Definition:Young's Modulus

Definition

Young's modulus is a modulus of elasticity used when an elastic body $B$ is under tension or compression.

It is defined as the ratio of applied pressure to the resulting increase or decrease in length per unit length of $B$.

That is, it is the ratio of tensile or compressive stress to the associated strain.

Symbol

The usual symbol used to denote the Young's modulus of a body is $E$.

Also see

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Source of Name

This entry was named for Thomas Young.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Young's modulus
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Young's modulus