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 2 of 10.
ANUSHA MADASI said:
1 decade ago
Stress appears when there is an resisting force, since there is no resisting object, material or bar is subjected to free expansion. No stress acts on this bar.
Ganesh pise said:
1 decade ago
Stress is not related to temperature. It related to resisting force per unit area. So, free expansion of bar no stress is induced.
Pradeep said:
1 decade ago
Stress = load/area. Stress independent of temperature.
Raghuram said:
1 decade ago
It is free to expand so no stress will be induced.
DHARNESH CHANDRAN said:
1 decade ago
Stress = load/area. It clearly indicates that Stress independent of temperature.
Rajiv said:
1 decade ago
Because the body is free to expand so there is not any stress developed in the bar.
Chandrakishor pal said:
1 decade ago
Because bar is free to expand no any resisting force so no stress generate.
Mahender said:
1 decade ago
Stress = load/area. It doesn't on the temperature.
Nagaraj said:
1 decade ago
Said that it is free to expand, i.e. there is no load. As stress depends upon the load applied, no stress in the body.
Manveer said:
1 decade ago
When no load on metal rod then stress and strain curve define is call plastic flow.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers