Modulus of Rigidity: Definition & Equation


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Given a steel rod under a shear stress of 240 MPa and a strain of 0.003, what is the Shear Modulus of steel?

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1. A steel beam (Modulus of Rigidity = 11.5 x 106 psi) is under 0.004 shear strain. What is the shear stress exerted on the beam?

2. A concrete beam is under 50 ksi shear stress. What is its final length if the initial length is 6 in? (the Modulus of Rigidity of concrete is 3 x 106 psi)

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About This Quiz & Worksheet

The quiz/worksheet combo is useful in testing your understanding of the modulus of rigidity formula. You'll be asked to find the shear stress and modulus on the quiz.

Quiz & Worksheet Goals

You can assess your knowledge of the following topics:

  • Calculating the change in length of a beam in shear direction
  • The formula for the modulus of rigidity
  • Calculating shear modulus
  • Finding the shear stress

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the lesson on the modulus of rigidity
  • Information recall - access the knowledge you have gained about calculating the modulus of rigidity of concrete
  • Knowledge application - use your knowledge to answer questions about using the modulus of rigidity formula

Additional Learning

Learn about this equation in greater detail by using the lesson called Modulus of Rigidity: Definition & Equation. Other topics you'll get to analyze include:

  • Another name for modulus of rigidity
  • Examples of the process of calculating shear force
  • Factor that affects the modulus of rigidity