Acoustic Emission Monitoring of CFRP Laminated Composites ...

More documents

Recommendations

Info

Doctoral Committee Magnús Þór Jónsson, Professor Faculty of Engineering University of Iceland Thomas Philip Rúnarsson, Professor Faculty of Engineering University of Iceland Jón Atli Benediktsson, Professor Faculty of Engineering University of Iceland Opponents Kanji Ono, Professor Emeritus Henry Samueli School of Engineering and Applied Science, UCLA, Los Angeles, California, USA Karen Holford, Professor Cardi School of Engineering, Cardi, Wales, UK. University of Iceland Faculty of Engineering VR-II, Hjarðarhaga 2-6, IS-107 Reykjavik, Iceland Phone +354 525 4648, Fax +354 525 4632 verk@hi.is www.hi.is ISBN: 978-9979-9812-6-8 Printed in Iceland by Prentsmiðjan Oddi ehf, 2008
To my family.
Page 1: Acoustic Emission Monitoring of CFR
Page 5 and 6: Abstract The condition monitoring o
Page 7 and 8: Ágrip (in Icelandic) Líftími vé
Page 9 and 10: Preface This dissertation has been
Page 11 and 12: Acknowledgements There are many peo
Page 13 and 14: Contents Abstract Ágrip (in Icelan
Page 15 and 16: "If all diculties were known at the
Page 17 and 18: 1.2 Contributions 3 thermore, the A
Page 19 and 20: 1.3 Outline 5 description of how AE
Page 21 and 22: "Prediction is very dicult, especia
Page 23 and 24: 2.2 Defects and Damage Mechanisms 9
Page 31 and 32: 2.3 Fatigue 17 Figure 2.4 Schematic
Page 33 and 34: 2.3 Fatigue 19 Van Paepegem and Deg
Page 35 and 36: 2.4 Discussion and Summary 21 how t
Page 37 and 38: "Enjoy the Silence." Depeche Mode 3
Page 39 and 40: 3.1 Background 25 If a composite is
Page 41 and 42: 3.1 Background 27 3.1.2 Measurement
Page 43 and 44: 3.1 Background 29 that of velocity
Page 45 and 46: 3.1 Background 31 Hit-based Analysi
Page 47 and 48: 3.1 Background 33 magnied dierently
Page 49 and 50: 3.1 Background 35 3.1.4 AE Analysis
Page 51 and 52: 3.1 Background 37 300 kHz. Iwamoto
Page 53 and 54:
3.2 AE Hit Determination 39 whereby
Page 55 and 56:
3.2 AE Hit Determination 41 signal,
Page 57 and 58:
3.2 AE Hit Determination 43 1 2 3 4
Page 59 and 60:
3.2 AE Hit Determination 45 1 2 3 4
Page 61 and 62:
3.2 AE Hit Determination 47 Figure
Page 63 and 64:
3.2 AE Hit Determination 49 (a)The
Page 65 and 66:
3.3 Features 51 is a function of th
Page 67 and 68:
3.3 Features 53 the data compressio
Page 69 and 70:
3.3 Features 55 An intuitive rhythm
Page 71 and 72:
3.4 AE Source Tracking 57 H P , is
Page 73 and 74:
3.4 AE Source Tracking 59 The AE si
Page 75 and 76:
3.4 AE Source Tracking 61 dierent s
Page 77 and 78:
3.5 Summary 63 quantifying and visu
Page 79 and 80:
"Door meten tot weten" [Through mea
Page 81 and 82:
4.1 The Prosthetic Foot 67 (a)The m
Page 83 and 84:
4.2 Test Setup & Procedure 69 the t
Page 85 and 86:
4.3 Data Acquisition 71 Table 4.1 T
Page 87 and 88:
4.3 Data Acquisition 73 (a)The shim
Page 89 and 90:
L-GAGE 4.3 Data Acquisition 75 Usin
Page 91 and 92:
"Information is a source of learnin
Page 93 and 94:
5.1 Fatigue Behaviour of the Vari-e
Page 95 and 96:
5.1 Fatigue Behaviour of the Vari-e
Page 97 and 98:
5.2 Load-Displacement 83 (a)An area
Page 99 and 100:
5.2 Load-Displacement 85 (a)The she
Page 101 and 102:
5.2 Load-Displacement 87 Figure 5.7
Page 103 and 104:
5.2 Load-Displacement 89 QTest/10LP
Page 105 and 106:
5.2 Load-Displacement 91 Figure 5.1
Page 107 and 108:
5.3 Impending Failure Warning 93 Ba
Page 109 and 110:
5.3 Impending Failure Warning 95 (a
Page 111 and 112:
5.3 Impending Failure Warning 97 (a
Page 113 and 114:
5.3 Impending Failure Warning 99 bi
Page 115 and 116:
5.3 Impending Failure Warning 101 T
Page 117 and 118:
5.3 Impending Failure Warning 103 F
Page 119 and 120:
5.3 Impending Failure Warning 105 5
Page 121 and 122:
5.4 AE-Based Failure Criterion 107
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
5.5 Case Study 113 5.5 Case Study I
Page 129 and 130:
5.5 Case Study 115 5.5.2 AE Feature
Page 131 and 132:
5.5 Case Study 117 (a)The evolution
Page 133 and 134:
5.5 Case Study 119 (a)The evolution
Page 135 and 136:
5.5 Case Study 121 5.5.3 AE Feature
Page 137 and 138:
5.5 Case Study 123 the woven layers
Page 139 and 140:
5.5 Case Study 125 vertical asympto
Page 141 and 142:
5.5 Case Study 127 lengths are used
Page 143 and 144:
5.5 Case Study 129 ISI/Peak Amplitu
Page 145 and 146:
5.5 Case Study 131 Figure 5.32 A co
Page 147 and 148:
"All great truths are simple in nal
Page 149 and 150:
6.1 Contributions 135 combining the
Page 151 and 152:
6.2 Directions for Future Research
Page 153 and 154:
Bibliography [1] J. Degrieck and W.
Page 155 and 156:
BIBLIOGRAPHY 141 [18] R. Unnthorsso
Page 157 and 158:
BIBLIOGRAPHY 143 [41] T. D. P. S. C
Page 159 and 160:
BIBLIOGRAPHY 145 [61] C. N. Della a
Page 161 and 162:
BIBLIOGRAPHY 147 of Reinforced Plas
Page 163 and 164:
BIBLIOGRAPHY 149 [102] J. P. Dunker
Page 165 and 166:
BIBLIOGRAPHY 151 [125] H. C. Kim an
Page 167 and 168:
BIBLIOGRAPHY 153 [147] M. Iwamoto,
Page 169 and 170:
BIBLIOGRAPHY 155 [170] Newport 301
Page 171 and 172:
List of Tables 4.1 The measurement
Page 173 and 174:
List of Figures 2.1 Shows matrix cr
Page 175 and 176:
LIST OF FIGURES 161 4.10 The resolu
Page 177 and 178:
LIST OF FIGURES 163 5.25 The evolut
Page 179:
List of Algorithms 1 STFT-based det
show all

Acoustic Emission Monitoring of CFRP Laminated Composites ...

Create successful ePaper yourself

Delete template?

Save as template?