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Engineering ToolBox > Thermal Expansion - Superficial i.e. Area
Superficial thermal expansion can be expressed as
dA = A0 γ (t1 - t0) (1)
where
dA = change in area (m2)
A0 = initial area (m2)
t0 = initial temperature (oC)
t1 = final temperature (oC)
γ ~= 2 α
where
α = linear expansion coefficient