1st Edition

Capacity and Transport in Contrast Composite Structures Asymptotic Analysis and Applications

By A. A. Kolpakov, A. G. Kolpakov Copyright 2009
    336 Pages 83 B/W Illustrations
    by CRC Press

    Is it possible to apply a network model to composites with conical inclusions?

    How does the energy pass through contrast composites?

    Devoted to the analysis of transport problems for systems of densely packed, high-contrast composite materials, Capacity and Transport in Contrast Composite Structures: Asymptotic Analysis and Applications answers questions such as these and presents new and modified asymptotic methods for real-world applications in composite materials development.

    A mathematical discussion of phenomena related to natural sciences and engineering, this book covers historical developments and new progress in mathematical calculations, computer techniques, finite element computer programs, and presentation of results of numerical computations.

    The "transport problem"—which is described with scalar linear elliptic equations—implies problems of thermoconductivity, diffusion, and electrostatics. To address this "problem," the authors cover asymptotic analysis of partial differential equations, material science, and the analysis of effective properties of electroceramics. Providing numerical calculations of modern composite materials that take into account nonlinear effects, the book also:

    • Presents results of numerical analysis, demonstrating specific properties of distributions of local fields in high-contrast composite structures and systems of closely placed bodies
    • Assesses whether total flux, energy, and capacity exhaust characteristics of the original continuum model
    • Illustrates the expansion of the method for systems of bodies to highly filled contrast composites

    This text addresses the problem of loss of high-contrast composites, as well as transport and elastic properties of thin layers that cover or join solid bodies. The material presented will be particularly useful for applied mathematicians interested in new methods, and engineers dealing with prospective materials and design methods.

    IDEAS AND METHODS OF ASYMPTOTIC ANALYSIS AS APPLIED TO TRANSPORT IN COMPOSITE STRUCTURES

    Effective properties of composite materials and the homogenization theory

    Transport properties of periodic arrays of densely packed bodies

    Disordered media with piecewise characteristics and random collections of bodies

    Capacity of a system of bodies

     

    NUMERICAL ANALYSIS OF LOCAL FIELDS IN A SYSTEM OF CLOSELY PLACED BODIES

    Numerical analysis of two-dimensional periodic problem

    Numerical analysis of three-dimensional periodic problem

    The energy concentration and energy localization phenomena

    Which physical field demonstrates localization most strongly?

    Numerical analysis of potential of bodies in a system of closely placed bodies with finite element method and network model

    Energy channels in non-periodic systems of disks

     

    ASYMPTOTIC BEHAVIOR OF CAPACITY OF A SYSTEM OF CLOSELY PLACED BODIES. TAMM SHIELDING. NETWORK APPROXIMATION

    Problem of capacity of a system of bodies

    Formulation of the problem and definitions

    Heuristic network model

    Proof of the principle theorems

    Completion of proof of the theorems

    Some consequences of the theorems about NL zones and network approximation

    Capacity of a pair of bodies dependent on shape

     

    NETWORK APPROXIMATION FOR POTENTIALS OF CLOSELY PLACED BODIES

    Formulation of the problem of approximation of potentials of bodies

    Proof of the network approximation theorem for potentials

    The speed of convergence of potentials for a system of circular disks

     

    ANALYSIS OF TRANSPORT PROPERTIES OF HIGHLY FILLED CONTRAST COMPOSITES USING THE NETWORK APPROXIMATION METHOD

    Modification of the network approximation method as applied to particle-filled composite materials

    Numerical analysis of transport properties of highly filled disordered composite material with network model

     

    EFFECTIVE TUNABILITY OF HIGH-CONTRAST COMPOSITES

    Nonlinear characteristics of composite materials

    Homogenization procedure for nonlinear electrostatic problem

    Tunability of laminated composite

    Tunability amplification factor of composite

    Numerical design of composites possessing high tunability amplification factor

    The problem of maximum value for the homogenized tunability amplification factor

    What determines the effective characteristics of composites?

    The difference between design problems of tunable composites in the cases of weak and strong fields

    Numerical analysis of tunability of composite in strong fields

     

    EFFECTIVE LOSS OF HIGH-CONTRAST COMPOSITES

    Effective loss of particle-filled composite

    Effective loss of laminated composite material

     

    TRANSPORT AND ELASTIC PROPERTIES OF THIN LAYERS

    Asymptotic of first boundary-value problem for elliptic equation in a region with a thin cover

    Elastic bodies with thin underbodies layer (glued bodies)

    Biography

    A.A. Kolpakov works in the Department of Mathematics and Mechanics at Novosibirsk State University, Russia and Université de Fribourg, Fribourg Pérolles, Switzerland. A.G. Kolpakov works as Marie Curie Fellow at Università degli Studi di Cassino, Italy and Siberian State University of Telecommunications and Informatics, Russia.

    ... deals with interesting questions of strongly heterogeneous media, such as the analysis of capacities and transport properties. ... The book is intended to be self-contained and it is of interest to researchers in the fields of "homogenization theory" and "asymptotic analysis" in the areas of applied mathematics, physics and engineering sciences. More specifically, it may be of interest to students and researchers in mathematical models related to diffusion, electricity, magnetism, mechanics, new materials and design methods. It is written in terms of electrostatics, and it pays special attention to the so-called (by the authors) "Tamm screening effect" or "Tamm shielding effect" and the problems of the "effective tunability" and "effective loss" of composite materials. These effects/terms (and some others) arising in physics and engineering are in the reviewer’s opinion rarely considered in the literature of applied mathematics, and the authors provide a mathematical interpretation in this book .... Many figures in the book are important for the understanding of the corresponding problems and the results obtained.
    —Eugenia Pérez, in Mathematical Reviews, 2012a