Modelling gaps and overlaps for assessing the structural response of AFP composite structures by means of numerical simulation

Abstract

For the presented work the focus lies on the AFP composite manufacturing process where common manufacturing defects are investigated for their influence on the mechanical performance. These effects are caused by machine deviations, material variation and laminate designs that require ply angle transitions and consequently cutting of tows. The gap defect and the overlap defect are investigated using numerical approaches which are compared to experimental coupon test results.