Concept review: torsion loading

Purpose

This optional learning activity will help you review the concepts of torsion loading. (It does not assess problem-solving ability, however.)

• Module 06 Objective 1 Use shear stress arrows to illustrate the direction and relative magnitude of the shear stress distribution on a circular or hollow circular cross-section of a torsion-loaded shaft.
• Module 06 Objective 2 List the conditions necessary for the elastic torsion formula to be valid.
• Module 06 Objective 3 Analyze a statically-determinate system of torsion loaded shafts and tubes.
• Module 06 Objective 4 Use appropriate symbols to represent angles of twist and rotation angles
• Module 06 Objective 5 Report angles of twist and rotation angles with appropriate SI and US customary units.
• Module 06 Objective 6 List the conditions necessary for the torque-angle of twist relationship to be valid.
• Module 06 Objective 7 Apply the sign convention for angle of twist, internal torque, torsion shear stress, and torsion shear strain.
• Module 06 Objective 8 Analyze a statically-indeterminate system of torsion-loaded shafts and tubes.

These Module Objectives support the following course learning outcome(s):

• apply section properties (first, second, and polar moments of area; radius of gyration) for the purpose of stress and deformation analysis of beams, shafts, and/or columns.
• calculate and illustrate the normal and shear stress components, normal and shear strains, and deformation of standard idealized elements such as shafts, beams, columns, and thin-wall pressure vessels due to axial, torsional, and flexural loads, pressurization, and/or changes in temperature.

Task

For each question, select the best answer. Discussion and collaboration is encouraged!
Chegg and similar "homework help" websites are prohibited, due to numerous errors that misinform and confuse students.
The correct answers will be made available after you submit your first attempt. If you would like clarification, ask Jenny.
Learn the concepts so that you are able to answer all the questions correctly. Attempt this learning activity as many times as you would like.

Grading Criteria

This optional learning activity is not graded.

You will receive the most benefit from this learning activity if you discuss the questions and answers with classmates.