The Inter-laminar Stress of a Cross-ply Laminated Hybrid Composite Plate under AxialExtension

A layer-wise theory was used to obtain the inter-laminarstresses in a cross-ply laminated hybrid composite,which is subjected to axial extension. Graphite/Epoxyand Kevlar or Glass/Epoxy with cross-ply layups wereassumed for composite laminates. To validate thelayerwise theory (LWT), the results were compared tothe results of the finite element method (FEM) for alaminated plate and excellent agreement is seen in thecomparision. The effects of hybridization on theinterlaminar stresses are discaussed. Equations ofmotion, stress-strain relations and strain-displacementrelations were used to define the governing equations ofthe plate. It is observed that LWT is an efficient methodto analyze the inter-laminar stresses in hybrid composite

کلیدواژه ها:

Laminated hybrid composite plates ، Inter-laminarstresses ، Layer-wise theory ، Axial extension