Thermal expansion and thermal stress

Set the temperature change, length and material to see the free expansion and the restrained stress.

Works in metric or imperial units.

Learn thermal expansion properly

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Questions students ask

Why do bridges have expansion joints?

So the deck can grow and shrink with temperature without building up large stresses.

What formula does it use?

δ = αLΔT; σ = EαΔT.

Free notes on thermal expansion

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