Abstract:A variational inequality formulation is derived for some frictional contact problems from
linear elasticity. The formulation exhibits a two-fold saddle point structure and is of
dual-dual type, involving the stress tensor as primary unknown as well as the friction
force on the contact surface by means of a Lagrange multiplier. The approach starts with
the minimization of the conjugate elastic potential. Applying Fenchel's duality theory to
this dual minimizatio… Show more
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