Stress distribution in a five-layer circular sandwich composite plate based on the third and hyperbolic shear deformation theories

摘要

Layerwise theory along with the third-order shear deformation theory (TSDT) and hyperbolic shear deformation theory (HSDT) is used to determine the analytical and finite element analysis (FEA) for adhesive behavior in a uniformly loaded circular plate. Two adhesive layers adhere the core to its surrounding functionally graded face sheets. Results indicate that FEA findings give almost similar estimations on planar stresses compared to analytical solutions based on TSDT and HSDT. However, the out-of-plane shear stresses predicted by HSDT are closer to FEA findings. Additionally, to control plate deflection and stresses in the adhesive layer, it is advisable to choose E-core/E-foam similar or equal to 2.