The Laboratory of Computational Solid Mechanics is engaged in analysis of nonlinear static and dynamic problems in the framework of finite element method in the fields of contact and impact of deformable bodies accompanied by geometric and material nonlinearities. Furthermore the wave propagation in heterogeneous and anisotropic environments by analytical and numerical methods and the evaluation and comparison of FEM models with experimental results are also fields of interest. In addition to this considerable effort is expended on the study of defects in crystalline materials experimentally and using the molecular dynamic method and on the electronic structure and total energy calculations of non-periodic systems using the finite element method or pseudopotential.