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.
Discussion:
25 comments Page 2 of 3.
Nemish said:
9 years ago
σ impact load = (F/A)[1+(1+2hAE/F)^0.5].
Shivanjal mehra said:
9 years ago
No specific solution is available for this question.
Mani deepak said:
9 years ago
As in gradually applied load, load varies from 0 to a.
The net load applied is w1 = w/2.
So, the stress is p = w/(2a).
For suddenly applied load stress p1 = w/a.
p1/p = 2, p1 = 2p.
So, stress due to suddenly applied is twice of gradually applied load.
The net load applied is w1 = w/2.
So, the stress is p = w/(2a).
For suddenly applied load stress p1 = w/a.
p1/p = 2, p1 = 2p.
So, stress due to suddenly applied is twice of gradually applied load.
Himanshu Sharma said:
9 years ago
Can anyone please explain how it can be twice?
AMOL MORE said:
9 years ago
When the load applied gradually then stress induce = W/A.
When the load applied suddenly then stress induce = 2 * W/A.
By comparing.
(stress) suddenly = 2 * (stress) gradually.
When the load applied suddenly then stress induce = 2 * W/A.
By comparing.
(stress) suddenly = 2 * (stress) gradually.
Akash said:
8 years ago
Here, σ impact load = (F/A)[1 + (1 + 2hAE/FL)^0.5].
(1)
Avipsa said:
8 years ago
Yes, it is experimentaly proved.
(1)
Sam said:
8 years ago
σ impact load = (F/A)[1 + (1 + 2hAE/FL)^0.5].
What is L in this formula?
What is L in this formula?
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)
Syed mudassir said:
7 years ago
L is length of the plate.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers