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Mechanics of Multiscale Hybrid Nanocomposites provides a practical
and application-based investigation of both static and dynamic
behaviors of multiscale hybrid nanocomposites. The book outlines
how to predict the mechanical behavior and material characteristics
of these nanocomposites via two-step micromechanical homogenization
techniques performed in an energy-based approach that is
incorporated with the strain-displacement relations of shear
deformable beam, plate and shell theories. The effects of using
various nanofillers are detailed, providing readers with the best
methods of improving nanocomposite stiffness. Both numerical (Ritz,
Rayleigh-Ritz, etc.) and analytical (Navier, Galerkin, etc.)
solution methods are outlined, along with examples and techniques.
This book provides a mechanical engineering-based analysis of wave
dispersion response in various structures created from different
materials. Looking at materials including strengthened
nanocomposites, functionally graded materials, metal foams and
anisotropic materials, it uses analytical solution methods to solve
typical problems. Nanocomposites are a novel type of composite
materials, fabricated through dispersing nanosized reinforcements
in a matrix to combine the material properties of the matrix with
the improved properties of nanosize elements. This improves the
elastic properties, providing high frequency ranges and buckling
limits, leading industries such as the automobile industry to
implement nanocomposites in various materials used in the
production process. This book enables readers to learn about the
theory and practical applications of this rapidly evolving field.
Nanocomposites use materials such as a matrix reinforced with
carbon-based components such as carbon fiber, carbon nanotubes,
graphene platelets and graphene oxide powders. The physical and
chemical properties of these nanocomposites are computed with the
help of homogenization techniques, developed in the framework of a
micromechanics approach. Practically minded, the book investigates
the impact of employing various nanofillers, and demonstrating how
this augments stiffness within the nanocomposite. Topics covered
include agglomeration and waviness of nanofillers, porosity,
elastic mediums, fluid flow, and the impact of the thermal
environment on a propagated wave. Using mathematical formulations
to solve wave dispersion characteristics of structures including
beams, plates and shells, the book obtains equations of structures
using first and higher-order shear deformation theories. The book
will be of interest to professional engineers working in material
and mechanical engineering, nanocomposites, nanofillers and
micromechanics. It will also be of interest to students in these
fields.
Mechanics of Magnetostrictive Materials and Structures demonstrates
the practical applications and uses for this cutting-edge smart
material. Exploring the analytical and numerical solution
procedures and characteristics of metamaterials more generally, the
book details how these respond to external factors. Exceptionally
adjustable and adaptable, magnetostrictive materials are artificial
structures that provide distinctive physical properties. Providing
clear illustrations throughout, this book provides a comprehensive
guide to the theory and its applications. Presenting the
mathematical tools needed to analyse magnetostrictive materials and
structures, through the use of MATLAB, the book will also detail
static analysis. Comprehensively assessing the practicalities of
this smart material, it also discusses vibration and buckling under
different loads, alongside dynamic behaviour. Aimed at students and
professionals working in the field of mechanics, materials and
dynamics, the book is an essential guide to this rapidly developing
area.
Mechanics of Smart Magneto-electro-elastic Nanostructures provides
mathematical models for buckling and vibration analysis of
flexoelectric and magneto-electro-elastic nanostructures under
thermal environment effects. Analytical results are presented in
each chapter based on changes in different parameters, including
various electric and magnetic potential, non-local parameters or
different boundary conditions and their effects on vibration and
buckling behavior on nanobeams and nanoplates. Key characteristics
of smart materials and their response to external factors are
presented, including size-dependency of nanostructures, effect of
various gradient indexes, thermal environment effects, and effects
of elastic foundation.
Emphasizing the static and dynamic behaviors of nanocomposite
single- or multilayered structures in the framework of continuum
mechanics-based approaches, Mechanics of Nanocomposites:
Homogenization and Analysis investigates mechanical behaviors of
polymeric matrices strengthened via various nanofillers and
nanoparticles such as carbon nanotubes (CNTs), graphene platelets
(GPLs), and graphene oxides (GOs). It covers equivalent properties
of nanocomposites that are obtained via homogenization techniques
based on micromechanics approaches. In addition, this comprehensive
book: Discusses the effects of various nanofillers and identifies
the amount of the improvement that can be induced in the stiffness
of the polymeric nanocomposites by adding a finite content of the
aforementioned nanosize reinforcements Magnifies the effect of the
number of the stacking plies of the multi-layered nanocomposite
structures on both static and dynamic responses of the continuous
systems manufactured from such sandwich structures Presents a wide
range of analytical and numerical solution procedures Investigates
the effects of porosity along with mechanical characteristics of
nanocomposites Considers the time-dependency of the material
properties of the viscoelastic polymeric nanocomposite structures
Performs analyses using an energy-based approach incorporated with
the strain-displacement relations of both classical and
higher-order shear deformable beam, plate, or shell theorems Aimed
at researchers, academics, and professionals working across
mechanical, materials, and other areas of engineering, this work
ensures that readers are equipped to fully understand the
mechanical characteristics of nanocomposite structures so that they
can design, develop, and apply these materials effectively.
Wave Propagation Analysis of Smart Nanostructures presents a
mathematical framework for the wave propagation problem of
small-scale nanobeams and nanoplates manufactured from various
materials, including functionally graded composites, smart
piezoelectric materials, smart magneto-electro-elastic materials,
smart magnetostrictive materials, and porous materials. In this
book, both classical and refined higher-order shear deformation
beam and plate hypotheses are employed to formulate the wave
propagation problem using the well-known Hamilton's principle.
Additionally, the influences of small-scale nanobeams on the
mechanical behaviors of nanostructures are covered using both
nonlocal elasticity and nonlocal strain gradient elasticity
theories. Impacts of various terms, such as elastic springs of
elastic foundation, damping coefficient of viscoelastic substrate,
different types of temperature change, applied electric voltage and
magnetic potential, and intensity of an external magnetic field on
the dispersion curves of nanostructures, are included in the
framework of numerous examples.
Emphasizing the static and dynamic behaviors of nanocomposite
single- or multilayered structures in the framework of continuum
mechanics-based approaches, Mechanics of Nanocomposites:
Homogenization and Analysis investigates mechanical behaviors of
polymeric matrices strengthened via various nanofillers and
nanoparticles such as carbon nanotubes (CNTs), graphene platelets
(GPLs), and graphene oxides (GOs). It covers equivalent properties
of nanocomposites that are obtained via homogenization techniques
based on micromechanics approaches. In addition, this comprehensive
book: Discusses the effects of various nanofillers and identifies
the amount of the improvement that can be induced in the stiffness
of the polymeric nanocomposites by adding a finite content of the
aforementioned nanosize reinforcements Magnifies the effect of the
number of the stacking plies of the multi-layered nanocomposite
structures on both static and dynamic responses of the continuous
systems manufactured from such sandwich structures Presents a wide
range of analytical and numerical solution procedures Investigates
the effects of porosity along with mechanical characteristics of
nanocomposites Considers the time-dependency of the material
properties of the viscoelastic polymeric nanocomposite structures
Performs analyses using an energy-based approach incorporated with
the strain-displacement relations of both classical and
higher-order shear deformable beam, plate, or shell theorems Aimed
at researchers, academics, and professionals working across
mechanical, materials, and other areas of engineering, this work
ensures that readers are equipped to fully understand the
mechanical characteristics of nanocomposite structures so that they
can design, develop, and apply these materials effectively.
The laminated composite structures can be tailored to design
advanced structures, but the sharp change in the properties of each
layer at the interface between two adjacent layers causes large
inter-laminar shear stresses that may eventually give rise to well
known phenomenon known as delamination. Such detrimental effects
can be mitigated by grading the properties in a continuous manner
across the thickness direction resulting in a new class of
materials known as 'functionally graded materials' (FGMs). This
book presents a non-linear dynamics and vibration analysis on
functionally graded circular and annular plates that are bonded
with piezoelectric actuator layers considering the implications of
thermal effects on piezoelectric behaviour of the coupled
structure.
A material structure assembled from a layer or cluster of atoms
with the size of the order of nanometers is called a nanostructure.
There are many events such as the discovery of scanning electron
microscopy that gave fillip to nanotechnology research. However,
with the discovery of a new allotrope of carbon in the late 1980s
and early 1990s, namely the fullerene, carbon nanotubes, and
graphene, a new chapter in nanotechnology research has emerged.
These have become the basic building blocks for many nanodevices
such as nano sensors, nano actuators, nano gyroscopes, etc. All of
these devices are packaged under Nano Electro Mechanical Systems
(NEMS) or Nano Opto Mechanical Systems (NOMS) devices. The key
elements in these devices are the nanobeams, nanorods, nanoplates
and nanoshells, respectively. This book is a comprehensive text to
cover the mechanical analyses of nanobeams. The book introduces the
reader to the fundamentals, as well as more in-depth aspects, of
vibration and buckling analyses of nanoscale beams faced with
different environments and the associated latest research
applications. Most of the solutions presented in these chapters are
the results of investigations conducted by the author and his
collaborators since 2015. The results presented herein may be
treated as a benchmark for checking the validity and accuracy of
other numerical solutions. Despite a number of existing texts on
the theory and analysis of nanoscale beams, there is not a single
book that is devoted entirely to the mechanical investigation of
nanobeams. It is hoped that this book will fill the gap to some
extent and be used as a valuable reference source for postgraduate
students, engineers, scientists, and applied mathematicians in this
field.
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