## Frictional contact mechanics

Frictional **contact mechanics** is concerned with a large range of different scales. At the macroscopic scale, it is applied for the investigation of the motion of contacting bodies (see **Contact** dynamics ). For instance the bouncing of a rubber ball on a surface depends on the frictional

**wikipedia.org**| 2011/5/25 9:45:48

## Contact geometry

In mathematics , **contact** geometry is the study of a geometric structure on smooth manifolds given by a hyperplane distribution in the tangent bundle and specified by a one-form , both of which satisfy a 'maximum non-degeneracy' condition called 'complete non-integrability'. From the Frobenius

**wikipedia.org**| 2011/5/6 10:30:06

## Non-contact force

A non **contact** force is a force applied to an object by another body that is not in direct **contact** with it. The most common example of a non **contact** force is gravity . A non **contact** force is different from a **contact** force , which is a force applied to a body by another body that is

**wikipedia.org**| 2011/8/15 14:57:59

## Continuum mechanics

information about the particular material studied is added through a constitutive relation . Continuum **mechanics** deals with physical properties of solids and fluids which are independent of any particular coordinate system in which they are observed. These physical properties are then represented

**wikipedia.org**| 2011/10/1 6:28:32

## Stress (mechanics)

In continuum **mechanics** , stress is a measure of the internal forces acting within a deformable body . Quantitatively, it is a measure of the average force per unit area of a surface within the body on which internal forces act. These internal forces are a reaction to external forces applied

**wikipedia.org**| 2011/5/18 18:35:03