Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 8 (Q.No. 36)
36.
The rectangular beam 'A ' has length l, width b and depth d. Another beam 'B' has the same width and depth but length is double that of 'A'. The elastic strength of beam 'B' will be __________ as compared to beam A.
Discussion:
38 comments Page 4 of 4.
Aakash said:
8 years ago
Change in length= PL/AE.
Anurup said:
8 years ago
I will also go with the 1st option i.e, same. Because elastic strength means section modulus and it does not depend upon length.
Ravinder Singh said:
8 years ago
If length increase moment increase if moment double bending becomes double and strength becomes half.
Aamir said:
8 years ago
I also think its same because elastic strength corresponds to the moment of resistance which is directly proportional to the sectional modulus.
Vicky said:
8 years ago
Can Anyone explain What Is Elastic Strength?
And how can we find it?
And how can we find it?
Pranavi said:
8 years ago
Flexural strength (σ)= (3FL)/(2*bd^2), what about this? Please explain.
Prasad said:
7 years ago
(PL/AE)a * (PL/AE)b.
Now increase the length by 2 in b.
(PL/AE)a * (2PL/AE)b.
(a/b)=(1/2),
b = 2a.
Now increase the length by 2 in b.
(PL/AE)a * (2PL/AE)b.
(a/b)=(1/2),
b = 2a.
Jayesh said:
6 years ago
What is elastic strength?
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