Question

For a rectangular cross section beam, subjected to transverse loading, the ratio of Maximum shear stress to average shear stress across the crossection is:

• A. 2
• B. 2/3
• C. 1
• D. 3/2

Answer 1

Answer:

D. 3/2

For a rectangular cross section beam, maximum shear stress, $\tau_{max} = \frac 32 \tau_ {Avg} \Rightarrow \frac {\tau_{max}} {\tau_{Avg}} = \frac 32$ = stress to average shear stress ratio of Maximum shear