## Elastic energy

The concept of elastic **energy** is not confined to formal elasticity theory which primarily develops an analytical understanding of the mechanics of solid bodies and materials [ 1 ] :See Ch 1 §1 . The essence of elasticity is reversibility. Forces applied to an elastic material transfer **energy**

**wikipedia.org**| 2011/6/7 22:18:37

## Elastic-rebound theory

The elastic rebound theory is an explanation for how **energy** is spread during earthquakes. As plates on opposite sides of a fault are subjected to force and shift, they accumulate **energy** and slowly deform until their internal strength is exceeded. At that time, a sudden movement occurs along

**wikipedia.org**| 2011/10/3 23:20:54

## Elastic modulus

An elastic modulus , or modulus of elasticity , is the mathematical description of an object or substance's tendency to be deformed elastically (i.e., non-permanently) when a force is applied to it. The elastic modulus of an object is defined as the slope of its stress-strain curve in the

**wikipedia.org**| 2011/5/15 0:27:43

## Elastic collision

An elastic collision is an encounter between two bodies in which the total kinetic **energy** of the two bodies after the encounter is equal to their total kinetic **energy** before the encounter. Elastic collisions occur only if there is no net conversion of kinetic **energy** into other forms.

**wikipedia.org**| 2011/8/21 8:23:15

## Strength of materials

In materials science , the strength of a material is its ability to withstand an applied stress without failure. The applied stress may be tensile , compressive , or shear . Strength of materials is a subject which deals with loads, deformations and the forces acting on the material. A load

**wikipedia.org**| 2011/8/19 7:26:53