Abstract
This chapter discusses the Elastomer models. Many rubberlike solids can be treated as isotropic and incompressible elastic materials to a high degree of approximation. This chapter describes the mechanical properties of such solids through the use of an isotropic elastic strain-energy function in the context of finite deformations. Locally, the finite deformation of a material can be described in terms of the three principal stretches. The material is isotropic relative to an unstressed undeformed (natural) configuration, and its elastic properties are characterized in terms of a strain-energy function per unit volume. In addition, the chapter explains how to use the strain energy functions. The strain-energy function is incorporated in many commercial Finite Element (FE) software packages, such as ABAQUS and MARC, and can be used in terms of principal stretches and principal stresses in the FE solution of boundary-value problems.
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