Szukana fraza: [Abstract = The pure displacement finite element is improved by the locking avoiding methods\: ANS and EAS. The element is efficient for the nonlinear analysis of thin structures. The mechanical modelling of delamination onset and propagation is based upon a cohesive zone. The onset of delamination is predicted by the stress\-based Hashin criterion. The condition of delamination propagation is based on a critical energy release rate.]
