Young’s Modulus

Published: May 21, 2017 | Last updated: July 5, 2023

What Does Young’s Modulus Mean?

Young’s modulus is a measure of the stress buildup associated with a given strain, or the modulus of elasticity of pipe material (psi). Young’s modulus is a numerical constant that describes the elastic properties of a solid under tension or compression in a single direction. It is the measure of ability of a material, such as a metal rod being stretched or compressed lengthwise, to return to its original length.

Also known as elastic modulus (E).


Trenchlesspedia Explains Young’s Modulus

The linear relationship between stress and strain continues until it reaches the threshold, or yield point, which represents the elastic limit. Upon reaching the yield point, the deformation of the material is permanent. A load released before the yield point is reached, irrespective of duration, will revert to its original shape. Metals used in the manufacturing of drain pipes offer good predictability with regard to response when force is applied. This is because the Young’s modulus is constant because of the relatively linear relationship between deformation (strain) and load (stress), which is essential for structural design.



Elastic Modulus

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