Finite Element Analysis of Composite Sandwich Panel Under Static Load condition

Definition of composite material terminology:-

composite materials:- 

A Composite material is a material made from two or more constituent materials with different physical or chemical properties .when it is combined it produces a material with characteristics different from the individual components.

Orthotropic martial:-

Orthotropic materials have material properties that differ along three mutually-orthogonal twofold axes of rotational symmetry and their properties change when measured from different directions.

Anisotropy:-

 is the property of material which depends on direction, which implies different properties in different directions, opposite to that of  isotropy. It can be defined as a difference, when measured along different axes, in a material's physical or mechanical properties.