THERMAL STRESS IN A BAR
Thermal Stress Calculator has been developed to calculate
stress of a restrained bar when the temperature of the bar is uniformly changed.
If the temperature of a bar , which is placed between two fixed supports, is
increased by ∆T, the bar cannot expand due to restraints imposed on its ends.
The supports exert equal and opposite forces on the bar to keep it from
elongating. Thus, a state of stress is created in the bar. This thermal stress
is proportional to the temperature change ∆T, coefficient of thermal expansion
(α) and elastic modulus (E) of bar material and thermal stress formula is given
in the "List of Equations" section.
Calculator:
OUTPUT PARAMETERS 
Parameter 
Symbol 
Value 
Unit 
Thermal Stress 
σ_{T} 



Temperature Change 
∆T 




Note: Use dot "." as decimal separator.
Note: Negative stresses are compression stresses.
Supplements:
Link 
Usage 
Material Properties

Thermal expansion coefficient
and elastic modulus values of steels, aluminum alloys, cast irons, coppers and titaniums. 
Linear Thermal Expansion Calculator

Calculates
linear thermal expansion of an unrestrained bar when the temperature of the body 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 Stress 
σ_{T} 
σ_{T} = (∆T)αE 
Reference: