Which term describes load that causes twisting?

Which term describes load that causes twisting?

• A. Torsion load
• B. Eccentric load
• C. Axial load
• D. Compression

Answer: (A)

Twisting forces come from torque applied around a member’s longitudinal axis. That is called torsion load. It produces shear stresses on cross-sections and causes the material to twist along its length, which is the distinctive effect of torsion. An eccentric load, applied off the centroid, mainly creates a bending moment and bends the member rather than twisting it as the primary effect (even though some twist can occur if the load isn’t perfectly aligned). An axial load acts along the axis itself, producing uniform tension or compression without any twisting. Compression is simply a type of axial load.

Twisting forces come from torque applied around a member’s longitudinal axis. That is called torsion load. It produces shear stresses on cross-sections and causes the material to twist along its length, which is the distinctive effect of torsion.

An eccentric load, applied off the centroid, mainly creates a bending moment and bends the member rather than twisting it as the primary effect (even though some twist can occur if the load isn’t perfectly aligned). An axial load acts along the axis itself, producing uniform tension or compression without any twisting. Compression is simply a type of axial load.