How Temperature Changes Create Stress

Thermal stress is the stress that builds up when an object changes temperature but cannot expand or contract freely. If the object would expand without restraint, the stress is compressive. If it would contract, the stress is tensile.

This stress from heating or cooling can become large enough to...

A body experiences stress when it undergoes temperature variations; this stress is known as thermal stress, which can even permanently deform the body.

For example, a space is intentionally maintained between two joints of a rod on the railway track to prevent the deformation or bending of rods.

To calculate the thermal stress in a...