Anisotropic material

Anisotropy is the property of being directionally dependent, as opposed to isotropy, which means homogeneity in all directions. It can be defined as a difference in the physical property of a certain material when measured along different axes. Most structural materials are anisotropic, which means that their material properties vary with orientation. 

I want to assign a material property so that it addresses this anisotropic behavior. Which card image is for anisotropic material, and how can I determine which direction is which while analyzing the simulation results?