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Failure Analysis of Pin Joint of Carbon/Epoxy Composite Plate

This paper deals with the failure analysis of a carbon fibre reinforced plastic (CFRP) plate which is joined to a structure using a steel pin. The analysis was carried out experimentally and numerically using the finite element method (FEM) system MSC.Marc. The Puck´s failure criterion for 3D stress state was used after its implementation into the MSC.Marc system. Experimental specimens were symmetrical laminates with 8 layers. A special experimental device which allowed monitoring of all visible changes of the experimental specimens with cameras was designed. This device was installed into the testing machine Zwick/Roell Z050. Obtained images were evaluated using the digital image correlation technique. Moreover, the vibrations in the surroundings of the specimens were measured to detect acoustic emissions which occur during damage.