Young's modulus E is defined as
which is equal to
where is the equilibrium length, is the length change under the applied stress, F is the force applied, and A is the area over which the force is applied. Young's modulus therefore has units of pressure.
Bulk Modulus, Elastic Limit, Modulus, Poisson Ratio, Shear Modulus, Strain
References
Chou, P. C. and Pagano, N. J. Elasticity: Tensor, Dyadic, and Engineering Approaches. New York: Dover, 1992.
Weast, R. C. (Ed.). Handbook of Chemistry and Physics, 61st ed. Boca Raton, FL: CRC Press, 1981.
