Intersonic delamination in curved thick composite laminates under quasi-static loading

Experimental and computational study of the damage process in CFRP composite beams under low-velocity impact

“…In this paper, cohesive zone method (CZM) is chosen over other delamination modeling approaches such as virtual crack closure technique (VCCT) and extended finite element method (XFEM) due to its proven success in simulating dynamic crack initiation and propagation along interfaces [32,43,44]. To this end, a triangular bilinear response similar to the intralaminar damage model shown in Fig.…”

Quantifying the Delamination of L-Shaped Composite Laminates Under Low Velocity Impact Using X-Ray Computed Tomography

“…Most of the studies have focused on the deformation behavior of flat laminates while there were few studies that consider the curved laminates subjected to static loading [13][14][15][16], and low-velocity impact loading [17][18][19][20]. Interlaminar stresses causes delamination failure in curved laminates.…”

“…Interlaminar stresses causes delamination failure in curved laminates. L-shaped laminates were subjected to static loading using a special loading fixture [13,16] and using four-point bending fixture [15]. Wimmer et al [13] investigated formation of initial and growth of existing delaminations in laminates made of unidirectional carbon fiber reinforced epoxy.…”

“…Wimmer et al [13] investigated formation of initial and growth of existing delaminations in laminates made of unidirectional carbon fiber reinforced epoxy. Gozluku et al [16] studied dynamic delamination in L-shaped laminates. Delamination initiation and propagation were observed using high-speed camera.…”

“…In order to examine the effect of thickness and stacking sequence on the impact force history, three different thickness (16,20, and 24 ply), and two different stacking sequence (UD and XP) were considered. Impact force histories under 13.2 J are depicted in Figure 3 for 24 ply UD and XP, 20 ply UD and XP, and 16 ply UD laminates.…”