid body displacements. Excellent results are obtained for element subtending angles up to 16 degrees.
Databáze:	OpenAIRE
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