Results 21 to 30 of about 6,004 (259)

Exact thermal invisibility for spherical cloaks with imperfect interfaces

open access: yesAIP Advances, 2022
We present new exact results for the design of spherical thermal cloaks with the effect of imperfect interfaces. Thermal metamaterials are of great importance in advanced energy control and management. However, nearly all relevant studies considered that
Tungyang Chen, Jun-Hong Lin
doaj   +1 more source

Estimating the effective conductivity for ellipse-inclusion model with Kapitza thermal resistance

open access: yesEPJ Applied Metamaterials, 2021
The ellipse assemblage model with imperfect interface has quite complex microstructure, that can be considered an extension of the circle assemblage model with imperfect interfaces.
Nguyen Van-Luat
doaj   +1 more source

On Oscillation of Inhomogeneous Fibres with Imperfect Interfaces [PDF]

open access: yesThe Quarterly Journal of Mechanics and Applied Mathematics, 2001
Summary: This work deals with an asymptotic model of oscillation of an inhomogeneous fibre containing a layer of imperfect interface (thin adhesive layer). We derive a lower-dimensional model and study propagation of waves associated with the displacement jump across the interface.
Selsil, Ö.   +2 more
openaire   +1 more source

On Saint Venant - Kirchhoff imperfect interfaces [PDF]

open access: yesInternational Journal of Non-Linear Mechanics, 2017
Using matched asymptotic expansions with fractional exponents, we obtain original transmission conditions describing the limit behavior for soft, hard and rigid thin interphases obeying the Saint Venant-Kirchhoff material model. The novel transmission conditions, generalizing the classical linear imperfect interface model, are discussed and compared ...
Rizzoni, Raffaella   +2 more
openaire   +3 more sources

A model for evaluation of effective thermal conductivity of periodic composites with poorly conducting interfaces [PDF]

open access: yesMaterials Research, 2014
This paper presents a new micromechanical extension of the parametric finite-volume theory for evaluation of effective thermal conductivities of periodic unidirectional fiber reinforced composites. Such materials are assumed as composed of repeating unit
Romildo dos Santos Escarpini Filho   +1 more
doaj   +2 more sources

Numerical Validation of Multiphysic Imperfect Interfaces Models

open access: yesFrontiers in Materials, 2020
We investigate some mathematical and numerical methods based on asymptotic expansions for the modeling of bonding interfaces in the presence of linear coupled multiphysic phenomena.
Serge Dumont   +3 more
doaj   +1 more source

Multiphysical contact of functionally graded magneto-electro-elastic material with imperfect bonding interface

open access: yesFriction, 2023
Three-dimensional (3D) frictional contact model of functionally graded magneto-electro-elastic (FGMEE) material with a conducting spherical punch under electromagnetic fields is presented.
Yijin Sui   +3 more
doaj   +1 more source

Study on the Single Scattering of Elastic Waves by a Cylindrical Fiber with a Partially Imperfect Bonding Using the Collocation Point Method

open access: yesShock and Vibration, 2018
The single scattering of P- and SV-waves by a cylindrical fiber with a partially imperfect bonding to the surrounding matrix is investigated, which benefits the characterization of the behavior of elastic waves in composite materials.
Jun Zhang   +3 more
doaj   +1 more source

A model of imperfect interface with damage [PDF]

open access: yesMeccanica, 2016
In this paper two models of damaged materials are presented. The first one describes a structure composed by two adherents and an adhesive which is micro-cracked and subject to two different regimes, one in traction and one in compression. The second model is a model of interface derived from the first one through an asymptotic analysis, and it can be ...
Bonetti, Elena   +3 more
openaire   +5 more sources

Multiscale Modeling of Imperfect Interfaces and Applications [PDF]

open access: yes, 2016
Modeling interfaces between solids is of great importance in the fields of mechanical and civil engineering. Solid/solid interface behavior at the microscale has a strong influence on the strength of structures at the macroscale, such as gluing, optical systems, aircraft tires, pavement layers and masonry, for instance.
Dumont, Serge   +4 more
openaire   +4 more sources

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