期刊
INTERNATIONAL JOURNAL OF FRACTURE
卷 210, 期 1-2, 页码 81-94出版社
SPRINGER
DOI: 10.1007/s10704-018-0262-2
关键词
Micro/nanoscale coating film; Surface effects; Delamination; Thin plate; Energy release rate; Interfacial adhesion
资金
- National Natural Science Foundation of China [11672336]
- Open Foundation of State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, PRC [GZ1712]
The delamination of a circular thin film at micro/nanoscale is studied using the Kirchhoff plate theory incorporating surface effects in this paper. Bending of a clamped circular nanoplate subjected to a concentrated force at the center or a uniformly distributed force over a lateral surface is solved. The bending deflection is derived in closed form. The adhesion energy and its release rate for delamination are determined when surface effects are taken into account. The influences of surface residual stress and surface elasticity along with the film's size on the energy release rate of debonding advance or interfacial adhesion of a thin film bonded to an elastic substrate are analyzed for applied loading or given displacements. Analytic results are compared with experimental data and satisfactory agreement is confirmed.
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