Mechanics is the study of forces that act on bodies and the resultant motion that those bodies experience. With roots in physics and mathematics, Engineering Mechanics is the basis of all the mechanical sciences: civil engineering, materials science and engineering, mechanical engineering and aeronautical and aerospace engineering.

What is
Engineering Mechanics?

Mechanics is the study of forces that act on bodies and the
resultant motion that those bodies experience. With roots in physics and
mathematics, Engineering Mechanics is the basis of all the mechanical sciences:
civil engineering, materials science and engineering, mechanical engineering
and aeronautical and aerospace engineering. Engineering Mechanics provides the
"building blocks" of statics, dynamics, strength of materials, and
fluid dynamics. Engineering mechanics is the the discipline devoted to the solution
of mechanics problems through the integrated application of mathematical,
scientific, and engineering principles. Special emphasis is placed on the
physical principles underlying modern engineering design.

Engineering Mechanics students are also encouraged to engage in
undergraduate research with a faculty member. As a result, Engineering
Mechanics students are prepared for careers at the forefront of a wide variety
of fields, including the aerospace, electronics, automotive, manufacturing,
software, and computer industries. The curriculum also provides excellent
preparation for graduate school in many different engineering disciplines.

**BASICS AND STATICS OF PARTICLES**

** Introduction
to Mechanics**

Continuum
mechanics is concerned with motion and deformation of material objects, called
bodies, under the action of forces. If these objects are solid bodies, the
respective subject area is termed solid mechanics, if they are fluids, it is
fluid mechanics or fluid dynamics. The mathematical equations describing the
fundamental physical laws for both solids and fluids are alike, so the
different characteristics of solids and fluids have to be expressed by
constitutive equations. Obviously, the number of different constitutive
equations is huge considering the large number of materials. All of this can be
written using a unified mathematical framework and common tools. In the
following we concentrate on solids. Continuum mechanics is a phenomenological
field theory based on a fundamental hypothesis called continuum hypothesis. The
governing equations comprise material independent principles namely,

**Mechanics**

v Body of
Knowledge which Deals with the Study and Prediction of the State of Rest or
Motion of articles and Bodies under the action of Forces

v **Kinematics**, being a purely geometrical
description of motion and** **deformation
of material bodies;

v **Kinetics**, addressing forces as external
actions and stresses as internal reactions;

v **Balance equations **for
conservation of mass, momentum and energy; and material** **dependent laws, the

v **Constitutive equations**.

Altogether,
these equations form an initial boundary value problem.

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