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 3 of 10.
Anil RANSHUR said:
8 years ago
As there is no constraint to restrict it expansion. As it is free to expand. So no stress is developed.
RAJAGURU said:
8 years ago
Deformation occure due to thermal stress.
PRAVEEN said:
8 years ago
Bar is free to expand and there is no obstruction so stress in bar is 0.
Rajesh said:
8 years ago
Stress does not produce in the cases where (1) material is free to expand due to temperature (2) water in a free state (3) when the material is on a frictionless surface.
Leela said:
8 years ago
As there is no constraint to restrict it expansion. As it is free to expand. So no stress is developed.
Nagaraju said:
9 years ago
Stress = force/area.
Here force = 0,
Stress = 0,
Hence no stress.
Here force = 0,
Stress = 0,
Hence no stress.
Alsaba said:
9 years ago
Bar is free to expand and since no other force is applied so stress will be zero.
Goutam Ghosh said:
9 years ago
The bar is free to expand, so no stress will be developed.
Kavita said:
9 years ago
The bar is free to elongate as there is no restriction hence stress induced is zero.
Vaibhav b. said:
9 years ago
Stress is produced only restriction of strain. But there is strain without stress.
Bar expand freely so there is only strain in bar and no restriction of strain. So stress must be zero.
Bar expand freely so there is only strain in bar and no restriction of strain. So stress must be zero.
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