2.4. Shear energy due to transverse load

Try these first

1. 1.

   Define shear energy in the context of beams.

   Hint

   Think about energy and stress relation.

2. 2.

   What is the equation for calculating shear energy?

   Hint

   Identify variables related to shear.

3. 3.

   What does shear energy in a beam result from?

   • Longitudinal loading
   • Torsional loading
   • Transverse loading

   Hint

   Think about the direction of the applied load.

4. 4.

   True or False? Shear stress resulting from torsion is always zero.

   • True
   • False

   Hint

   Think about how loads might act differently.

5. 5.

   A beam of length 3m and cross-section 0.05m² is subjected to a transverse load of 20kN. If the shear modulus is 85 GPa, calculate the total shear energy stored.

   Hint

   Look closely at unit conversions for GPa to N/m².

6. 6.

   How would the shear energy change if the length of the beam is doubled while keeping other parameters constant?

   Hint

   Consider the role of length in the formula again.