Difference Between Isotropic and Orthotropic

materials have chemical and physical properties. Physical properties can be either mechanical properties or thermal properties. Materials can be categorized as isotropic, anisotropic or orthotropic based on the measured values for mechanical and thermal properties. The main difference between isotropic and orthotropic is that isotropic means having uniform mechanical and thermal properties in every direction whereas orthotropic means not having uniform mechanical and thermal properties in every direction.