IJPAM: Volume 75, No. 3 (2012)
ISOTROPIC LINEAR ELASTIC MATERIALS
Department of Mathematics ``Giuseppe Peano''
University of Turin
Via Carlo Alberto 10, Turin, 10123, ITALY
Abstract. In this paper we discuss some problems involving simple shear in incompressible isotropic linear elastic materials within the framework of the linearized finite theory of elasticity. First we obtain for a simple shear a universal relation in terms of components of the first Piola-Kirchhoff stress tensor. Afterwards for a rectangular block deformed by a simple shear we evaluate the absolute error and the relative error both for the Piola-Kirchhoff tractions and the Cauchy tractions calculated by classical linear elasticity. Finally we discuss two dead load problems corresponding to different Piola-Kirchhoff tractions by using both the linearized finite theory of elasticity and the classical linear elasticity. The first problem can be solved only in linearized finite theory of elasticity and the solution is a simple shear. The second problem admits a simple shear as a solution in both theories, so that we can compare the solutions.
Received: November 18, 2011
AMS Subject Classification: 74B99, 74A05, 74A10, 74G05
Key Words and Phrases: simple shear, incompressible isotropic materials, linearized finite elasticity
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Source: International Journal of Pure and Applied Mathematics
ISSN printed version: 1311-8080
ISSN on-line version: 1314-3395