|
Showing 1 - 14 of
14 matches in All Departments
Before a structure or component can be completed, before any
analytical model can be constructed, and even before the design can
be formulated, you must have a fundamental understanding of damage
behavior in order to produce a safe and effective design. Damage
Mechanics presents the underlying principles of continuum damage
mechanics along with the latest research. The authors consider both
isotropic and anisotropic theories as well as elastic and
elasto-plastic damage analyses using a self-contained, easily
understood approach. Beginning with the requisite mathematics,
Damage Mechanics guides you from the very basic concepts to
advanced mathematical and mechanical models. The first chapter
offers a brief MAPLE (R) tutorial and supplies all of the MAPLE
commands needed to solve the various problems throughout the
chapter. The authors then discuss the basics of elasticity theory
within the continuum mechanics framework, the simple case of
isotropic damage, effective stress, damage evolution, kinematic
description of damage, and the general case of anisotropic damage.
The remainder of the book includes a review of plasticity theory,
formulation of a coupled elasto-plastic damage theory developed by
the authors, and the kinematics of damage for finite-strain
elasto-plastic solids. From fundamental concepts to the latest
advances, this book contains everything that you need to study the
damage mechanics of metals and homogeneous materials.
Before a structure or component can be completed, before any
analytical model can be constructed, and even before the design can
be formulated, you must have a fundamental understanding of damage
behavior in order to produce a safe and effective design. Damage
Mechanics presents the underlying principles of continuum damage
mechanics along with the latest research. The authors consider both
isotropic and anisotropic theories as well as elastic and
elasto-plastic damage analyses using a self-contained, easily
understood approach. Beginning with the requisite mathematics,
Damage Mechanics guides you from the very basic concepts to
advanced mathematical and mechanical models. The first chapter
offers a brief MAPLE(R) tutorial and supplies all of the MAPLE
commands needed to solve the various problems throughout the
chapter. The authors then discuss the basics of elasticity theory
within the continuum mechanics framework, the simple case of
isotropic damage, effective stress, damage evolution, kinematic
description of damage, and the general case of anisotropic damage.
The remainder of the book includes a review of plasticity theory,
formulation of a coupled elasto-plastic damage theory developed by
the authors, and the kinematics of damage for finite-strain
elasto-plastic solids. From fundamental concepts to the latest
advances, this book contains everything that you need to study the
damage mechanics of metals and homogeneous materials.
This book resulted from a series of lecture notes presented in
CISM, Udine in July 7 -11, 2008. The papers inform about recent
advances in continuum damage mechanics for both metals and metal
matrix composites as well as the micromechanics of localization in
inelastic solids. Also many of the different constitutive damage
models that have recently appeared in the literature and the
different approaches to this topic are presented, making them
easily accessible to researchers and graduate students in civil
engineering, mechanical engineering, engineering mechanics,
aerospace engineering, and material science.
This is a book for people who love mechanics of composite materials
and ? MATLAB . We will use the popular computer package MATLAB as a
matrix calculator for doing the numerical calculations needed in
mechanics of c- posite materials. In particular, the steps of the
mechanical calculations will be emphasized in this book. The reader
will not ?nd ready-made MATLAB programs for use as black boxes.
Instead step-by-step solutions of composite material mechanics
problems are examined in detail using MATLAB. All the problems in
the book assume linear elastic behavior in structural mechanics.
The emphasis is not on mass computations or programming, but rather
on learning the composite material mechanics computations and
understanding of the underlying concepts. The basic aspects of the
mechanics of ?ber-reinforced composite materials are covered in
this book. This includes lamina analysis in both the local and
global coordinate systems, laminate analysis, and failure theories
of a lamina.
Shells and plates are critical structures in numerous engineering
applications. Analysis and design of these structures is of
continuing interest to the scienti c and engineering communities.
Accurate and conservative assessments of the maximum load carried
by a structure, as well as the equilibrium path in both the elastic
and inelastic range, are of paramount importance to the engineer.
The elastic behavior of shells has been closely investigated,
mostly by means of the nite element method. Inelastic analysis
however, especially accounting for damage effects, has received
much less attention from researchers. In this book, we present a
computational model for nite element, elasto-plastic, and damage
analysis of thin and thick shells. Formulation of the model
proceeds in several stages. First, we develop a theory for thick
spherical shells, providing a set of shell constitutive equations.
These equations incorporate the effects of transverse shear
deformation, initial curvature, and radial stresses. The proposed
shell equations are conveniently used in nite element analysis. 0
AsimpleC quadrilateral, doubly curved shell element is developed.
By means of a quasi-conforming technique, shear and membrane
locking are prevented. The element stiffness matrix is given
explicitly, making the formulation computationally ef cient. We
represent the elasto-plastic behavior of thick shells and plates by
means of the non-layered model, using an Updated Lagrangian method
to describe a small-strain geometric non-linearity. For the
treatment of material non-linearities, we adopt an Iliushin's yield
function expressed in terms of stress resultants, with isotropic
and kinematic hardening rules.
Geomaterials consist of a mixture of solid particles and void space
that may be ?lled with ?uid and gas. The solid particles may be
di?erent in sizes, shapes, and behavior; and the pore liquid may
have various physical and chemical properties. Hence, physical,
chemical or electrical interaction - tween the solid particles and
pore ?uid or gas may take place. Therefore, the geomaterials in
general must be considered a mixture or a multiphase material whose
state is described by physical quantities in each phase. The
stresses carried by the solid skeleton are typically termed
"e?ective stress" while the stresses carried by the pore liquid are
termed "pore pressure. " The summation of the e?ective stress and
pore pressure is termed "total stress" (Terzaghi, 1943). For a free
drainage condition or completely undrained c- dition, the pore
pressure change is zero or depends only on the initial stress
condition; it does not depend on the skeleton response to external
forces. Therefore, a single phase description of soil behavior is
adequate. For an intermediate condition, however, some ?ow (pore
pressure leak) may take place while the force is applied and the
skeleton is under deformation. Due to the leak of pore pressure,
the pore pressure changes with time, and the e?ective stress
changes and the skeleton deforms with time accordingly. The
solution of this intermediate condition, therefore, requires a
multi-phase c- tinuum formulations that may address the interaction
of solid skeleton and pore liquid interaction.
Geomaterials consist of a mixture of solid particles and void space
that may be ?lled with ?uid and gas. The solid particles may be
di?erent in sizes, shapes, and behavior; and the pore liquid may
have various physical and chemical properties. Hence, physical,
chemical or electrical interaction - tween the solid particles and
pore ?uid or gas may take place. Therefore, the geomaterials in
general must be considered a mixture or a multiphase material whose
state is described by physical quantities in each phase. The
stresses carried by the solid skeleton are typically termed
"e?ective stress" while the stresses carried by the pore liquid are
termed "pore pressure. " The summation of the e?ective stress and
pore pressure is termed "total stress" (Terzaghi, 1943). For a free
drainage condition or completely undrained c- dition, the pore
pressure change is zero or depends only on the initial stress
condition; it does not depend on the skeleton response to external
forces. Therefore, a single phase description of soil behavior is
adequate. For an intermediate condition, however, some ?ow (pore
pressure leak) may take place while the force is applied and the
skeleton is under deformation. Due to the leak of pore pressure,
the pore pressure changes with time, and the e?ective stress
changes and the skeleton deforms with time accordingly. The
solution of this intermediate condition, therefore, requires a
multi-phase c- tinuum formulations that may address the interaction
of solid skeleton and pore liquid interaction.
This is a book for people who love mechanics of composite materials
and ? MATLAB . We will use the popular computer package MATLAB as a
matrix calculator for doing the numerical calculations needed in
mechanics of c- posite materials. In particular, the steps of the
mechanical calculations will be emphasized in this book. The reader
will not ?nd ready-made MATLAB programs for use as black boxes.
Instead step-by-step solutions of composite material mechanics
problems are examined in detail using MATLAB. All the problems in
the book assume linear elastic behavior in structural mechanics.
The emphasis is not on mass computations or programming, but rather
on learning the composite material mechanics computations and
understanding of the underlying concepts. The basic aspects of the
mechanics of ?ber-reinforced composite materials are covered in
this book. This includes lamina analysis in both the local and
global coordinate systems, laminate analysis, and failure theories
of a lamina.
This book provides in a single and unified volume a clear and
thorough presentation of the recent advances in continuum damage
mechanics for metals and metal matrix composites. Emphasis is
placed on the theoretical formulation of the different constitutive
models in this area, but sections are added to demonstrate the
applications of the theory. In addition, some sections contain new
material that has not appeared before in the literature.
The book is divided into three major parts: Part I deals with the
scalar formulation and is limited to the analysis of isotropic
damage in materials; Parts II and III deal with the tensor
formulation and is applied to general states of deformation and
damage.
The material appearing in this text is limited to plastic
deformation and damage in ductile materials (e.g. metals and metal
matrix composites) but excludes many of the recent advances made in
creep, brittle fracture, and temperature effects since the authors
feel that these topics require a separate volume for this
presentation. Furthermore, the applications presented in this book
are the simplest possible ones and are mainly based on the uniaxial
tension test.
Scalar Damage and Healing Mechanics outlines the latest
cutting-edge research in the field of scalar damage and healing
mechanics, providing step-by-step insight on how to use scalar
damage variables in various modeling scenarios. Additionally, the
book discusses the latest advances in healing mechanics, covering
the evolution of healing and damage, small damage and small
healing, healing processes in series and in parallel, super
healing, and the thermodynamics of damage and healing. Coupled
systems, in which damage triggers self-healing as well as a
decoupled system where healing occurs after damage is identified by
external detection, are also discussed. Readers are additionally
introduced to fundamental concepts such as effective stress, damage
evolution, plane stress damage decomposition, and other damage
processes that form the basis for a better understanding of the
more advanced chapters.
Size Effects in Plasticity: From Macro to Nano provides concise
explanations of all available methods in this area, from atomistic
simulation, to non-local continuum models to capture size effects.
It then compares their applicability to a wide range of research
scenarios. This essential guide addresses basic principles,
numerical issues and computation, applications and provides code
which readers can use in their own modeling projects. Researchers
in the fields of computational mechanics, materials science and
engineering will find this to be an ideal resource when they
address the size effects observed in deformation mechanisms and
strengths of various materials.
Gradient-Enhanced Continuum Plasticity provides an expansive review
of gradient-enhanced continuum plasticity from the initial stage to
current research trends in experimental, theoretical, computational
and numerical investigations. Starting with an overview of
continuum mechanics and classical plasticity, the book then delves
into concise lessons covering basic principles and applications,
such as outlining the use of the finite element method to solve
problems with size effects, mesh sensitivity and high velocity
impact loading. All major theories are explored, providing readers
with a guide to understanding the various concepts of and
differences between an array of gradient-enhanced continuum
plasticity models.
The book presents the principles of Damage Mechanics along with the
latest research findings. Both isotropic and anisotropic damage
mechanisms are presented. Various damage models are presented
coupled with elastic and elasto-plastic behavior. The book includes
two chapters that are solely dedicated to experimental
investigations conducted by the authors. In its last chapter, the
book presents experimental data for damage in composite materials
that appear in the literature for the first time.
. Systematic treatment of damage mechanics in composite
materials
. Includes special and advanced topics
. Includes basic principles of damage mechanics
. Includes new experimental data that appears in print for the
first time
. Covers both metals and metal matrix composite materials
. Includes new chapters on fabric tensors
. Second edition includes four new chapters
Shells and plates are critical structures in numerous engineering
applications. Analysis and design of these structures is of
continuing interest to the scienti c and engineering communities.
Accurate and conservative assessments of the maximum load carried
by a structure, as well as the equilibrium path in both the elastic
and inelastic range, are of paramount importance to the engineer.
The elastic behavior of shells has been closely investigated,
mostly by means of the nite element method. Inelastic analysis
however, especially accounting for damage effects, has received
much less attention from researchers. In this book, we present a
computational model for nite element, elasto-plastic, and damage
analysis of thin and thick shells. Formulation of the model
proceeds in several stages. First, we develop a theory for thick
spherical shells, providing a set of shell constitutive equations.
These equations incorporate the effects of transverse shear
deformation, initial curvature, and radial stresses. The proposed
shell equations are conveniently used in nite element analysis. 0
AsimpleC quadrilateral, doubly curved shell element is developed.
By means of a quasi-conforming technique, shear and membrane
locking are prevented. The element stiffness matrix is given
explicitly, making the formulation computationally ef cient. We
represent the elasto-plastic behavior of thick shells and plates by
means of the non-layered model, using an Updated Lagrangian method
to describe a small-strain geometric non-linearity. For the
treatment of material non-linearities, we adopt an Iliushin's yield
function expressed in terms of stress resultants, with isotropic
and kinematic hardening rules.
|
You may like...
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
Hampstead
Diane Keaton, Brendan Gleeson, …
DVD
R66
Discovery Miles 660
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
Southpaw
Jake Gyllenhaal, Forest Whitaker, …
DVD
R99
R24
Discovery Miles 240
|