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4 cards from this section. Quick, good the night before a test.
Define shear stress.
Think about how the forces are applied.
What is the formula for the polar moment of inertia for a solid shaft?
Remember the equation for solid shafts.
What is the formula to calculate shear stress in a circular shaft?
Focus on how torque relates to shear.
True or False: The polar moment of inertia for a solid shaft is J = πd^4/32.
Recall the formula you learned.
A circular shaft of 0.08 m diameter and length 1.5 m is subjected to a torque of 300 Nm. Calculate the shear stress at a distance of 0.04 m from the center and the angle of twist. Shear modulus is 70 GPa.
Utilize the correct formulas in steps.
Design a hollow shaft that can safely handle a torque of 1000 Nm without exceeding a shear stress of 50 MPa. Determine the outer and inner diameters, assuming a material with a shear modulus of 75 GPa.
Remember to rearrange the formula to find the necessary diameters.
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