CHAPTER 3
Faculty of Chemical Engineering
Universiti Teknologi Malaysia, 81310 UTM
Johor, Johor Bahru, Malaysia
STATICS OF RIGID BODY IN 2-D
SKKB 1123 STATICS & BIOMATERIALS

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Week
Topic
Topic Outcomes
4
Statics of Rigid Bodies in Two
Dimensions
•
Moment of a force
•
Couples
•
Equivalent coplanar force
systems
It is expected that students are able to:
•
Determine
the moment of a force
about a specified axis.
•
Define
and calculate the moment of a
couple.
•
Determine
the
resultant
of
non-
concurrent force systems.
•
Explain
how the moment of a force
about a point relates to the principle of
transmissibility.
Topic Outcomes

Scope of Lecture
Effects of forces exerted on a rigid body
Replace a given system of forces by a simpler
equivalent system, force-couple system

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Previously
, any concurrent forces are considered
in analyses when
bodies are treated as particles
.
In reality
,
forces act at different points of
application
, so the
size of the body
will have to
be taken into consideration.
Thus the
assumption that forces are concurrent
is
NO LONGER VALID
.
Analysis of Rigid Body