The example below shows the effect of changing material angle for a simple Orthotropic material ‘Isotropic’ E1 = 210000 E2 = 210000 Deflection = 6.291 Stress = 66.05 Orthotropic X axis E1 = 210000 (X) E2 = 2100 (Y) Deflection = 6.347 Stress = 66.38 Orthotropic Y axis E1 = 210000 (Y) E2 = 2100 (X) Deflection = 634.9 Stress = 65.72 Orthotropic material definition and Analysis 2