Experimental and Numerical Study on Mechanical Properties of Z-pins Reinforced Composites Adhesively Bonded Single-Lap Joints

The mechanical properties of Z-pins reinforced composites adhesively bonded single-lap joints (SLJs) under un-directional tension loading are investigated by experimental and numerical methods. Three kinds joint configurations, including SLJs with three/two rows “I” array Z-pins, test. failure modes mechanism different numbers alignment analyzed, the comparison is performed for strengths no joints. According to results, three all mixed failure. It turns out that pulled ultimately. strength more at end overlap area relatively bigger same numbers. compared non growing 16%. Finally, three-dimensional distribution interfacial stress in lap zone simulated, results good agreement results. effective calculation analysis verified.