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Numerical analysis and simulations of a dynamic frictionless contact problem with damage. (English) Zbl 1120.74651
Summary: The process of dynamic frictionless contact between a viscoelastic body and a reactive foundation, which includes material damage, is modelled, numerically analyzed, and simulated. Contact is modelled with the normal compliance condition. The damage of the material, resulting from tension or compression, is described by the damage field which measures the pointwise fractional decrease in the load carrying capacity of the material. The evolution of the damage is governed by a parabolic differential inclusion. A fully discrete scheme for the problem is proposed, and error estimates on the numerical solutions derived. The scheme has been implemented and numerical simulations of the evolution of the mechanical state of the system and its material damage are presented.

MSC:
74M15 Contact in solid mechanics
74S05 Finite element methods applied to problems in solid mechanics
74H15 Numerical approximation of solutions of dynamical problems in solid mechanics
74R20 Anelastic fracture and damage
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