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Ultrasonic classification of imperfect interfaces
Journal of Nondestructive Evaluation, 1992Ultrasonic reflection measurements from material interfaces are commonly used to detect and quantitatively characterize boundary imperfections of different kinds. Either shear or longitudinal waves can be used to assess the degree of the interface imperfection in acoustical terms.
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The Spherical Inclusion With Imperfect Interface
Journal of Applied Mechanics, 1991A rigorous solution of the spherical inclusion problem with remote uniform strain or stress and imperfect elastic spring-type interface conditions is presented. In the case of thin elastic interphase, the interface spring constants are expressed in terms of interphase elastic properties and thickness.
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Interface imperfections in metal/Si multilayers
Journal of Applied Physics, 1992The structural and optical properties of Mo/Si and Ru/Si x-ray multilayers prepared by sputter deposition in argon have been examined using high-resolution transmission electron microscopy, optical profilometry, and x-ray and soft x-ray reflectance. We find that for Ru/Si, similar to previous results for Mo/Si, lower argon pressure during deposition ...
D. L. Windt, R. Hull, W. K. Waskiewicz
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Multilayer multiferroic composites with imperfect interfaces
Smart Materials and Structures, 2018We study the macroscopic behaviors of multilayered multiferroic composites with interface imperfections by a direct micromechanical approach. Both generalized interface stress type and generalized linear spring type imperfect interfaces are considered.
Hsin-Yi Kuo, Tien-Jung Wu, Ernian Pan
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Micromechanics of imperfect interfaces in heterogeneous materials
Composites, 1994Abstract In the design of strong engineered materials-containing fibres or particulates to be used for impact and abrasive wear, one important problem is the magnitude of the stress concentration around these second-phase constituents. Analytical solutions for cylindrical and spherical inclusions embedded within infinite matrices are reviewed and ...
G. Laird, T.C. Kennedy
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The Stefan Problem With an Imperfect Thermal Contact at the Interface
Journal of Applied Mechanics, 1982The Stefan problem in a semi-infinite region with arbitrarily prescribed initial and boundary conditions, subject to a condition of the mixed type at the interface is investigated. To establish the exact solution of the problem, some new basic solutions of the heat equation are offered. Their mathematical properties are also supplied.
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Multiscale Manipulation of Functional Imperfection Atomic Interfaces
Accounts of Chemical ResearchConspectusThe imperfect atomic interfaces (IAIs) refer to the interface area with incomplete crystal structure formed by precise atomic-scale structure modulation. Unlike the traditional perfectly crystalline interfaces, IAIs show structural defects and symmetry breaking in their atomic arrangement and coordination environment.
Mengyang Zhang +11 more
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Thin interphase/imperfect interface in conduction
Journal of Applied Physics, 2001Thin interphase between two media is modeled in terms of imperfect interface conditions in the context of potential theory, thus for conduction, dielectric behavior, and permeability. There is no limitation on the magnitude of interphase material conductivity.
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Homogenization of a composite with imperfect interface
2004In this paper the homogenization of the stationary heat equation with rapidly oscillating coefficients in a two-component composite with imperfect inclusions is studied. According to the values of a parameter γ, describing the thermal resistance of the interface separating the two materials, different limit behaviours are obtained.
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