# Combined Shear and Torsion

## Problem 01 | Stress in Helical Spring

**Situation**

The helical spring shown is axially loaded with a compression force *P* equal to 5 kN. The mean diameter of the spring is 100 mm and the wire used is 10 mm as indicated in the figure.

- What is the shear stress at
*A*? - What is the shear stress at
*B*? - On diameter
*AB*, locate the point of zero stress measured from*C*.