Ply-drops must be taken into account in the design of composite structures due to the initiation and propagation of delaminations at ply-drop locations. This damage mode is experimentally investigated in tension-tension fatigue and the fatigue delamination growth rate is measured for two (external and internal) ply-drop geometries. It is found that the fatigue delaminations grow at a constant rate. Fracture mechanics, using the finite element method, is used to analyse the ply-drops. The influence of material and geometric parameters on the fracture energy release rate is investigated.
|Number of pages||8|
|Publication status||Published - 2018|
|Event||ECCM18 - 18th European Conference on Composite Materials - Athens, Greece|
Duration: 24 Jun 2018 → 28 Jun 2018
|Conference||ECCM18 - 18th European Conference on Composite Materials|
|Period||24/06/2018 → 28/06/2018|