Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 2 (Q.No. 40)
40.
When spring index increases, the value of Wahl's stress factor
increases linearly
decreases linearly
remains same
increases exponentially
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
10 comments Page 1 of 1.

Ranjan said:   6 years ago
It should decrease exponentially.
(2)

Dhaval Chaudhary said:   7 years ago
Option D is the right answer. I agree.

Dhaval said:   8 years ago
Yeah, it should decrease.
(1)

Peddiraju said:   8 years ago
K = 4C-1/4C-4+0.615/C as per formula decrease exponentially.
(3)

Uzair Malik said:   8 years ago
Yes, Wahl stress factor 'K' increases exponentially with the decrease in spring index 'C'.

Well said @Dakahitesh.

Dakahitesh said:   9 years ago
C --> K Wahl's Factor
2 --> 2.0575
3 --> 1.5800
4 --> 1.4038
5 --> 1.3105
6 --> 1.2525
7 --> 1.2129
8 --> 1.1840
9 --> 1.1621
10 --> 1.1448
11 --> 1.1309
12 --> 1.1194
13 --> 1.1098
14 --> 1.1016
15 --> 1.0946
16 --> 1.0884
17 --> 1.0831
18 --> 1.0783
19 --> 1.0740
20 --> 1.0702
21 --> 1.0668

As Spring index decrease then value of Wahl's stress factor increase exponentially.
(1)

Prakash said:   9 years ago
When Spring index increase, the Wahl's stress factor decrease exponentially. But curvature stress increase with increase spring index.

Gaurav said:   9 years ago
@Vivek and Chintan are right.

Chintan patel said:   10 years ago
Spring index decrease then value of Wahl's stress factor increase exponentially.

Vivek said:   1 decade ago
As spring index increases, k decreases exponentially.

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