Strain

Strain is is a dimensionless quantity, defined as deformation relative to a certain reference configuration.

Links:

1. Wikipedia — Strain (mechanics)

Contents:

• Engineering normal strain is total deformation over initial dimension
  • engineering_normal_strain
  • total_deformation
  • initial_dimension
  • law
• Superposition of small deformations
  • total_strain
  • first_strain
  • second_strain
  • law