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Parry, G ; Colin, J ; Coupeau, C ; Foucher, F ; Cimetiere, A ; Grilhe, J

Snap-through occurring in the post-buckling of thin films

Applied Physics Letters 86 (8)

par Administrateur - publié le

Abstract :

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. (c) 2005 American Institute of Physics.