extension of a bar is 0.2 mm and length is 200 mm. what is the value of strain
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Answer:
The SI unit of stress is the pascal (Pa). When one newton of force presses on a unit surface area of one meter squared, the resulting stress is one pascal:
one pascal
=
1.0
Pa
=
1.0
N
1.0
m
2
.
In the British system of units, the unit of stress is ‘psi,’ which stands for ‘pound per square inch’
(
lb/in
2
)
.
Another unit that is often used for bulk stress is the atm (atmosphere). Conversion factors are
1
psi
=
6895
Pa
and
1
Pa
=
1.450
×
10
−
4
psi
1
atm
=
1.013
×
10
5
Pa
=
14.7
psi.
An object or medium under stress.
.
I hope this helps you.........
Explanation:
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