Question

Ans.
2.20.2: A rod 10 m long at 10°C is heated to 70°C. #
the free expansion is prevented, find the
magnitude and nature of stress induced. Take
E = 2.1 x 10°N/mm?: a = 12 x 10-rc.
W-13, 8 Marks
Soln.​

Answer 1

Answer:

Thermal expansion is the tendency of matter to change in shape, volume, and area in response to a change in temperature. ... The degree of expansion divided by the change in temperature is called the material's coefficient of thermal expansion. It is