Civil Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 20)
20.
The shape of the bending moment diagram over the length of a beam, carrying a uniformly distributed load is always
linear
parabolic
cubical
circular.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Pradhyumna said:   1 decade ago
In case of BM diagram for:

Point load = linear shape.
UDL = parabolic shape.
UVL = cubical shape.

Nikhil said:   1 decade ago
Proof:

The parabolic equation is Y = mx^2.

The B.M for simply supported beam subjected to u.d.l over all span. is

WL^2/8.

Since the square variation shows the parabola.

Kavya said:   1 decade ago
SF diagram for UDL is linear.

BM diagram for UDL is 2nd degree Parabola.
(1)

Viru kapoor said:   7 years ago
BM diagram is parabolic and sheer force is linear.
(2)

Achintya said:   3 years ago
Point load = linear (1st degree).

UDL = parabolic shape (2nd degree).

UVL = cubical shape (3rd degree).
(4)

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