Abstract
Understanding of composite bolted joint behaviour is vital since it has been widely used in application involving mechanically fastened joints. The advent of advanced technology had led to the use of hybrid composite to reduce the usage of non-environment friendly material such as synthetic fibre. This current study aims to investigate the effect of geometric parameters on the failure load of bolted joint hybrid composite laminate. Composite laminates were fabricated using hot press moulding compression method and they were cut according to the appropriate dimension with the width/diameter (W/D) and edge-distance/diameter (E/D) ratio of 3, 4, 5 and 6. The hole diameter of each composite laminate was fixed at 6 mm. Bolted joint tests were conducted in accordance to ASTM D5961 using the Universal Testing Machine and several failure modes were identified. The results concluded geometric parameters significantly affect both failure load and failure mode of hybrid composites. The increase in W/D and E/D ratio increase the load carrying capability of the laminate.
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