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 9 of 10.
Mahender said:
1 decade ago
Stress = load/area. It doesn't on the temperature.
Chandrakishor pal said:
1 decade ago
Because bar is free to expand no any resisting force so no stress generate.
Rajiv said:
1 decade ago
Because the body is free to expand so there is not any stress developed in the bar.
DHARNESH CHANDRAN said:
1 decade ago
Stress = load/area. It clearly indicates that Stress independent of temperature.
Raghuram said:
1 decade ago
It is free to expand so no stress will be induced.
Pradeep said:
1 decade ago
Stress = load/area. Stress independent of temperature.
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.
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.
DHANA RAJ said:
1 decade ago
Stress is not related with temperature. So its having no stress.
Sumeet saha said:
1 decade ago
If the bar is fixed (rigid) at any one or both side, the a compressive stress will produced. Otherwise in free bar no stress will produced.
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