Finite Element Formulation of Three-dimensional Nonlinear Elasticity Problem
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2005-04
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Bedřich Sousedík, Pavel Burda: Finite element formulation of three-dimensional nonlinear elasticity problem, Proceedings of the Seminar of applied mathematics in commemoration of the 100th birthday of Prof. Vyčichlo, Faculty of Civil Engineering, Czech Technical University in Prague, Prague, Czech Republic, April 2005
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Abstract
The purpose of the present work is to give a brief description of the
finite elasticity and of its approximation via finite element method. We
formulate the problem for the case of compressible elasticity. Weak formulation allows to use any isotropic hyperelastic material model that
satisfies polyconvexity assumptions. Discretization using FEM leads to
systems of non-linear equations. Finally we also show the strategy of
solving such systems of equations by modification of Newton’s method
that can be used under some restrictions.