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You are here: Home / Theory of structures 1 / Definition of Strain Energy | Resilience and Proof Resilience

Definition of Strain Energy | Resilience and Proof Resilience

August 24, 2015 by admin Leave a Comment

Definition of Strain Energy

When a piece of bar is subjected to a tensile or a compressive load, P, then there is a change in length which is proportional to the load P within elastic limit. It is said that work is done and is stored in the form of strain energy within a bar or material. On removal of the loading, the material returns to its original position due to release of stored energy.

It may be defined as

The work done by the load in straining material or bar. It is denoted by U.

Resilience

Strain energy per unit volume stored in a material is called resilience.

Proof Resilience

Strain energy at elastic limit in a material or bar is known as Proof Resilience.

Strain energy is measured in Newton meter or Joule.

Filed Under: Theory of structures 1

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