Shear Stress

Written by Jerry Ratzlaff on . Posted in Classical Mechanics

shear stress 1Shear stress, abbreviated as \(\tau\) (Greek symbol tau), tends to deform the material by breaking rather than stretching without changing the volume by restraining the object.  Shear stress is the amount of force per unit area perpendicular to the axle of the object.

 

Formulas that use Shear Stress

\(\large{ \tau = \frac{F}{A_c}  }\)   
\(\large{ \tau = \frac{ 8 \; K \; D }{ \pi \; d^3 } \; F_s }\) (spring) (occures on the inside surface of the coils)

Where:

\(\large{ \tau }\) (Greek symbol tau) = shear stress

\(\large{ F }\)  = applied force

\(\large{ A_c }\) = area cross-section of material perpendicular to the applied force

\(\large{ D }\) = mean coil diameter

\(\large{ \pi }\) = Pi

\(\large{ F_s }\) = spring force

\(\large{ K }\) = Wahl correction factor

\(\large{ d }\) = wire diameter

 

Tags: Equations for Strain and Stress Equations for Spring