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Strength of Materials
SFD & BMD -Beams Subjected to a Moment
In a simply -...
Question
In a simply - supported beam loaded as shown below, the maximum bending moment in Nm is
A
25
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B
30
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C
35
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D
60
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Solution
The correct option is
B
30
Resultant beam diagram
R
A
+
R
B
=
100
.
.
.
.
(
1
)
Taking moment about A,
-100 x 0.5 - 10 +
R
B
x 1 = 0
∴
R
B
=
60
N
R
A
=
40
N
Bending moment diagram
Maximum bending moment
=40 x 0.5 + 10 = 30Nm
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