Modeling and Analysis of an Elastic Problem with Large Displacements and Small Strains

In this paper we present and analyze a geometrically nonlinear formulation that models the unsteady motion of two and three-dimensional elastic structures in the case of large displacements-small strains. In a first part (Section 2) we derive the equations describing the motion of the body. In a second part (Section 3), existence of a weak solution is proved using a Galerkin method. We also prove that the solution is unique.ou