Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 3 (Q.No. 25)
25.
Two bars of different materials and same size are subjected to the same tensile force. If the bars have unit elongation in the ratio of 2:5, then the ratio of modulus of elasticity of the two materials will be
2:5
5:2
4:3
3:4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.

Sri said:   9 years ago
But they are comparing to two bars na.

AMAL said:   10 years ago
e(strain) = delta l(change in length)/original length.

Strain = stress/E.

Strain = Change in length (elongation) is inversely proportional to E.

That is 5:2.
(1)


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