Accurate shear force evaluation with a simple bi-linear plate bending element

Prathap, Gangan and Rameshbabu, C (1986) Accurate shear force evaluation with a simple bi-linear plate bending element. In: International Symposium on Composite Materials and Structures, 10-13 Jun 1986, Beijing, China.

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Abstract

The stress recovery at nodes from simple shear flexible plate elements is often unreliable. In this paper, the optimal locations at which shear forces are accurate are identified and used to study stresses in typical plate problems. The rapid variation of shear forces at free13; edges and corners of shear flexible plates is related to the distinction made in Kirchhoff theory between shear forces and the so-called effective shear reactions. The present study suggests that the use of the Kirchhoff shear reaction at edges in classical plate theory is ambiguous and confirms a recent finding that the three Poisson instead of the two Kirchhoff boundary conditions may be more appropriate on the edge of a thin plate, especially if the edge is unsupported.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Bend tests;Elastic plates;Rectangular plates;Shear strength;Stress analysis;Thin plates;Accuracy;Boundary value problems;Linearity
Subjects: ENGINEERING > Structural Mechanics
Division/Department: Structures Division, Structures Division
Depositing User: M/S ICAST NAL
Date Deposited: 14 Jan 2008
Last Modified: 24 May 2010 09:55
URI: http://nal-ir.nal.res.in/id/eprint/4313

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