Question

Two pieces of material are interlocked as show in the figure and are pulled by forces p. If the ultimate stress in shear for the material is 50 Mpa, then what force p is required to fracture the pieces in shear ?

• A. 100 kN
• B. 66.67 kN
• C. 33.33 kN
• D. 50 kN

Answer 1

The correct option is D 50 kN

P = (Shear area) $\times$ (Shear stress)
= (20 $\times$ 50) $\times$ (50)
= 50 kN