LINEAR THERMAL EXPANSION CALCULATOR

Linear Thermal Expansion Calculator has been developed to calculate linear thermal expansion of an unrestrained bar when the temperature of the bar is uniformly changed.

If the temperature of a bar , which rests freely on a surface, is increased by ∆T, the bar expands linearly by an amount of δT. The amount of elongation is proportional to the temperature change ∆T, the length of the bar L and coefficient of thermal expansion of bar material α.



Calculator:

Linear Thermal Expansion
INPUT PARAMETERS
Parameter Symbol Value Unit
Initial Length  L
Linear Expansion Coefficient α
Initial Temperature t0
Final Temperature t1



OUTPUT PARAMETERS
Parameter Symbol Value Unit
Change in Length δT --- ---
Final Length L + δT ---
Temperature Change ∆T --- ---
Thermal Strain εT  --- ---

Note: Use dot "." as decimal separator.

 



Supplements:



Link Usage
Material Properties Thermal expansion coefficient values of steels, aluminum alloys, cast irons, coppers and titaniums.
Thermal Stress in a Bar Calculates stress of a restrained bar when the temperature of the bar is uniformly changed.
Thermal Stress in a Unifrom Plate Calculates stress of a restrained unifrom plate when the temperature of the plate is uniformly changed.

List of Equations:

Parameter/Condition Symbol Equation
Thermal Deformation δT δT = (∆T)αL
Thermal Strain εT  εT = αL

Reference: