Revisiting the Constrained Blister Test to Measure Thin Film Adhesion
Keyword(s):
A thin film is clamped at the periphery to form a circular freestanding diaphragm before a uniform pressure, p, is applied to inflate it into a blister. The bulging membrane adheres to a rigid constraining plate with height, w0, from the nondeformed membrane. Increasing pressure expands the contact circle of radius, c. Depressurization causes shrinkage of the contact and “pull-off” or spontaneous detachment from the plate. Simultaneous measurement of (p, w0, c) allows one to determine the adhesion energy, γ. A solid mechanics model is constructed based on small strain and linear elasticity, which shows a characteristic loading–unloading hysteresis. The results are consistent with a large deformation model in the literature.
Keyword(s):
1989 ◽
Vol 29
(1-4)
◽
pp. 219-231
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1970 ◽
Vol 3
(6)
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pp. 877-883
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2018 ◽
Vol 352
◽
pp. 406-410
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1989 ◽
pp. 107-112