How Do You Calculate The Modulus Of Rigidity?
Modulus of Rigidity, or Shear Modulus, is an experimentally derived number that represents the degree of elasticity a material displays under shear stress. Shear Modulus is important to various engineering problems, such as the question of how much a set of connections will yield in a vehicle when loaded. The formula for Modulus of Rigidity is a material’s shear stress divided by shear strain. The process varies slightly, depending on whether the shear stress is due to a linear force or to torque. Draw a free-body diagram. A free-body diagram is a schematic drawing that shows the object of interest isolated from any surrounding parts. Instead of drawing external parts or objects, replace them with representations for the vector forces they create. Calculate the amount of shear force acting on any cross section of the object. This is simply a matter of looking at your free-body diagram and adding or subtracting parallel forces. Calculate the area of the face affected by the shear force.
