Explicit modeling of matrix cracking and delamination in laminated composites with discontinuous solid-shell elements

A crack-tip element for modelling arbitrary crack propagations

“…Let consider an element which is cut through by a crack segment as shown in the left sub-figure of Fig. 2, the strong discontinuity formed by the crack is treated by using the floating node method (FNM) [34,37]. In the FNM, additional floating nodes are introduced which are moved to the two ends of the crack if an element is cut through as shown in Fig.…”

“…Complex crack networks with multiple cracks in an element can be represented directly by forming sub-elements that are conforming to the cracks. So far, applications of FNM on fracture problems have been reported in numerous publications, ranging from single-crack to manycrack problems on isotropic and composite materials [35][36][37][38][39][40][41][42][43][44][45].…”

Coupling of peridynamics and inverse finite element method for shape sensing and crack propagation monitoring of plate structures

“…Albeit their high specific strength and corrosion resistance properties, composite materials are prone to complex damage/failure mechanisms. These may include delaminations [81], fiber/matrix cracking [82], and face/core debonding [83] due to the continuous operational loading conditions over the service life of a structure. Current SHM methods to prognose full-field detail of gradual damage accumulation inside these composite materials followed by abrupt failure may be limited due to their simplified/inherent assumptions.…”

Effects of planimetric position of delamination on compressive failure of composite laminates

“…A. Mekonnen et al [9] concluded that the buckling shape depends on the length and depth of the initial delamination. A novel discontinuous solid-shell finite element combined with a 3D enriched cohesive element is formulated by Zhi et al [10] for the analysis of matrix cracking and delamination in multilayered composites. Ameri et al [11] Found that the influence of delamination on curved plate is smaller than that on flat plate.…”