Article Contents
Article Contents

# Dual formulation of a viscoplastic contact problem with unilateral constraint

• We consider a mathematical model which describes the contact between a viscoplastic body and an obstacle, the so-called foundation. The process is quasistatic, the contact is frictionless and is modelled with unilateral constraint. We derive a variational formulation of the model which leads to a history-dependent quasivariational inequality for stress field, associated to a time-dependent convex. Then we prove the unique weak solvability of the model. The proof is based on an abstract existence and uniqueness result obtained in [11].
Mathematics Subject Classification: Primary: 74M15, 74G25; Secondary: 49J40.

 Citation:

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