Meguid Advances in Nanocomposites

Modeling, Characterization and Applications
1. Auflage 2016
ISBN: 978-3-319-31662-8
Verlag: Springer Nature Switzerland
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 274 Seiten

This book introduces nanocomposite materials possessing a broad range of multifunctionality. It elucidates novel and highly original developments from recent research and development of these critical, new engineered materials. The collection examines multiscale modeling, molecular dynamics, atomistic based continuum, synthesis and characterization, condition health monitoring, spectroscopic characterization techniques, self-lubricating materials, and conducting polymers. The volume features the latest efforts of some of the most eminent researchers in the world.  Providing a range of perspectives from the laboratory and the field, Advances in Nanocomposites: Modeling and Characterization is ideal for engineers, physicists, and materials scientists in academia and industry.


Shaker Meguid is Professor of Mechanical and Industrial Engineering at the University of Toronto. He obtained his Ph.D. in Applied Mechanics from UMIST and taught Applied Mechanics at Oxford University, Cranfield University (England), University of Toronto, Cairo University (Egypt) and Nanyang Technolog.ical University (NTU-Singapore). His research activities include computational mechanics, nanoengineering, advanced and smart composites, fracture mechanics and failure prevention. He has published over 400 papers and is founding Editor-in-Chief of Int. J of Mechanics and Materials in Design.

Autoren/Hrsg.

Meguid, Shaker A.

Inhaltsverzeichnis

1;Preface;8
2;Contents;10
3;Contributors;12
4;Chapter 1: Multiscale Modeling of Nanoreinforced Composites;14
4.1;1.1 Introduction;14
4.2;1.2 Molecular Modeling;17
4.2.1;1.2.1 Basics of MD Simulations;18
4.2.2;1.2.2 Modeling of Nanocomposite and Its Constituents;21
4.2.2.1;1.2.2.1 Modeling of CNTs;22
4.2.2.2;1.2.2.2 Modeling of Pure Epoxy;25
4.2.2.3;1.2.2.3 Modeling of CNT-Epoxy Interface;27
4.2.2.4;1.2.2.4 Modeling of Nanocomposite Containing Agglomerated CNTs;28
4.2.2.5;1.2.2.5 Modeling of Nanocomposite Containing Wavy CNTs;31
4.2.2.6;1.2.2.6 CNT Pullout Simulations;33
4.3;1.3 ABC Mechanics Technique;36
4.3.1;1.3.1 Basics of ABC Technique;36
4.3.2;1.3.2 Modeling of Nanocomposites;38
4.4;1.4 Micromechanics Modeling;43
4.5;1.5 Large-Scale Hybrid Monte Carlo FEA Simulations;47
4.6;References;48
5;Chapter 2: Piezoelectric Response at Nanoscale;53
5.1;2.1 Introduction;53
5.2;2.2 Measurement of Nano-piezoelectricity;55
5.3;2.3 Effect of Piezoelectric Surface Layer;58
5.4;2.4 Piezoelectricity of Nanostructures;61
5.4.1;2.4.1 Effective Piezoelectric Coefficients;63
5.4.2;2.4.2 Importance of Coefficients;65
5.5;2.5 Influence of Piezoelectricity on Mechanical Responses of Nanostructures;68
5.5.1;2.5.1 On the Piezoelectric Potential of GaN Nanotubes;69
5.5.1.1;2.5.1.1 Material Properties of GaN Nanotubes;69
5.5.1.1.1;Determination of the Elastic Property;71
5.5.1.1.2;Determination of the Piezoelectric Property;71
5.5.1.1.3;Determination of the Dielectric Property;71
5.5.1.2;2.5.1.2 Core-Surface Model;72
5.5.1.3;2.5.1.3 Piezoelectric Potential in GaN Nanotubes;74
5.5.2;2.5.2 Piezoelectric Effect on the Intrinsic Dissipation in Oscillating GaN Nanobelts;78
5.6;2.6 Conclusion Remarks;84
5.7;References;85
6;Chapter 3: Nanoscale Mechanical Characterization of 1D and 2D Materials with Application to Nanocomposites;89
6.1;3.1 Introduction;89
6.2;3.2 In Situ Mechanical Characterization of 1D and 2D Nanomaterials;90
6.2.1;3.2.1 MEMS-Based In Situ Characterization;90
6.2.2;3.2.2 In Situ Shear and Peeling Techniques;91
6.2.3;3.2.3 In Situ Raman Spectroscopy Techniques;92
6.3;3.3 Probe-Based Mechanical Characterization of Nanocomposite Materials;93
6.3.1;3.3.1 Friction Force Microscopy and Shear Testing;93
6.3.2;3.3.2 Ultrathin Film Deflection and AFM-Based Methods;94
6.3.3;3.3.3 Adhesion Characterization;97
6.4;3.4 Indirect Mechanical Characterization of Interfaces Within Nanocomposites;100
6.4.1;3.4.1 Dynamic Mechanical Analysis;100
6.4.2;3.4.2 Micro Tensile Testing, Compression, and Nanoindentation;101
6.5;3.5 Perspectives and Future Directions for Research;102
6.6;References;103
7;Chapter 4: Effects of Nanoporosity on the Mechanical Properties and Applications of Aerogels in Composite Structures;108
7.1;4.1 Introduction;109
7.2;4.2 Types of Aerogels;110
7.2.1;4.2.1 Alumina Aerogel;111
7.2.2;4.2.2 Carbon Aerogel;111
7.2.3;4.2.3 Silica Aerogel;112
7.3;4.3 Aerogel Porosity and Properties;113
7.3.1;4.3.1 Surface Nanopores and Their Formation;113
7.3.2;4.3.2 Pore Structure;114
7.3.3;4.3.3 Properties of Silica Aerogel;115
7.3.3.1;4.3.3.1 Density;115
7.3.3.2;4.3.3.2 Optical Properties;115
7.3.3.3;4.3.3.3 Hydrophobicity;115
7.3.3.4;4.3.3.4 Thermal Conductivity;116
7.3.3.5;4.3.3.5 Modulus and Strength;116
7.4;4.4 Numerical Characterization of Aerogel Structures and Properties;116
7.4.1;4.4.1 Molecular Dynamics: Theory and Formulation;118
7.4.1.1;4.4.1.1 Interatomic Interaction Potentials;119
7.4.1.2;4.4.1.2 Thermal Conductivity Simulations;121
7.4.2;4.4.2 Numerical Generation of Aerogel Structures;123
7.4.3;4.4.3 Solid Thermal Conductivity of Silica Aerogels;124
7.4.3.1;4.4.3.1 Dense Amorphous Silica with BKS Potential;124
7.4.3.2;4.4.3.2 Silica Aerogel with BKS Potential;125
7.4.3.3;4.4.3.3 Dense Amorphous Silica with Tersoff Potential;128
7.4.3.4;4.4.3.4 Silica Aerogel with Tersoff Potential;130
7.5;4.5 Conclusions;133
7.6;References;134
8;Chapter 5: Smart Fuzzy Fiber-Reinforced Piezoelectric Composites;138
8.1;5.1 Piezoelectric Effects;138
8.2;5.2 Introduction to Smart Fuzzy Fiber-Reinforced Composite;139
8.3;5.3 Three-Dimensional Effective Properties of 1-3 Piezoelectric Composites;141
8.4;5.4 Effective Properties of the SFFRC;146
8.4.1;5.4.1 Micromechanics Model of the PMNC;147
8.4.2;5.4.2 Effective Elastic Properties of the PCFF;151
8.4.3;5.4.3 Effective Properties of the SFFRC;153
8.5;5.5 Determination of Volume Fractions;154
8.6;5.6 Numerical Example;155
8.7;References;160
9;Chapter 6: Composite Nanowires for Room-Temperature Mechanical and Electrical Bonding;162
9.1;6.1 Introduction;162
9.2;6.2 Fabrication of Anodic Aluminum Oxide Membrane;164
9.3;6.3 Synthesis of Copper/Parylene Composite Nanowires;167
9.4;6.4 Synthesis of Copper/Polystyrene Composite Nanowires;169
9.5;6.5 Fabrication of Carbon Nanotube Array;171
9.6;6.6 Mechanical and Electrical Performances of Nanowire Surface Fasteners;173
9.6.1;6.6.1 Performances of Copper/Parylene Nanowire Surface Fasteners;174
9.6.2;6.6.2 Performances of Copper/Polystyrene Nanowire Surface Fasteners;178
9.6.3;6.6.3 Performances of CNT-Copper/Parylene Nanowire Surface Fasteners;180
9.7;6.7 Conclusions;182
9.8;References;183
10;Chapter 7: Recent Developments in Multiscale Thermomechanical Analysis of Nanocomposites;187
10.1;7.1 Introduction;187
10.2;7.2 Atomistic Thermomechanical Properties of Nanostructures;189
10.3;7.3 Results and Discussion;194
10.4;7.4 Conclusions;196
10.5;References;197
11;Chapter 8: Magnetoelectric Coupling and Overall Properties of a Class of Multiferroic Composites;199
11.1;8.1 Introduction;199
11.2;8.2 The Coupled Magneto-Electro-Elastic Constitutive Equations;203
11.3;8.3 The Effective Magneto-Electro-Elastic Tensor, L, of the Composite with a Perfect Interface;205
11.4;8.4 The Influence of an Imperfect Interface on L;206
11.5;8.5 Results and Discussion;207
11.5.1;8.5.1 Effective Properties of CFO-in-BTO and BTO-in-CFO Composites with a Perfect Interface;209
11.5.1.1;8.5.1.1 The Magnetoelectric Coupling Coefficients, ?33 and ?11;209
11.5.1.2;8.5.1.2 The Piezoelectric Constants, e31,e33, and e15;211
11.5.1.3;8.5.1.3 The Piezomagnetic Constants, q31,q33, and q15;212
11.5.1.4;8.5.1.4 The Electric Permittivity, kappa33 and kappa11;213
11.5.1.5;8.5.1.5 The Magnetic Permeability, mu33 and mu11;214
11.5.1.6;8.5.1.6 The Five Elastic Constants, C11,C12,C13,C33, and C44;215
11.5.2;8.5.2 Properties of CFO-in-BTO and BTO-in-CFO Composites with an Imperfect Interface;217
11.5.2.1;8.5.2.1 The Magnetoelectric Coupling Coefficients, ?33 and ?11, with an Imperfect Interface;217
11.5.2.2;8.5.2.2 The Piezoelectric Constants, e31,e33, and e15, with an Imperfect Interface;218
11.5.2.3;8.5.2.3 The Piezomagnetic Constants, q31,q33, and q15, with an Imperfect Interface;220
11.5.2.4;8.5.2.4 The Electric Permittivity, kappa33 and kappa11, with an Imperfect Interface;221
11.5.2.5;8.5.2.5 The Magnetic Permeability, mu33 and mu11, with an Imperfect Interface;222
11.5.2.6;8.5.2.6 The Five Elastic Constants, C11,C12,C13,C33, and C44, with an Imperfect Interface;223
11.5.3;8.5.3 Why Is the Imperfect Interface Model Needed?;225
11.6;8.6 Conclusions;226
11.7;Appendix 1: The Eight Variants of the Coupled Constitutive Equations;228
11.8;Appendix 2: The Determination of the Magneto-Electro-Elastic S-Tensor;230
11.9;Appendix 3: Explicit Results for ?33 and ?11 of the 1-3 and 2-2 Multiferroic Composites with a Perfect and an Imperfect Interf...;234
11.9.1;The 1-3 Multiferroic Fibrous Composites with a Perfect Interface;234
11.9.2;The 1-3 Multiferroic Fibrous Composites with an Imperfect Interface;235
11.9.3;The 2-2 Multiferroic Multilayers with a Perfect Interface;238
11.9.4;The 2-2 Multiferroic Multilayers with an Imperfect Interface;239
11.10;Appendix 4: The Elastic C44 of the Fibrous Multiferroic Composite and the Purely Elastic Composite;240
11.11;References;241
12;Chapter 9: Snap-Through Buckling of Micro/Nanobeams in Bistable Micro/Nanoelectromechanical Systems;244
12.1;9.1 Introduction;244
12.2;9.2 Size Effect on Symmetric Snap-Through Buckling of Microbeam;247
12.2.1;9.2.1 Formulation;247
12.2.1.1;9.2.1.1 Governing Equations;247
12.2.1.2;9.2.1.2 Influence of Intermolecular Forces;253
12.2.1.3;9.2.1.3 One Degree of Freedom Reduced-Order Model;255
12.2.2;9.2.2 Results and Discussions;257
12.2.2.1;9.2.2.1 Influence of Initial Arch Rise on Snap-Through Behavior;257
12.2.2.2;9.2.2.2 Size and Fringing Field Effects on Necessary Snap-Through Criterion;258
12.3;9.3 Surface Effects on Asymmetric Bifurcation of Nanobeam;261
12.3.1;9.3.1 Formulation;261
12.3.1.1;9.3.1.1 Surface Effects;261
12.3.1.2;9.3.1.2 Governing Equations;262
12.3.1.3;9.3.1.3 Two Degrees of Freedom Reduced-Order Model;264
12.3.2;9.3.2 Results and Discussions;265
12.3.2.1;9.3.2.1 Influence of Initial Arch Rise on Asymmetric Bifurcation Behavior;265
12.3.2.2;9.3.2.2 Surface Effects on Necessary Symmetry-Breaking Criterion;266
12.4;9.4 Conclusions;269
12.5;References;270
13;Index;273