Snapthrough occurring in the postbuckling of thin films

Parry, G.; Colin, J.; Coupeau, C.; Foucher, F.; Cimetière, A.; Grilhé, J.
February 2005
Applied Physics Letters;2/21/2005, Vol. 86 Issue 8, p081905
Academic Journal
The postbuckling transition from an initially straight-sided wrinkle to a distribution of bubbles has been investigated by means of finite element simulations in the case of a thin film relying on a rigid substrate. The calculations show that a snapthrough occurs when the buckling wavelength exceeds a critical value. Experimental atomic force microscopy observations of this transition have been reported and found to be in good agreement with the calculations.


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