### Compression Tension Stress Linear Thermal Expansion Equation and Calculator

**Heat Transfer Engineering
Thermodynamics **

**Compression Tension Stress Linear Thermal Expansion Equation and Calculator **

**Compression or Tension Stress** is the change in stress due to the material expansion by the change of temperature.

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Preview: Calculator Change of Length

*Stress*

σ = E α ΔT

or

σ = E ε

Where:

ΔT = End Temperature T1 - Start Temperature T2 (°F, °C)

E = Youngs Modulus (psi, N/m^{2})

α = Coefficient of Thermal Expansion (1/°F, 1/°C). Note: that units may be expressed as in / in-°F, m / m-°C

ε = Strain ΔL/L ( in/in, m/m) That would have occured if linear feature no restrined axially.

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