Shear Stress divided by the Angle of Shear is equals to Shear Stress divided by Shear Strain which is also equals to a constant value known as the Shear Modulus. Shear Modulus is determined by the material of the object.

the average shear stress is 3/4 the maximum shear stress for a circular section

Shear force is a load (pounds, or newtons) in plane of the object which produces shear stress ( pounds per sq inch, or Pascals).

Shear force is related to shear stress as

STRESS = FORCE/AREA

The forces are equal magnitude but opposite directions act tangent the surfaces of opposite ends of the object

the shear stress as force "f" acting tangent to the surface,dived by the "area"{a}

shear stress=f/a

Shear stress in science is a type of stress in which an object that has a force acting upon it is applied to skew. This causes shear strain, which can change the shape of the object.