The Mechanical Engineering Handbook



Strain Under Axial Loading

Strain Under Axial Loading Equation



$$ {\epsilon} = \frac{P}{AE} $$ where:

ε   =   Normal Strain   (Dimensionless)

P   =   Axial Load   (N)

A   =   Cross-Sectional Area   (m²)

E   =   Modulus of Elasticity   (Pa)


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Equation Assumptions



  • The material behaves in a linarlly elastic manner.
  • The material is isotropic.
  • The material is homogeneous.
  • The deformations are small.