Standards suggest that reflectance value for walls should be 50-70%, floor 20 40% and for ceiling 60 80%. Therefore by checking up on against these recommendations, 27 cases are shortlisted. Out of these, finally 9 cases are selected. The 27 cases are reduced to 9 cases.
Axial Stress. Fig. Axial Stress (aka compressive stress, tensile stress) is a measure of the axial force acting on a beam quantitatively measuring the internal forces acting within in the beam. Compressive stress means the member is in compression (being smashed) vs. tensile stress which means the beam is in tension (being pulled apart).
This factor is applied to the axial stress produced in the median plane of the specimen (barreled curve). The total axial stress at the time of shearing is sum of major and minor stresses. By the axial stress of the membrane voltage there is a complex condition and the resulting shape known as umbrella. On the other hand the axial stress and hoop stress in the outer region are both compressive nature.