Limit

Definition

A limit represents the maximum extent to which a material can be deformed without undergoing permanent deformation. It is the threshold beyond which elasticity ceases and plasticity begins.

5 Must Know Facts For Your Next Test

1. The elastic limit is the maximum stress that a material can withstand while still returning to its original shape once the stress is removed.
2. Beyond the elastic limit, materials enter a plastic region where they undergo permanent deformation.
3. Hooke's Law applies only up to the elastic limit of a material.
4. The yield point marks the end of elastic behavior and beginning of plastic behavior in materials.
5. Material properties such as tensile strength and ductility are determined by studying their limits.

Review Questions

• What happens to a material when it is stressed beyond its elastic limit?
• How does Hooke's Law relate to the concept of an elastic limit?
• Why is understanding the yield point important in material science?

Related terms

Elastic Limit: The maximum stress that can be applied to a material without causing permanent deformation.

Plasticity: The property of a material that allows it to undergo permanent deformation after exceeding its elastic limit.

Yield Point: The point at which a material transitions from elastic behavior to plastic behavior under stress.