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Proceedings Paper

Cohesive failure of multilayer composite films
Author(s): Mikhail Yu. Gutkin; Ilya A. Ovid'ko; Alexey E. Romanov; Alexander G. Sheinerman
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Paper Abstract

A theoretical model is proposed for the cohesive failure of multilayer composite systems. A general formula is derived which relates values of structural and geometrical parameters at which crack generation is energetically favorable in such composite systems. For one-layer film/substrate systems, the critical thickness is found above which the cohesive fracture of films is energetically favorable. Nucleation of an intermediate layer due to diffusion across a film/substrate interphase boundary is considered. It is shown that the generation and the growth of the diffusion layer may result in the spontaneous cracking of the film.

Paper Details

Date Published: 1 February 2001
PDF: 7 pages
Proc. SPIE 4348, Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering, (1 February 2001); doi: 10.1117/12.417664
Show Author Affiliations
Mikhail Yu. Gutkin, Institute of Problems of Mechanical Engineering (Russia)
Ilya A. Ovid'ko, Institute of Problems of Mechanical Engineering (Russia)
Alexey E. Romanov, A.F. Ioffe Physico-Technical Institute (Russia)
Alexander G. Sheinerman, Institute of Problems of Mechanical Engineering (Russia)


Published in SPIE Proceedings Vol. 4348:
Fourth International Workshop on Nondestructive Testing and Computer Simulations in Science and Engineering
Alexander I. Melker, Editor(s)

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