Definition:Yield Stress

Definition

Let a body $\BB$ be deformed under stress.

The yield stress of $\BB$ is the stress above which $\BB$ is no longer elastic, and does not return to the same shape when the stress is removed.

If $\BB$ is brittle, it may tend to fracture before reaching the point of deformation.

Also see

• Definition:Elastic Region
• Definition:Plastic Region

• Results about yield stress can be found here.

Sources

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