Yes Kaushal, this approach is correct.

What you also need to check is that the door has gone past peak deformation.  Your end time was 0.005 s. I don’t know if 0.005 s is long enough. Change the End Time to 0.050 s.

Plot the Directional Deformation (X-axis) of the Door.  Make sure that the maximum value increases to a peak and then starts to decrease. In that way, you know that you have seen the maximum stress during the impact event.