دانلود کتاب مهندسی مکانیک استاتیک و دینامیک

Mechanics may be defined as the branch of science that describes the behaviour of the bodies which are at rest or in motion under the action of forces. Engineering mechanics is the branch of engineering that applies the principles of mechanics to the practical engineering problems. It is generally based on Newton’s laws and is often called Newtonian mechanics or classical mechanics. The basic principles of engineering mechanics are used in the study of subjects such as mechanics of solids, mechanics of fluids, space-craft, vibrations etc.

In engineering mechanics, it is idealized that a body as a continuum (continuous distribution of matter) and rigid that undergoes theoretically no deformation. But in real time, no solid body is perfectly rigid and every body undergoes a minute deformation under the action of some external forces. However, the deformation may be very small and may not be considered.