Thermal Stress Calculator
All calculations are based on the principles outlined in the ASME Boiler and Pressure Vessel Code, Section II. Learn more.
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Thermal Stress
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Data Source and Methodology
The Formula Explained
\[ \text{Stress} = E \times \alpha \times \Delta T \]
Glossary of Terms
- Modulus of Elasticity (E): A measure of a material's stiffness.
- Coefficient of Thermal Expansion (α): The rate at which a material expands per degree of temperature change.
- Temperature Change (ΔT): The difference in temperature that the material experiences.
Example: Step-by-Step
Calculate the thermal stress for a steel rod with a modulus of elasticity of 200 GPa, a coefficient of thermal expansion of 12×10^-6 /°C, and a temperature change of 50°C.
Solution: \[ \text{Stress} = 200 \times 10^9 \times 12 \times 10^{-6} \times 50 = 120 \text{ MPa} \]
Frequently Asked Questions (FAQ)
What is thermal stress?
Thermal stress is the stress induced in a body due to changes in temperature.
How is thermal stress calculated?
Thermal stress can be calculated using the formula: Stress = Modulus of Elasticity × Coefficient of Thermal Expansion × Temperature Change.
Why is thermal stress important?
Thermal stress is critical in design to prevent material failure due to temperature changes.