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).
Peak Stress. Definition(s) Peak Stress. Part of stress, which is additive to the respective primary and secondary stresses, to form the total stress. NOTE Peak stresses do not cause any noticeable distortion and are only important to fatigue and brittle fracture in conjunction with primary and secondary stresses.