An inverted T-section is subjected to a shear force F. The maximum shear stress will occur at:

Cross-section

Stress Distribution

Inverted T – Section

• Shear stress is maximum at the neutral axis.

T – Section

• Shear stress is maximum at the neutral axis.

Rectangular section

• Shear stress is parabolic.
• Shear stress is maximum at the neutral axis.
• ${\tau }_{max}=\frac{3}{2}{\tau }_{avg}$

Triangular section

• Shear stress is parabolic.
• Shear stress is maximum at mid-height.
• ${\tau }_{NA}=\frac{4}{3}{\tau }_{avg}$
• ${\tau }_{max}=\frac{3}{2}{\tau }_{avg}$

Circular section

• Shear stress is parabolic.
• Shear stress is maximum at the neutral axis.
• ${\tau }_{max}=\frac{4}{3}{\tau }_{avg}$

I section

• Shear stress is parabolic in the web and flange both.
• Shear stress is maximum at the neutral axis.

+ Cross section

• Shear stress is parabolic in both web and flange.
• Shear stress is maximum at the junction of the web and flange.