Mechanical Engineering - Strength of Materials - Discussion
Discussion Forum : Strength of Materials - Section 1 (Q.No. 6)
6.
A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce
Discussion:
98 comments Page 5 of 10.
Shahrukh said:
6 years ago
Free to expand no give thermal stress we consider thermal stress because the temperature is given.
Harish krishna said:
1 decade ago
No force hence no stress. When temperature has an effect on body thermal stress comes into action.
DHARMVEER PHATE said:
1 decade ago
Here temperature is changing there so thermal stress is produced there are no stress produced.
Vishal said:
8 years ago
Stress is induced only when there is obstruction otherwise there will no stresses are induced.
Ethin said:
9 years ago
Stress depending on temperature, s = alpha * t * e.
But here not constrained so no stress.
But here not constrained so no stress.
Sagar said:
1 decade ago
This Bar Is The Free to Expand. Hence no Resisting force is there so no stress Developed.
Nisha said:
1 decade ago
Will come into play since expansion is not restricted that's why no stress is occurring.
Vicky said:
1 decade ago
Body itself tends to restrict the expansion, there must be compressive stress induced.
Udhayaraj said:
1 decade ago
If the bar is free to expand or contract there will be no stress induced in the body.
Kavita said:
9 years ago
The bar is free to elongate as there is no restriction hence stress induced is zero.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers