The aim of the present book is the formulation, mathematical study and
numerical treatment of static and dynamic problems in mechanics and
engineering sciences involving nonconvex and nonsmooth energy functions,
or nonmonotone and multivalued stress-strain laws. Such problems lead to
a new type of variational forms, the hemivariational inequalities, which
also lead to multivalued differential or integral equations. Innovative
numerical methods are presented for the treament of realistic
engineering problems. This book is the first to deal with variational
theory of engineering problems involving nonmonotone multivalue
realations, their mechanical foundation, their mathematical study
(existence and certain approximation results) and the corresponding
eigenvalue and optimal control problems. All the numerical applications
give innovative answers to as yet unsolved or partially solved
engineering problems, e.g. the adhesive contact in cracks, the
delamination problem, the sawtooth stress-strain laws in composites, the
shear connectors in composite beams, the semirigid connections in steel
structures, the adhesive grasping in robotics, etc. The book closes with
the consideration of hemivariational inequalities for fractal type
geometries and with the neural network approach to the numerical
treatment of hemivariational inequalities.