Cellulosic materials : fibers, networks, and composites /
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, ultim...
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| Format: | eBook |
| Language: | English |
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Boston, Mass. :
Kluwer Academic Publishers,
[2002]
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| Online Access: | Connect to the full text of this electronic book |
Table of 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.