Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 2 (Q.No. 32)
32.
The rectangular beam 'A' has length l, width b and depth d. Another beam 'B' has the same length and width but depth is double that of 'A'. The elastic strength of beam B will be __________ as compared to beam A.
same
double
four times
six times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
11 comments Page 2 of 2.

Kothai Arjunan said:   6 years ago
Z= I/y.
for A- l.b.d.
for B-l,b,2d.

Using I = bd^3/12 y= d/2.
Find (B/A)'s Moment of inertia by replacing d = 2d for Beam B.
(2)


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