Journal ArticleDOI
Delamination of metal thin films on polymer substrates: From straight-sided blisters to varicose structures
TLDR
In this article, the formation of straight-sided blisters has been observed to evolve to periodic distributions of droplets, and the energy variation associated with formation of the droplets has been computed and the morphological change of the film has been discussed as a function of residual stress.Abstract:
Uniaxial compression has been generated in thin films of nickel deposited on a polycarbonate substrate. Atomic force microscopy investigations have emphasized the formation of straight-sided blisters which have been observed to evolve to periodic distributions of droplets. The energy variation associated with the formation of the droplets has been computed and the morphological change of the film has been discussed as a function of the residual stress.read more
Citations
More filters
Journal ArticleDOI
Effect of substrate compliance on the global unilateral post-buckling of coatings: AFM observations and finite element calculations
TL;DR: The post-critical regime of straight-sided wrinkles on compliant substrates of polycarbonate has been observed by atomic force microscope and investigated by means of finite element simulations as mentioned in this paper.
Journal ArticleDOI
Stability diagram of unilateral buckling patterns of strip-delaminated films.
TL;DR: It is shown that the straight-sided wrinkles and the bubbles are associated with anisotropy of stresses and/or of elastic properties, whereas the telephone cords are stable at high isotropic stresses.
Journal ArticleDOI
Buckling and post-buckling of stressed straight-sided wrinkles: experimental AFM observations of bubbles formation and finite element simulations
TL;DR: In this article, the transition from a straight-sided wrinkle to a periodic distribution of bubbles has been experimentally studied by atomic force microscopy for a stressed thin film relying on a substrate.
Journal ArticleDOI
Atomic force microscopy study of the morphological shape of thin film buckling
TL;DR: In this paper, the various buckling patterns have been investigated by atomic force microscopy and are reviewed and discussed in the frame of elastic theory in thin films elaborated by sputtering methods.
Journal ArticleDOI
Finite element analysis of post-buckling dynamics in plates-Part I: An asymptotic approach
Hui Chen,Lawrence N. Virgin +1 more
TL;DR: In this article, the authors investigated various static and dynamic aspects of post-buckled thin plates, including the transition of buckled patterns, postbuckling dynamics, secondary bifurcation, and dynamic snapping (mode jumping phenomenon), using asymptotical and non-stationary finite element methods.
References
More filters
Book ChapterDOI
Mixed mode cracking in layered materials
John W. Hutchinson,Zhigang Suo +1 more
TL;DR: In this article, the authors describe the mixed mode cracking in layered materials and elaborates some of the basic results on the characterization of crack tip fields and on the specification of interface toughness, showing that cracks in brittle, isotropic, homogeneous materials propagate such that pure mode I conditions are maintained at the crack tip.
Journal ArticleDOI
Stability of straight delamination blisters
TL;DR: In this article, the buckling behavior of thin films is investigated and a mechanism of instability causing undulations in an advancing finger of delamination is pointed out, which is the basic phenomenon explaining the zigzag pattern.
Journal ArticleDOI
Edge effects in thin film delamination
TL;DR: In this article, the energy release rate and mode mix for an interface delamination crack emerging from, or converging upon, an edge was analyzed for two two-dimensional configurations: (a) a film whose edge lies in the interior of the substrate and (b) a films whose edge is aligned with the edge of a substrate (i.e. the film/substrate geometry is a quarterplane).
Journal ArticleDOI
Measurement and analysis of buckling and buckle propagation in compressed oxide layers on superalloy substrates
J.-S. Wang,Anthony G. Evans +1 more
TL;DR: In this article, the mechanisms whereby thin thermally grown aluminum oxide layers detach from superalloy/bond coat substrates have been investigated based on the use of applied compressions that superpose on the residual compression and activate the failure mechanisms.