Mechanical Engineering - Strength of Materials - Discussion

Discussion Forum : Strength of Materials - Section 1 (Q.No. 10)
10.
The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
equal to
one-half
twice
four times
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
25 comments Page 2 of 3.

Amar k m s said:   8 years ago
At gradually (f=w only or m.g) but in sudden there will inertia in addition to it so ( f=w+m.a) then will (f=2w).
(1)

Dara Singh said:   1 decade ago
Twice stress why & which formula used this it may be more than twice or little less than twice.

Krishna said:   1 decade ago
Stress do not depend on rate of application of force I prefer equal in both the cases.

Ashu said:   1 decade ago
Ya. As per the formula. Suddenly applied load doubled than gradully applied load.

Akshay patil said:   1 decade ago
Suddenly applied load, having higher velocity compared to gradually applied load.

Sam said:   9 years ago
σ impact load = (F/A)[1 + (1 + 2hAE/FL)^0.5].

What is L in this formula?

Sanjay said:   1 decade ago
Because new load is P=P1+P2, where P1=P2 so the stress is twice.

Akash said:   9 years ago
Here, σ impact load = (F/A)[1 + (1 + 2hAE/FL)^0.5].
(1)

Rajkotha said:   6 years ago
In stress it is two times.

In strain it is four times.
(2)

Shivanjal mehra said:   10 years ago
No specific solution is available for this question.


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