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.
Shahrukh said:
6 years ago
Free to expand no give thermal stress we consider thermal stress because the temperature is given.
Wefaq said:
7 years ago
It is no stress because it is free to expand. Else it will be a thermal expansion.
ARBAZ said:
7 years ago
Bar is freely expanding hence there is no load on it hence no stress will induce.
Madhura said:
7 years ago
As it is free expansion no stress will be induced.
Sagar Bankar said:
8 years ago
Stress is generated in the body when we will applying an external force to opposing the body expanding.
But heated body there is no any restriction so stress.
But heated body there is no any restriction so stress.
Ajey negi said:
8 years ago
Thermal stress induced only if constrain is also provided it means it should be fixed from one end when given the heat per temperature.
Vishal said:
8 years ago
Stress is induced only when there is obstruction otherwise there will no stresses are induced.
IRAPPA said:
8 years ago
It will induce thermal stress.
Shijoh said:
8 years ago
It will be bending stress.
MALLA SAI GIRISH said:
8 years ago
Here strain exits due to change in temperature. We know that stress is proportional to strain. Therefore stress is present.
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