15 | Strain

At the end of this section you should be able to:

  1. Define strain at a point

  2. Calculate normal strain

  3. Calculate shear strain

Normal Strain

Visualization of normal strain

Hibbeler 8e F2.1: Assuming small angle of deflection with similar triangles

Hibbeler 8e 2.21: Large angle of deflection

Shear Strain

Hibbeler 8e 2.18: Calculating shear strain using dot product to find angle

Mathematica Code