Dynamic instability assessment of carbon nanotube/fiber/polymer multiscale composite skew plates with delamination based on HSDT

We carried out a dynamic instability assessment of carbon nanotube reinforced composite (CNTRC) and carbon nanotubes/fiber/polymer composite (CNTFPC) skew plates with delamination based on the high-order shear deformation plate theory (HSDT). The multiscale interactions between carbon nanotube (CNT) ratios, skew angles and delamination sizes on the dynamic instability for various length-thickness ratios are studied using a two-dimensional finite element delamination model developed for this study. The results were verified by those reported in the literature for undelaminated cases show the interactions between the CNT reinforcement and delamination sizes in the skew laminate. Numerical examples show the importance of CNT reinforcement when assessing the dynamic instability of CNTRC and CNTFPC skew plates with delamination.