Young's modulus

Dr Dan J Bell and Dr Matt A. Morgan et al.

Young's modulus is a relationship between elasticity, strain, and stress:

  • elasticity x (change in length / original length) = (force / area)

put another way, this is

  • elasticity x (strain) = stress


  • elasticity = stress / strain

Elasticity is measured in kilopascals (kPa).

This relationship is fundamental to strain elastography and shear wave elastography.

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Article information

rID: 32098
Section: Physics
Synonyms or Alternate Spellings:
  • Young modulus

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