Delaminations in composite plates under transverse impact loads — Experimental results

Fatigue behavior of carbon/epoxy composites under pretorsion and low‐energy impact effects

“…Strait et al (1992) found that: low velocity impact induced damage which was matrix cracking, debonding of interface and delamination; high velocity induced damage, which included not only the above, but also, fiber breakage and pullout. Finn et al (1993) reported that fracture toughness was the primary factor that controlled the delamination size. Found et al (1997) determined that for CFRP in impact loading events, the largest deformation and the peak force were the significant factors influencing the extent of structural damage.…”

A Virtual Testing Approach for Laminated Composites Based on Micromechanics

“…It constitutes a significant improvement over the standard version developed over some 20 years and available in many industrial structural analysis programs [23][24][25][26]. A last step has been done recently in [27] with the mesomodeling of the interaction between microcracking in plies and delamination which is a quite important observed phenomenon [28][29][30][31][32][33][34][35][36][37].…”

Optical Evaluation on Delamination Buckling of Composite Laminate with Impact Damage

“…The increasing applications of composite material inevitably cause the risks from low velocity impact (LVI) damage by foreign object, such as a dropped tool or runway debris. The impact damage, mostly delamination, is especially dangerous for the composite structure because it is difficult to detect by visual inspection on the surface [1,2]. Under in-plane compression, damaged composite laminate may generate delamination buckling and growth until the final failure of the structure [3].…”