Equilibrium of a Body | Coplanar Concurrent Forces - Mechanics of Solids

Equilibrium of a Body I Coplanar Concurrent Forces I Mechanics of Solids I Lect. 21

This video explain Examples on Equilibrium of a Body using Lami’s Theorem (लामी का प्रमेय) in detail.

The body is said to be in equilibrium if the resultant of all forces acting on it is zero. There are two major types of static equilibrium, namely, translational equilibrium and rotational equilibrium.

Free Body Diagram:
One of the most useful aids for solving a statics problem is the free body diagram (FBD). A free body diagram is a graphic, dematerialized, symbolic representation of the body (structure, element or segment of an element) in which all connecting "pieces" have been removed. A FBD is a convenient method to model the structure, structural element, or segment that is under scrutiny. It is a way in which to conceptualize the structure, and its composite elements, so that an analysis may be initialized.

All of the physical attributes of the structure are removed. This is not completed at random, rather with a distinct method. A body, or segment thereof, is represented by a simple single line. Each connection is solely represented by a juncture with distinct properties, or is replaced by a set of forces and moments which would represent the action at that connection. Internal forces which would be found at a node (connection or joint) can be replaced by representational external forces where that "part" connects would connect with the other member in the FBD. All loads are represented as force systems.

This video is a part of lecture series on subject MECHANICS OF SOLIDS.

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