For the steel-aluminum bi-material strip the following measurements were made
|δ =||0.021 m|
|x =||0.189 m|
From equation (3) the curvature
From equation (6), the misfit strain
And so, from equation (5)
Given an initial room temperatue of 20ºC, this gives the boiling temperature of nitrogen as 20 - 213 = -193ºC (compare accepted figure of -196ºC).
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