Shear Flow

Which is/are the right formula t determine the shear stress at y’ on the cross-section given?

• A

• B

• C

• D

Which area should be used to calculate the shear flow for the two connections shown?

• A

• B

• C

• D

Determine the location of maximum shear stress on the beam cross section when subjected to a loading given in the figure.

• A

• B

• C

• D

For a rectangular cross-section, what is the relation between the maximum shear stress and the average shear stress?

• $\tau_{\max}=\tau_{avg}$

• $\tau_{\max}=1.5\tau_{avg}$
  

• $\tau_{\max}=2\tau_{avg}$

• $\tau_{\max}=3.0\tau_{avg}$

Why the timber beam in the figure splits through the neutral axis at the beam’s ends?

• The beam has maximum compression stress at the end.

• Maximum tensile stress at the beam neutral axis.

• Maximum moment causes the beam to split at the end.

• Max shear stress is at the neutral axis and the highest shear force is at the beam’s end.