|
Abstract
|
In the present research, the dynamic responses of the multilayer functionally graded graphene
platelets reinforced composite (FG-GPLRC) spherical panels under blast loading are studied.
Three-dimensional elasticity theory is employed to derive the governing equations. The
distribution of graphene platelets (GPLs) in each layer is uniform and random with a constant
weight fraction. GPLs concentration across the panel thickness may be uniform or graded.
The layerwise-di®erential quadrature method (LW-DQM) together with a non-uniform rational
B-spline-based multi-step time integration scheme is used to discretize the motion equations. The
convergence behavior of the method is examined numerically. Further, to assure its accuracy, the
results in the limit cases are compared with those available in the literature. Finally, through the
parametric studies, the e®ects of material and geometrical parameters such as GPLs distribution
patterns,GPLs weight fraction and dimension ratios on the transient responses of the FG-GPLRC
spherical panels subjected to blast loading are investigated.
|