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E-RESOURCE
Author Hamad, Wadood.

Title Cellulosic materials : fibers, networks, and composites / by Wadood Hamad.

Published Boston, Mass. : Kluwer Academic Publishers, [2002]
ò002

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 UniM INTERNET resource    AVAILABLE
Physical description 1 online resource (xxviii, 239 pages) : illustrations.
Bibliography Includes bibliographical references (pages [199]-235) and index.
Contents Machine generated contents note: I -- I -- 1 Native Cellulosic Fibers: Structure and Composition 1 -- 1.1 Preliminary Discourse1 -- 1.2 Fiber Morphology and Structure4 -- 1.3 Fibril Angle Measurement in Native Cellulose Fibers. 9 -- 1.4 Chemical Constituents of Wood Fibers: -- Molecular Considerations12 -- 1.4.1 Distribution of Chemical Components in Wood -- Fibers17 -- 1.5 The Physical Nature of Cell Wall Structure18 -- 2 Fiber Solid Mechanics 25 -- 2.1 Introduction 25 -- 2.2 Conceptual Principles of Mechanics26 -- 2.2.1 Stress28 -- 2.2.2 The Material and Spatial Descriptions of Strain 32 -- 2.2.3 Engineering Infinitesimal Strains34 -- 2.2.4 The Equations of Compatibility37 -- 2.3 Composite Characteristics of Wood Fibers38 -- 2.4 Anisotropy of the Fiber Wall41 -- 2.5 Mechanical Properties of Wood Fibers45 -- 2.5.1 Fiber Strength46 -- 2.5.2 Fiber Strain Behavior47 -- 2.5.3 Radial Mechanical Properties of the Fiber Cell Wall 49 -- 3 Damage Accumulation in Fibers 53 -- 3.1 Introduction53 -- 3.2 Industrial Fiber Separation Processes: An Investigation -- into the Effects of Mechanical, Chemical and Chemi-thermal -- Pulping on Native Fiber Structure56 -- 3.2.1 Chemical Pulping56 -- 3.2.2 Mechanical Pulping57 -- 3.2.2.1 Characteristics of Mechanical Refining58 -- 3.2.3 Chemimechanical Pulping61 -- 3.3 Some Rheological Aspects of Papermaking Fibers62 -- 3.4 Fatigue Characterization in Refining65 -- 3.4.1 Fundamentals of Energy Consumption and Me- -- chanical Deformation of Wood66 -- 3.5 An Experimental Approach to Fiber -- Fatigue-Testing72 -- 3.5.1 Philosophy of the Experimental Approach73 -- 3.5.2 The Single-Fiber Tensiometer74 -- 3.5.3 Confocal Laser Scanning Microscopy85 -- 3.6 Morphological Features of Fibers: A Cumulative Fatigue -- Damage Analysis94 -- 3.6.1 Crack Formation and Propagation94 -- 3.6.2 Characteristic Material Degradation Properties105 -- 3.6.3 Structural Integrity of the Fiber Wall111 -- 3.7 Micro-mechanisms of Fiber Fatigue-Failure: A Theory .116 -- 3.8 Towards a Micro-mechanistic Theory of -- Fiber Development124 -- 3.9 Concluding Remarks131 -- 4 Fractal Simulation of Crack Propagation in Fibers 137 -- 4.1 Introduction 137 -- 4.2 Fractal Dimension138 -- 4.2.1 Basic Definitions140 -- 4.2.2 Determining the Fractal Dimension142 -- 4.3 Some Theoretical Considerations of Modeling Fracture -- Using Fractals144 -- 4.3.1 The Lattice Model145 -- 4.3.2 Equations of Motion147 -- 4.3.3 The Discrete Equations of Motion151 -- 4.3.4 The Breaking Rule153 -- 4.4 Fractal Modeling of Material Degradation in Wood Fibers 154 -- 4.4.1 A Preliminary Approach155 -- 4.4.2 Deterministic Growth of Fractal Cracks157 -- 4.4.2.1 Simulation Results159 -- 4.4.2.2 Fractal Dimension and Damage161 -- 5 Fibrous Structures: Networks and Composites 169 -- 5.1 Structural Mechanics of Fibrous Systems169 -- 5.1.1 Molecular Properties of Hydrogen-Bonded Solids 172 -- 5.1.2 Probabilistic Mechanics of Fibrous Structures. 174 -- 5.2 Cellulose Fiber-Reinforced Polymer Composites181 -- 5.2.1 Short Fiber-Reinforced Composites182 -- 5.2.2 Mechanics of Short Fiber-Reinforced Composites 185 -- 5.3 Cellulose Nanocomposites195 -- Bibliography 199 -- Subject Index 237.
Summary The objectives of this book are twofold: 1. To provide a thorough examination of the materials science of cellulosic fibers with emphasis on the characterization of structure-property relations, and 2. To advance knowledge of how to best analyze cellulosic fibrous networks and composites, and, ultimately, engineer "novel" cellulose-based systems of superior performance and functionality. The design of new materials through the study of living systems, or bio-imitation, is burgeoning to become an established field, generally referred to as biomimetics. The latter, as with materials science, in general, prominently features multi-disciplinarity where new developments in mathematics, physics, chemistry and engineering continue to inspire novel areas of research and development. The book is structured in five chapters which provide a sequential treatment of the running theme: deformation mechanics and the physical, morphological and mechanical characterization of native cellulose fibers networks and composites. The heart of the book is Chapter 3, Damage Accumulation in Fibers, which treats the experimental methodology for fatigue testing of single fibers and the engendered results. In-depth examinations of the morphology, structure and chemical composition of native cellulose fibers, and the mechanics of deformation in these natural composite fibers are proffered in Chapters 1 and 2, respectively. The fourth chapter, Fractal Simulation of Crack Propagation, presents a fractal-based approach to modeling damage accumulation in materials. Fractals lend themselves well to modeling such randomly-oriented phenomena as crack propagation and fracture. The last chapter, Fibrous Structures: Networks and Composites, comprises analytical approaches for handling networks and composites.
Notes Description based on print version record.
Subject Cellulose fibers.
Composite materials.
Cellulosefaser.
Cellulose fibers.
Composite materials.
Electronic books.
ISBN 9781461508250 (electronic bk.)
1461508258 (electronic bk.)
0792375939
9780792375937
Standard Number 10.1007/978-1-4615-0825-0