An I section of depth 100 mm has an area of 1000 𝑚𝑚 2. A plate of 100 mm ×5 mm is then welded to the top flange of this beam. This composite section is used as a simply supported beam. What will be the ratio of the maximum tensile stress to the maximum compressive stresses on this composite section under pure bending of beam?
A. 1.22
B. 1.30
C. 1.41
D. 1.59
Answer:D
An I section of depth 100 mm has an area of 1000 𝑚𝑚 2. A plate of 100 mm ×5 mm is then welded to the top flange of this beam. This composite section is used as a simply supported beam. What will be the ratio of the maximum tensile stress to the maximum compressive stresses on this composite section under pure bending of beam?
A. 1.22 B. 1.30 C. 1.41 D. 1.59