Dattaguru / Gopalakrishnan / Aatre IUTAM Symposium on Multi-Functional Material Structures and Systems

Proceedings of the the IUTAM Symposium on Multi-Functional Material Structures and Systems, Bangalore, India, December 10-12, 2008
1. Auflage 2010
ISBN: 978-90-481-3771-8
Verlag: Springer Netherlands
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, Band 19, 396 Seiten

Reihe: IUTAM Bookseries

This Symposium provided an international forum for exchange of ideas and creation of knowledge in recent advances on Multi-Functional Material Structures and Systems. Novel theories, mathematical models, analyses, and application of computational and experimental methods are the focus of the Symposium. In particular, it reflects the state of the art in mathematical modeling, computational methods, new experimental methods, new and advanced engineering applications in emerging technologies advanced sensors, structural health monitoring, MEMS, and advanced control systems.

Autoren/Hrsg.

Dattaguru, B.

Gopalakrishnan, S.

Gopalakrishnan, Srinivasan

Aatre, V. K.

Inhaltsverzeichnis

1;Preface;6
2;Contents;8
3;Contributors;12
4;Section I New Materials A: Functionally Graded Materials & Shape Memory Alloys;17
4.1;Functionally Graded Shells with Distributed Piezoelectric Sensors and Actuators for Active Vibration Control;18
4.1.1;1 Introduction;18
4.1.2;2 Formulation;19
4.1.2.1;2.1 Strain Energy and Electrical Energy;20
4.1.2.2;2.2 Kinetic Energy;21
4.1.2.3;2.3 Piezoelastic Governing Equations of Motion;22
4.1.3;3 Results and Discussion;23
4.1.3.1;3.1 Aluminum–Zirconia FGM Plate;23
4.1.3.2;3.2 Active Vibration Control of Aluminum–Zirconia FGM Shell Panel with PZT Sensor and Actuator Patches;24
4.1.4;4 Summary and Conclusions;27
4.1.5;References;28
4.2;A Numerical Investigation of the Dynamic Behaviour of Functionally Graded Foams;29
4.2.1;1 Introduction;29
4.2.2;2 Methodology;31
4.2.2.1;2.1 Striker Impacts;32
4.2.2.2;2.2 Split Hopkinson Pressure Bar;32
4.2.3;3 Discussion;33
4.2.3.1;3.1 Striker Impacts;33
4.2.3.2;3.2 Split Hopkinson Pressure Bar;34
4.2.4;4 Conclusions;36
4.2.5;References;37
4.3;Nonlinear Stability of Functionally Graded Plates Subjected to Aero-thermo-mechanical Loads;39
4.3.1;1 Introduction;39
4.3.2;2 Formulation;40
4.3.3;3 Results and Discussion;42
4.3.3.1;3.1 Mechanical Post-Buckling of Si3N4/SUS304 FGM Plates;42
4.3.3.2;3.2 Thermal Post-Buckling of Aluminum–Alumina FGM Plates;44
4.3.3.3;3.3 Flutter Characteristics of FGM Plates;45
4.3.4;References;46
4.4;A Generalized Three Species Model for Shape Memory Alloys;48
4.4.1;1 Introduction;48
4.4.2;2 Thermodynamic Framework of the Model;49
4.4.3;3 Integration Algorithm for Time Discrete Model;51
4.4.4;4 Constraint on the Hardening Functions ;51
4.4.5;5 Case Study: Symmetric Dissipation Potential for Forward and Reverse Transformation;53
4.4.6;6 Role of Hardening Functions;54
4.4.6.1;6.1 Effect of Interaction Hardening;54
4.4.6.2;6.2 Effect of Constraint Condition on Hardening Parameters;54
4.4.7;7 Summary Remarks;55
4.4.8;References;56
4.5;Use of SMA Constitutive Model in Finite Element Analysis of Wire-Based Actuators;57
4.5.1;1 Introduction;57
4.5.2;2 Constitutive Model for SMA;58
4.5.3;3 FE Implementation;60
4.5.4;4 Results and Discussion;61
4.5.4.1;4.1 Validation;61
4.5.5;5 Concluding Remarks;64
4.5.6;References;64
4.6;Time Dependent Deformations in Concrete: A Multi-scale Approach;66
4.6.1;1 Introduction;67
4.6.2;2 Experimental Program;68
4.6.3;3 Analysis and Discussion;70
4.6.4;4 Closing Remarks;74
4.6.5;References;75
4.7;Higher Order Theories of Functionally Graded Beams and Plates;76
4.7.1;1 Introduction;76
4.7.2;2 Theoretical Formulation;77
4.7.2.1;2.1 Effective Moduli of Two-phase Composites;79
4.7.2.2;2.2 Equations of Equilibrium;79
4.7.3;3 Numerical Results and Discussions;80
4.7.4;4 Conclusions;83
4.7.5;References;84
5;Section II New Materials B: Nano Materials and Composites;86
5.1;A Strain Sensor from a Polymer/Carbon Nanotube Nanocomposite;87
5.1.1;1 Introduction;88
5.1.2;2 Theory;88
5.1.3;3 Verifications;91
5.1.4;4 Influence of Various Parameters on Piezoresistivity Using Numerical Model;92
5.1.5;5 Influence of Various Parameters on Piezoresistivity Using Experiments;94
5.1.6;6 Conclusions;95
5.1.7;References;96
5.2;A Hysteresis Compensator Based on a Modified Dynamic Preisach Model for Conductive Polymer Nanocomposites;97
5.2.1;1 Introduction;97
5.2.2;2 Modified Preisach Model;98
5.2.3;3 Everett Integral and Everett Surface;100
5.2.4;4 Everett surface Using Both Hysteresis and Dynamic Relaxation Operators;101
5.2.5;5 Forward Calculation Using Everett Surface;102
5.2.6;6 Compensation;102
5.2.7;7 Results and Discussion;103
5.2.8;8 Conclusion;104
5.2.9;References;104
5.3;Multi-Axial Behavior of Ferroelectrics with Two Types of Micro–Macro Mechanical Models;105
5.3.1;1 Introduction;106
5.3.2;2 Model I: Simultaneous Evolution Model;106
5.3.2.1;2.1 Driving Force and Evolution Equations;107
5.3.3;3 Model II: Pressure Dependent Model;110
5.3.3.1;3.1 Modified Switching Criterion with Boundary Constraints;110
5.3.4;4 Conclusions;112
5.3.5;References;112
5.4;Active Single Walled Carbon Nanotube–Polymer Composites;113
5.4.1;1 Introduction;113
5.4.2;2 Experimental Studies;114
5.4.3;3 Results;115
5.4.4;4 Discussion;118
5.4.5;5 Conclusion;119
5.4.6;References;119
5.5;Modeling of Fibre Formation and Oxygen Permeability in Micro-fibrillar Polymer-Polymer Composites;121
5.5.1;1 Introduction;121
5.5.2;2 Experimental Details;122
5.5.3;3 Results and Discussion;123
5.5.4;4 Modeling;125
5.5.5;5 Conclusions;128
5.5.6;References;129
6;Section III Multifunctional Material Systems;130
6.1;Multiscale Computational Analysis of Biomechanical Systems;131
6.1.1;1 Introduction;131
6.1.2;2 Modeling of Soft Tissue;132
6.1.2.1;2.1 Biphasic Soft Tissues;132
6.1.2.2;2.2 Fluid Tissue Interface Modeling;133
6.1.2.3;2.3 Blood Flow Through Atherosclerotic Artery;134
6.1.3;3 Constitutive Modeling of Solid Tumor;136
6.1.4;4 Biomechanical Analysis of Uterus During Parturition;137
6.1.4.1;4.1 Mathematical Homogenization of Myometrial Tissue;137
6.1.5;5 Conclusions;138
6.1.6;References;139
6.2;Effect of Magnetic-Field on Stress–Strain Behavior of Magneto-Sensitive Elastomers;140
6.2.1;1 Introduction;140
6.2.2;2 Mathematical Modeling;141
6.2.3;3 Simulation;143
6.2.4;4 Results and Discussion;145
6.2.5;5 Conclusion;148
6.2.6;References;149
6.3;Effects of Functionalization on the Morphology, Cure Kinetics and Mechanical Behavior of Thermosetting Polymers;150
6.3.1;1 Introduction;150
6.3.2;2 Experimental Studies;151
6.3.2.1;2.1 Materials;151
6.3.2.2;2.2 Functionalization by Oxidation;151
6.3.2.3;2.3 Functionalization by Fluorination;152
6.3.2.4;2.4 Processing of Epoxy Nanocomposites;152
6.3.2.5;2.5 Characterization;152
6.3.2.5.1;2.5.1 Interfacial Interaction;152
6.3.2.5.2;2.5.2 Flexural Characterization;153
6.3.2.5.3;2.5.3 Morphological Characterization;153
6.3.2.5.4;2.5.4 Curing Kinetics;153
6.3.3;3 Results and Discussion;153
6.3.3.1;3.1 Functionalization of MWCNTs;153
6.3.3.1.1;3.1.1 Effects of Functionalization on Morphology;153
6.3.3.1.2;3.1.2 Surface Interaction and Properties (FTIR and RamanSpectroscopy Analysis);154
6.3.3.2;3.2 Curing Kinetics by DSC and FTIR;156
6.3.3.3;3.3 Flexural Characterization;157
6.3.3.4;3.4 Morphology of Fracture Surface;157
6.3.3.5;3.5 Conclusion;158
6.3.4;References;159
6.4;A Study on Polarization-Electric Field Nonlinearity in Smart Composite Structures;160
6.4.1;1 Introduction;160
6.4.2;2 Hysteresis Modeling;161
6.4.2.1;2.1 Formulation;161
6.4.2.2;2.2 Validation of Constitutive Relations;162
6.4.3;3 Analysis of Laminated Composite Plates;164
6.4.3.1;3.1 Finite Element Formulation;164
6.4.3.2;3.2 Deformation Models;164
6.4.3.3;3.3 Linear and Nonlinear Analysis of Composite Plates with Segmented Piezo Patches;165
6.4.4;4 Concluding Remarks;167
6.4.5;References;167
6.5;Multifunctional Components in Sodium Cooled Fast Reactor: Design and Development;169
6.5.1;1 Introduction;169
6.5.2;2 Challenges and Achievements in Design and Manufacture of PFBR Components;170
6.5.3;3 Important Multifunctional Components in FBR;171
6.5.3.1;3.1 Fuel Clad and Fuel Subassembly;172
6.5.3.2;3.2 Grid Plate;172
6.5.3.3;3.3 Main Vessel;174
6.5.3.4;3.4 Top Shield ;175
6.5.4;4 R&D Towards Design Validation: A Case Study on Main Velsse;176
6.5.4.1;4.1 Investigation of Buckling Under Seismic Induced Forces;176
6.5.4.2;4.2 Structural Integrity Assessment Under CDA;177
6.5.5;5 Conclusion;178
6.5.6;References;179
7;Section IV Smart Sensors, Structural Health Monitoring;180
7.1;From Structural Mechanics to Inspection Processes: Getting Structural Health Monitoring into Application for Riveted Metallic Structures;181
7.1.1;1 Introduction;181
7.1.2;2 State-of-the-Art in Riveted Joint Monitoring;182
7.1.3;3 Acoustic Signals Reflected from Differently Shaped Boundaries;186
7.1.4;4 Finding Components with Adequate SHM Potential;188
7.1.5;5 Conclusions;189
7.1.6;References;189
7.2;Shaped Modal Sensors for Uncertain Dynamical Systems;190
7.2.1;1 Introduction;191
7.2.2;2 Defining Shaped Sensors for Beam Structures;191
7.2.3;3 Modal Sensors for the Baseline System;193
7.2.4;4 Modal Sensors for Uncertain Systems;194
7.2.5;5 Modal Statistics for Uncertain Dynamical Systems;195
7.2.6;6 Numerical Example;197
7.2.7;7 Conclusion;199
7.2.8;References;200
7.3;Sensor Failure Detection Using Interaction Matrix Formulation;201
7.3.1;1 Introduction;202
7.3.2;2 Indirect Method;203
7.3.3;3 Direct Method;206
7.3.4;4 Simulation;207
7.3.5;5 Experimental Verification;210
7.3.6;6 Conclusion;212
7.3.7;References;212
7.4;Resonant MEMS Sensors;213
7.4.1;1 MEMS Resonator Structures;213
7.4.1.1;1.1 Resonator Building Blocks: Beams, Plates and Membranes;214
7.4.1.2;1.2 Scaling Resonant Frequency;215
7.4.2;2 Resonator Response and the Effect of Q ;216
7.4.3;3 The Quest for High Q and the Control of Damping;218
7.4.4;4 Frequency Tuning and Stability;220
7.4.5;5 Applications;221
7.4.6;6 Conclusions;221
7.4.7;References;222
8;Section V Applications;223
8.1;Compressive Behavior of Fibre Reinforced Honeycomb Cores;224
8.1.1;1 Introduction;224
8.1.2;2 Honeycomb Core Manufacturing;225
8.1.3;3 Out-of-Plane Compressive Behavior of Reinforced Honeycombs;226
8.1.4;4 Results and Discussion;229
8.1.4.1;4.1 Quantitative Comparisons of Strength Between the Reinforced and Un-reinforced Honeycombs;230
8.1.4.2;4.2 Comparison of Theory with Experimental Result;231
8.1.5;5 Concluding Remarks;231
8.1.6;References;231
8.2;Strain-Space Solution for the Elasto-plastic Analysis of Adhesively Bonded Single Lap Joint;233
8.2.1;1 Introduction;233
8.2.2;2 Strain Space Formulation of Plasticity;234
8.2.3;3 Finite Element Implementation;237
8.2.4;4 Results and Discussions;238
8.2.5;5 Conclusions;238
8.2.6;References;240
8.3;Design and Development of a Smart Composite T-Tail for Transport Aircraft;241
8.3.1;1 Introduction;241
8.3.2;2 PZT Amplification Mechanism;242
8.3.3;3 Smart T-Tail Analysis;244
8.3.4;4 Open and Closed Loop Experiments;245
8.3.4.1;4.1 Active Vibration Control Studies;246
8.3.5;5 Conclusions;248
8.3.6;References;249
8.4;Manufacturing of Multi-functional Composites;250
8.4.1;1 Introduction;250
8.4.2;2 Composites Manufacturing Techniques;251
8.4.2.1;2.1 Dry Fibre Preform Technology;251
8.4.2.1.1;2.1.1 3D Weaving;253
8.4.3;3 Non-contact Sensing;255
8.4.4;4 Conclusion;256
8.4.5;References;256
9;Section VI Computational Methods- I;257
9.1;Iso-Spectral Rotating and Non-Rotating Beams;258
9.1.1;1 Introduction;258
9.1.2;2 Formulation;259
9.1.3;3 Finite Element Solution;261
9.1.4;4 Application to Multifunctional Structures;263
9.1.5;5 Conclusions;265
9.1.6;References;265
9.2;Innovative Energy Absorbing Composite Tubes Incorporating Extension-Torsion Coupling, Stitch Ripping, and Foam Crushing;266
9.2.1;1 Introduction;266
9.2.1.1;1.1 Background and Motivation;266
9.2.1.2;1.2 Objectives;267
9.2.2;2 Governing Concepts;267
9.2.3;3 Modeling and Results;268
9.2.3.1;3.1 Tension-torsion Stitch Ripping Device (TTSRD);269
9.2.3.1.1;3.1.1 Optimization of TTSRD Phase;271
9.2.3.2;3.2 Crush Tube Part of Device;271
9.2.3.3;3.3 TTSRD with Crush Foam Filling;273
9.2.3.3.1;3.3.1 Optimized Results for TTSRD with Crush Foam;273
9.2.4;4 Conclusions and Future Work;274
9.2.5;References;275
9.3;A Pseudo-dynamical Systems Approach to Inverse Problems;276
9.3.1;1 Introduction;276
9.3.2;2 A Deterministic Pseudo-dynamical Approach;277
9.3.2.1;2.1 Numerical Experiment on a Linear Inverse Problem;279
9.3.3;3 A Pseudo-dynamical Ensemble Kalman Filter (EnKF) for Elastography;280
9.3.3.1;3.1 Numerical Experiments;283
9.3.4;References;285
9.4;Force Reconstruction for Wave Based Damage Detection;286
9.4.1;1 Introduction;287
9.4.2;2 Mathematical Formulation;288
9.4.3;3 Numerical Experiments;289
9.4.3.1;3.1 Isotropic Rod with Degraded Zone;290
9.4.3.2;3.2 De-laminated Composite Beam;291
9.4.4;4 Conclusions;293
9.4.5;References;293
9.5;On Numerical Integration of Discontinuous Approximations in Partition of Unity Finite Elements;294
9.5.1;1 Introduction;295
9.5.2;2 Schwarz-Christoffel Conformal Mapping;296
9.5.3;3 Strain Smoothing in XFEM;297
9.5.4;4 Numerical Examples;297
9.5.4.1;4.1 Infinite Plate;298
9.5.4.2;4.2 Plate with Circular Inclusion;299
9.5.5;5 Conclusion;300
9.5.6;References;301
10;Section VII Computational Methods II;302
10.1;Approximate Evaluations of the Modal Effective Electromechanical Coupling Coefficient;303
10.1.1;1 Introduction;303
10.1.2;2 Review of Modal Effective EMCC Approximations;304
10.1.3;3 Energy-Based Modal Effective EMCC Approximations;306
10.1.4;4 New Approximation of the Modal Effective EMCC;307
10.1.5;5 Modal Effective Viscoelastic Loss Factor-EMCC Analogy;308
10.1.6;6 Numerical Assessments and Validations;309
10.1.7;7 Conclusions;310
10.1.8;References;310
10.2;Distributed Point Source Model for Wave Propagation Through Multi-phase Systems;312
10.2.1;1 Introduction;312
10.2.2;2 Distributed Point Source Method (DPSM);313
10.2.2.1;2.1 Ultrasonic Field in Homogeneous Fluid;314
10.2.2.2;2.2 Ultrasonic Field in Multi-Layered Fluids;314
10.2.2.3;2.3 Transient Wave Propagation Using Spectral Approach;315
10.2.3;3 Numerical Results and Discussions;316
10.2.4;4 Conclusions;318
10.2.5;References;319
10.3;Intrinsic Localized Modes in Micro-scale Oscillator Arrays Subjected to Deterministic Excitation and White Noise;320
10.3.1;1 Introduction;320
10.3.2;2 Effects of Noise on ILMs: Computational Results;322
10.3.2.1;2.1 Discussion;325
10.3.3;3 The Fokker-Planck Formalism;325
10.3.3.1;3.1 Stochastic Klein-Gordon Equations;326
10.3.3.2;3.2 The Fokker-Planck Equation;326
10.3.3.3;3.3 Moment Evolution Equations;326
10.3.3.4;3.4 Numerical Solutions of Moment Evolution Equations;327
10.3.3.5;3.5 Discussion;327
10.3.4;4 Concluding Remarks;328
10.3.5;References;329
10.4;A Theoretical and Computational Framework for Modeling Diffusion-Driven Boundary Motion Without Remeshing;330
10.4.1;1 Introduction;330
10.4.2;2 Theoretical Framework;332
10.4.3;3 Computational Framework;333
10.4.4;4 Results and Discussions;334
10.4.5;5 Summary;335
10.4.6;References;336
10.5;Multiscale Simulation of Metal/Ceramic Interface Fracture;338
10.5.1;1 Introduction;339
10.5.2;2 Material Behaviour at Sub Micron Level;340
10.5.3;3 The Cohesive Model;341
10.5.4;4 Finite Element Analysis;342
10.5.5;5 Results and Discussion;343
10.5.5.1;5.1 Stationary crack;343
10.5.5.2;5.2 Crack Propagation Using Cohesive Modelling Approach;344
10.5.5.3;5.3 Correlation between Local Adhesion Capacity and Macroscopic Fracture Energy;348
10.5.6;6 Conclusion;349
10.5.7;References;350
11;Editor’s Bio-Sketches;351