Mechanical Characterization of Materials and Wave Dispersion.Vol.2
(Sprache: Englisch)
Over the last 50 years, the methods of investigating dynamic properties have resulted in significant advances. This book explores dynamic testing, the methods used, and the experiments performed, placing a particular emphasis on the context of bounded...
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Klappentext zu „Mechanical Characterization of Materials and Wave Dispersion.Vol.2 “
Over the last 50 years, the methods of investigating dynamic properties have resulted in significant advances. This book explores dynamic testing, the methods used, and the experiments performed, placing a particular emphasis on the context of bounded medium elastodynamics. Dynamic tests have proven to be as efficient as static tests and are often easier to use at lower frequency. The discussion is divided into four parts. Part A focuses on the complements of continuum mechanics. Part B concerns the various types of rod vibrations: extensional, bending, and torsional. Part C is devoted to mechanical and electronic instrumentation, and guidelines for which experimental set-up should be used are given. Part D concentrates on experiments and experimental interpretations of elastic or viscolelastic moduli. In addition, several chapters contain practical examples alongside theoretical discussion to facilitate the readers understanding. The results presented are the culmination of over 30 years of research by the authors and as such will be of great interest to anyone involved in this field.
Inhaltsverzeichnis zu „Mechanical Characterization of Materials and Wave Dispersion.Vol.2 “
Preface xxiAcknowledgements xxxi
PART I - MECHANICAL AND ELECTRONIC INSTRUMENTATION 1
Chapter 1. Guidelines for Choosing the Experimental Set-up 3
Jean Tuong VINH
1.1. Choice of matrix coefficient to be evaluated and type of wave to be adopted 4
1.2. Influence of frequency range 8
1.3. Dimensions and shape of the samples 9
1.4. Tests at high and low temperature 10
1.5. Sample holder at high temperature 10
1.6. Visual observation inside the ambient room 11
1.7. Complex moduli of viscoelastic materials and damping capacity measurements 11
1.8. Previsional calculation of composite materials 11
1.9. Bibliography 11
Chapter 2. Review of Industrial Analyzers for Material Characterization 13
Jean Tuong VINH
2.1. Rheovibron and its successive versions 14
2.2. Dynamic mechanical analyzer DMA 01dB-Metravib and VHF 104 Metravib analyzer 17
2.3. Bruel and Kjaer complex modulus apparatus (Oberst Apparatus) 18
2.4. Dynamic mechanical analyzer DMA - Dupont de Nemours 980 20
2.5. Elasticimeter using progressive wave PPM 5 22
2.6. Bibliography 24
Chapter 3. Mechanical Part of the Vibration Test Bench 25
Jean Tuong VINH
3.1. Clamping end 25
3.2. Length correction 29
3.3. Supported end 33
3.4. Additional weight or additional torsion lever used as a boundary condition 34
3.5. Free end 34
3.6. Pseudo-clamping sample attachment 35
3.7. Sample suspended by taut threads 38
3.8. Sample on foam rubber plate serving as a mattress 41
3.9. Climatic chamber 41
3.10. Vacuum system 41
3.11. Bibliography 42
Chapter 4. Exciters and Excitation Signals 43
Jean Tuong VINH
4.1. Frequency ranges 43
4.2. Power 43
4.3. Nature and performance of various exciters 44
4.4. Room required for exciter installation 47
4.5. Details for electrodynamic shakers 48
4.6. Low cost electromagnetic exciters with permanent magnet 54
4.7. Piezoelectric and ferroelectric exciters 55
4.8. Design of
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special ferroelectric transducers 67
4.9. Power piezoelectric exciters 69
4.10. Technical details concerning ultrasonic emitters for the measurement of material stiffness coefficients on ultrasonic test benches 70
4.11. Bibliography 74
4.12. Appendix 4A. Example of ferroelectric plates and disks 74
Chapter 5. Transducers 77
Jean Tuong VINH and Michel NUGUES
5.1. Introduction 77
5.2. Transducers and their principal performance 78
5.3. The main classes of fixed reference transducers 79
5.4. Condenser-type transducer 82
5.5. Inductance transducers 89
5.6. Mutual inductance transducer 92
5.7. Differential transformer transducer 93
5.8. Contactless inductance transducer with a permanent magnet 93
5.9. Eddy current transducer 94
5.10. Seismic transducers 97
5.11. Piezoresistive accelerometer 109
5.12. Other transducers 110
5.13. Force transducers 111
5.14. Bibliography 113
5.15. Appendix 5A. Condenser with polarization 113
5.16. Appendix 5B. Eigenfrequencies of some force transducers: Rayleigh and Rayleigh-Ritz upper bound methods 115
5B.1. Rayleigh's method 116
5B.2. Rayleigh-Ritz's method 117
5B.3. Preliminary experimental test on the force transducer 117
Chapter 6. Electronic Instrumentation, Connecting Cautions and Signal Processing 119
Jean Tuong VINH
6.1. Preamplifiers and signal conditioners following the transducers 120
6.2. Cables and wiring considerations 121
6.3. Transducer selection and mountings 123
6.4. Transducer calibration 129
6.5. Digital signal processing systems: an overview 133
6.6. Other signal processing programs 141
6.7. Reasoned choice of excitation signals 142
6.8. Bibliography 146
6.9. Appendix 6A. The Shannon theorem and aliasing phenomenon 147
6.10. Appendix 6B. Time window (or weighting function)150
6B.1. Kaiser-Bessel window 151
6B.2. Hamming window 152
Chapter 7. The Frequency Hilbert Transform and Detection of Hidden Non-lineariti
4.9. Power piezoelectric exciters 69
4.10. Technical details concerning ultrasonic emitters for the measurement of material stiffness coefficients on ultrasonic test benches 70
4.11. Bibliography 74
4.12. Appendix 4A. Example of ferroelectric plates and disks 74
Chapter 5. Transducers 77
Jean Tuong VINH and Michel NUGUES
5.1. Introduction 77
5.2. Transducers and their principal performance 78
5.3. The main classes of fixed reference transducers 79
5.4. Condenser-type transducer 82
5.5. Inductance transducers 89
5.6. Mutual inductance transducer 92
5.7. Differential transformer transducer 93
5.8. Contactless inductance transducer with a permanent magnet 93
5.9. Eddy current transducer 94
5.10. Seismic transducers 97
5.11. Piezoresistive accelerometer 109
5.12. Other transducers 110
5.13. Force transducers 111
5.14. Bibliography 113
5.15. Appendix 5A. Condenser with polarization 113
5.16. Appendix 5B. Eigenfrequencies of some force transducers: Rayleigh and Rayleigh-Ritz upper bound methods 115
5B.1. Rayleigh's method 116
5B.2. Rayleigh-Ritz's method 117
5B.3. Preliminary experimental test on the force transducer 117
Chapter 6. Electronic Instrumentation, Connecting Cautions and Signal Processing 119
Jean Tuong VINH
6.1. Preamplifiers and signal conditioners following the transducers 120
6.2. Cables and wiring considerations 121
6.3. Transducer selection and mountings 123
6.4. Transducer calibration 129
6.5. Digital signal processing systems: an overview 133
6.6. Other signal processing programs 141
6.7. Reasoned choice of excitation signals 142
6.8. Bibliography 146
6.9. Appendix 6A. The Shannon theorem and aliasing phenomenon 147
6.10. Appendix 6B. Time window (or weighting function)150
6B.1. Kaiser-Bessel window 151
6B.2. Hamming window 152
Chapter 7. The Frequency Hilbert Transform and Detection of Hidden Non-lineariti
... weniger
Bibliographische Angaben
- Autoren: Yvon Chevalier , Tuong Jean Vinh
- 2010, 1. Auflage, 458 Seiten, Maße: 16,2 x 23,4 cm, Gebunden, Englisch
- Verlag: Wiley & Sons
- ISBN-10: 1848211937
- ISBN-13: 9781848211933
Sprache:
Englisch
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