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A method for separation of stresses in Two- and three-dimensional photoelasticity

Chandrashekhara, K and Jacob, KA (1976) A method for separation of stresses in Two- and three-dimensional photoelasticity. In: Journal of the Indian Institute of Science, 58 (8). pp. 331-344.

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Abstract

A method for separation of stresses in two and three-dimensional photo elasticity using the harmonisation ofjrst stress invariant along a straight section is deve- ,dped. For two-dimensions, the equations of equilibrium are reformulated in terms ojsum and difference of normal stresses and relations are obtained which can be used for harmonisation of the first invariant of stress along a straight section. A similar procedure is adopted for three-dimensions by making use of the Beltrmi-MicheN equations. The new relations are used in finite d~yerencefo rm to evaluate the sum of normal stresses along straight sections in a three-dimensional body. The method requires photoelastic data along the section as well ~rra djacent sections. This method could be used as an alternative to the shear d@erence method for separation of stresses in photoelasticity. 7he accuracy and reliability of the method is ver$ed by applying the method to problems whose solutions are known.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to Indian institute of science.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 20 Jan 2010 10:15
Last Modified: 19 Sep 2010 05:50
URI: http://eprints.iisc.ernet.in/id/eprint/24460

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