// multi-utility computation suite · offline · instant · precise
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│ [c] calcalyst_ │
│ computation suite │
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eng.thermal-expansion Calculator
Calculates the dimensional change of a material under a temperature change using the coefficient of thermal expansion (CTE). Thermal expansion in structural systems must be accommodated by expansion joints — unrestrained steel rail can buckle at 30°C above installation temperature.
Inputs
L0
Linear measurement. Ensure consistent units: 1 m = 1,000 mm = 3.281 ft.
Alpha
Reference formula or conversion factor shown for context.
Dt
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
E
Reference formula or conversion factor shown for context.
Results
length change (mm)
The computed linear length.
strain
Fractional deformation: change in length / original length. Elastic strain is fully recoverable; plastic strain is permanent. Plotted vs. stress on a stress-strain curve.
thermal stress if constrained (MPa)
Internal force per unit area (Pa or MPa). Must stay below yield strength in service. Beyond yield: permanent deformation. Beyond tensile strength: fracture.