Everything about Statics totally explained
Statics is the branch of physics concerned with the analysis of loads (
force,
torque/moment) on
physical systems in
static equilibrium, that is, in a state where the relative positions of subsystems don't vary over time, or where components and structures are at rest under the action of external forces of equilibrium. In other words it's how forces are transmitted through the members in an object such as a crane from where it's applied on the object, the hanging end, to where it's supported from, the base of the crane. When in static equilibrium, the system is either at rest, or moving at constant velocity through its
center of mass.
By
Newton's second law, this situation implies that the net force and net
torque (also known as moment) on every body in the system is zero, meaning that for every force bearing upon a member, there must be an equal and opposite force. From this constraint, such quantities as
stress or
pressure can be derived. The net forces equalling zero is known as the
first condition for equilibrium, and the net torque equalling zero is known as the
second condition for equilibrium. See
statically determinate.
Statics is thoroughly used in the analysis of structures, for instance in
architectural and
structural engineering.
Strength of materials is a related field of mechanics that relies heavily on the application of static equilibrium.
Hydrostatics, also known as
fluid statics, is the study of fluids at rest. This analyzes systems in static equilibrium which involve forces due to mechanical fluids. The characteristic of any fluid at rest is that the force exerted on any particle of the fluid is the same in every direction. If the force is unequal the fluid will move in the direction of the resulting force. This concept was first formulated in a slightly extended form by the
French mathematician and
philosopher Blaise Pascal in
1647 and would be later known as
Pascal's Law. This law has many important applications in
hydraulics. Galileo also was a major figure in the development of hydrostatics.
In
economics, "static" analysis has substantially the same meaning as in physics. Since the time of
Paul Samuelson's
Foundations of Economic Analysis (1947), the focus has been on "
comparative statics", for example, the comparison of one
static equilibrium to another, with little or no discussion of the process of going between them – except to note the
exogenous changes that caused the movement.
In
exploration geophysics, "statics" is used as a short form for "static correction", referring to bulk time shifts of a
reflection seismogram to correct for the variations in elevation and velocity of the
seismic pulse through the
weathered and
unconsolidated upper layers.
Further Information
Get more info on 'Statics'.
|
External Link Exchanges
Do you know how hard it is to get a link from a large encyclopaedia? Well we're different and will prove it. To get a link from us just add the following HTML to your site on a relevant page:
<a href="http://statics.totallyexplained.com">Statics Totally Explained</a>
Then simply click through this link from your web page. Our crawlers will verify your link, extract the title of your web page and instantly add a link back to it. If you like you can remove the words Totally Explained and embed the link in article text.
As long as your link remains in place, we'll keep our link to you right here. Please play fair - our crawlers are watching. Your site must be closely related to this one's topic. Any kind of spamming, dubious practises or removing the link will result in your link from us being dropped and, potentially, your whole site being banned. |
