Computational and experimental approaches for Mode I delamination problems

The paper presents methods and procedures of computational and experimental approach of modeling and analysis of problems with Mode I delamination. One of the main goals of the work is to focus on the interface between anisotropic materials in a computational model and its consideration under stress. The paper presents a numerical method for the prediction of a damaged interface based on a variational formulation that is implemented using the symmetric Galerkin boundary element method. The calculation part consists of interface analysis considering the cohesive type of contact. The damaged interface between anisotropic domains is analyzed under loading in Mode I. Stress, deformation quantities and damage are calculated using methods of nonlinear programming. The experimental evaluation of the Mode I delamination is presented in a comparison with the values obtained from the computations. The experience and recommendations related to the use of carbon fiber reinforced polymer composite materials are presented.