1.5. Types of Strain

Try these first

1. 1.

   What is the formula for linear strain?

   Hint

   Remember, it's the change in length divided by the original length.

2. 2.

   Define shear strain.

   Hint

   Think about how forces can cause layers to slant.

3. 3.

   What does linear strain measure?

   • Change in volume
   • Change in length
   • Change in angle

   Hint

   Think about how materials stretch.

4. 4.

   Is shear strain related to changes in volume?

   • True
   • False

   Hint

   Remember the characteristics of shear stress.

5. 5.

   A cylindrical rod with an initial length of 1 m is stretched until its length becomes 1.02 m. If the rod has a diameter of 1 cm, calculate the stress experienced by the rod knowing the material's Young's Modulus is 200 GPa.

   Hint

   Ensure to calculate linear strain first.

6. 6.

   A cube with a volume of 2 m³ is subjected to hydrostatic pressure of 500 kPa, causing its volume to change to 1.95 m³. Calculate the volumetric strain and pressure change.

   Hint

   Utilize volumetric strain calculation first to establish how pressure affects the volume.