Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 6 (Q.No. 26)
26.
The stiffness of a closely-coiled helical spring is __________ proportional to number of turns.
directly
inversely
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.

Sunny said:   1 decade ago
Please some one tell me hint.

Adithya Venkatesh said:   10 years ago
Stiffness = Load/Deflection.

Deflection of a helical spring = 8WD^3n/Gd^4.

Where n is the number of coils.

Therefore when you substitute the values is stiffness then you will get that stiffness is inversely proportional to the number of turns.
(1)

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