Failure analysis of composite pin loaded joints

An analysis was performed to evaluate the bearing strength of pin-loaded composite joints. The analysis involved using the Chang–Scott–Springer characteristic curve model and a two-dimensional finite element analysis to evaluate the stress distribution around the fastener hole. Characteristic lengths in tension and compression were evaluated by applying the point stress failure criterion to a center notch plate subjected to tensile loading and a plate containing a circular inclusion subjected to compressive loading. The Yamada–Sun failure criterion was used to evaluate joint failure. The results were compared with available experimental data and good correlation observed.