So after applying the 50N load on the D Pillar part at the point which is shown in fig 8, the deflection is
not greater than 2 mm & there is no residual deformation 3 minutes after the removal of the stress, or whitening
or loss of functionality that means the part is acceptable.
The graph of Force Vs Deflection for D Pillar part is shown in fig.9. The deflection in part for 50 N force
is 1.183 mm.