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2 cards from this section. Quick, good the night before a test.
What is torsional shear stress?
Think about what happens to materials when they twist.
Write the formula for shear stress in a shaft.
Remember the variables involved in torque and radius.
What does τ represent in the shear stress formula?
Think about what we’re calculating.
True or False: The greater the radius, the higher the shear stress for a given torque.
Consider the relationship in the shear stress formula.
A solid shaft of length 3 m and diameter 0.1 m is subjected to a torque of 250 N·m. Calculate the shear stress and the total angle of twist in radians.
Start with calculating J and use it in both shear stress and angle of twist formulas.
A hollow shaft with an outer diameter of 0.25 m and an inner diameter of 0.15 m carries a torque of 100 N·m. Calculate the maximum shear stress and compare it with the shear stress of a solid shaft of the same outer diameter.
Remember to apply the comparative aspect when discussing shear stress of hollow vs. solid.
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