Simulation of the Delamination of Polymer Composite Materials during Mode I Fracture

—A computational–experimental study of the delamination of carbon fiber reinforced plastic based on a medium-strength SYT49S carbon bundle and a VSE-1212 epoxy matrix is performed. The cohesive zone of a beam with overhanging ends under mode I fracture conditions is simulated. The features of determining the model parameters (interface strength, interface stiffness, cohesive zone length) for estimating the characteristic model element size are discussed.