| Abstract : The standard equations of linear elasticity have served well over many generations to describe small displacements of elastic systems subject to a variety of forces and/or stresses. However, computations quickly reveal the limitations of these equations in modelling even moderately large displacements. Very general nonlinear approaches exist in the literature but are often too abstract and complex for use in practical applications. In this talk we describe a specific class of nonlinear systems which seems well adapted to computational implementation. Both analytical studies and computational simulations are described |