What is Poisson's ratio?

Practice Questions

Q1
What is Poisson's ratio?
  1. Lateral strain/Longitudinal strain
  2. Longitudinal strain/Lateral strain
  3. Stress/Strain
  4. Strain/Stress

Questions & Step-by-Step Solutions

What is Poisson's ratio?
  • Step 1: Understand that when a material is stretched or compressed, it changes shape.
  • Step 2: Identify the two types of strain: longitudinal strain (change in length) and lateral strain (change in width).
  • Step 3: Longitudinal strain is how much the material stretches or compresses in the direction of the force applied.
  • Step 4: Lateral strain is how much the material changes in the direction perpendicular to the force applied.
  • Step 5: Poisson's ratio (ν) is calculated by dividing the lateral strain by the longitudinal strain.
  • Step 6: The formula for Poisson's ratio is ν = lateral strain / longitudinal strain.
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