Experimental and numerical study of delamination caused by local buckling of thermoplastic and thermoset composites

Experimental and numerical studies of delamination caused by local buckling have been carried out on thermoset and thermoplastic carbon-fibre composites. The propagation of delamination appears only after the appearance of macrocracks in the buckling plies. In the first part of this work, acoustic emission (Felicity ratio) is used to qualify damage accumulation before propagation of delamination. The second part deals with the determination of...