Hybrid variational principles for non-smooth structural problems

摘要

Hybrid variational principles originally formulated in the context of linear elasticity are here revisited and generalized to include nonlinear material behaviours. Constitutive laws governed by convex potentials are taken into account so that finite-step plastic and visco-plastic problems can be analyzed by suitable specialization. An abstract formulation is adopted to present a unified treatement of hybrid variational principles for any special structural model.