Thermal Strain from a Temperature Change
Easythermal strain
A material has coefficient of thermal expansion α = 12 × 10-6/°C and undergoes a temperature increase of 50°C. What is its free thermal strain?
- A0.00006
- B0.0006
- C0.006
- D0.06
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Answer: B. 0.0006
For unrestrained thermal expansion, εth = αΔT = (12 × 10⁻⁶)(50) = 0.0006. This is dimensionless; restraint would introduce stress.
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