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CorroDefense LLC (2005), The AquaWrap Solution for Civil Structure or Pipeline Reinforcement & Protection, available at: http://www.corrodefense.com/ (accessed April 2009). County of Santa Barbara (2009), North County Oil and Gas Facility Sitting and Planning Analysis - Existing Infrastructure and Production Setting, available at: http://www.countyofsb.org (accessed April 2009). Creager, M. and Paris, P. C. (1967), "Elastic field equations for blunt cracks with reference to stress corrosion cracking", International Journal of Fracture Mechanics, vol. 3, no. 4, pp. 247-252. Culshaw, B. (1984), "Fibre Optic Sensing Technique", in Sharpe, R. S. (ed.) Research Techniques in Non Destructive Testing Volume 7, Academic Press, London. Da Costa Mattos, H. S., Reis. J.M.L., Sampaio,, R. F. and Perrut,, V. A. (2009), "An alternative methodology to repair localized corrosion damage in metallic pipelines with epoxy resins", Materials and Design, vol. 30, pp. 3581-3591. Daniel, I. M. and Ishai, O. (2006), Engineering Mechanics of Composite Materials, Second Edition, Oxford University Press, New York. De Carvalho, E. A. (2005), "Stress concentration factors for an internally pressurized circular vessel containing a radial U-notch", International Journal of Pressure Vessels and Piping -Science Direct, vol. 82, pp. 517-521. De Leeuw, B. and Brennan, F. P. (2009), "Structural integrity monitoring index (SIMdex): a methodology for assessing structural health monitoring technologies", J.AerospaceEngineering, vol. 223, no. 392, pp. 515-523. Denso North America, Inc. (2009), Leaders in Corrosion Prevention and Sealing Technology, available at: http://www.densona.com/DensoPetrolatumTapes.htm (accessed April 2009). Department of Resources (2010), Northern Territory Oil and Gas Pipelines, available at: http://www.nt.gov.au/d/Minerals_Energy/ (accessed April 2010). DeVries, N. A., Shivanna, K. H., Ta depalli, S. C., Magnotta, S. V. and Grosland, N. M. (2009), "IA-A FEMesh: Anatomic FE Models - A Check of Mesh Accuracy and Validity", The Iowa Orthopaedic Journal, vol. 29, pp. 48-54. Dinovitzer, A., Lazor, R., Caroll, L. B. and Zhou, J. (2002), "Geometric Dent Characterization", Proceedings of IPC 2002: International Pipeline Conference, 29 September - 3 October 2002, Alberta Canada. Dover, W. D., Brennan, F. P. and De Leeuw, B. (2001), "ACSM Stressprobe: A new Non Contacting Stress Measurement Technique for the Offshore Industry", 204
Proceedings of OMAE'01 20th International Conference on Offshore Mechanics and Arctic Engineering, 3 - 8 June, 2001, Rio De Janeiro, Brazil. Ecke, W. (2008), Application of Fibre Bragg Grating Sensors, OFS-19 Tutorial, Institute of Photonic Technology (IPHT) Jena, Germany. Efunda, I. (2011), Efunda: The ultimate online reference for engineers, available at: http://www.efunda.com/formulae/solid_mechanics/plates/theory.cfm. Elvin, N. and Leung, C. (1997), "Feasibility of Delamination Detection with Embedded Optical Fibres", Regelbrugge, M. E. (ed.), in: Smart Structures and Integrated Systems, Proceedings of SPIE, Vol. 3041, 1997, p. 627. Emslie, C. and Gibson, K. (2010), Risk Based Inspection in Asset Integrity Management, Technical Article. Enduro Pipeline Services (2009), Magnetic Flux Leakage and Multiple Data Set Inline Inspection, available at: http://www.enduropls.com/articles.jsp (accessed April 2009). Energy Workforce Sdn Bhd (2011), Alternating Current Field Measurement, available at: http://www.energyworkforce.net (accessed April 2011). ERSG Ltd. (2009), Pipeline Risk Assessment. ETD Ltd. (2003), Guidelines for Inspection, Monitoring, Repair and Maintenance of HRSGs - Based on Review of Worldwide Plant and Research Experience. Farrar, C. R. and Worden, K. (2007), "An introduction to structural health monitoring", Philosophical transactions.Series A, Mathematical, physical, and engineering sciences, vol. 365, no. 1851, pp. 303-315. Fixter, L. and Williamson, C. (2006), State of the Art Review - Structural Health Monitoring, Qinetic/S&DU/T&P/E&M/TR0601122, Qinetic and SMART.mat, http://amf.globalwatchonline.com. Foedinger, R., Rea, D., Sirkis, J., Troll, J., Grande, R. and Vandiver, T. L. (2000), Structural Health Monitoring and Impact Damage Detection for Filament Wound, Stanford University, Palo Alto, California. Forsyth, D. S. (1998), "An Evaluation of Probability of Detection Statistics", Airframe Inspection Reliability under Field / Depot Conditions, 13 -14 May 1998, Brussels, Belgium, p. 1. Fouladi, E., Fayazbakhsh, K. and Abedian, A. (2010), "Patch materials selection for ageing metallic aircraft structures using digital quantitative materials selection methods", 27 th International Congress of the Aeronautical Sciences, ICAS 2010, www.icas-proceedings.net. 205
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CRANFIELD UNIVERSITY MAHADI ABD MUR
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ABSTRACT One of the most common pro
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TABLE OF CONTENTS ABSTRACT ........
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3.7.1 Introduction ................
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5.6 Summary and Conclusions .......
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Figure 3.1: Schematic diagram of th
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Figure 5.4: The average temperature
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NOMENCLATURES ACFM Alternating Curr
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1 INTRODUCTION One of the most comm
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1.1 Objectives Knowing this backgro
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The methodology of this integrated
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Chapter 6 contains the summary and
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period of the major part of the exi
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Figure 2.2: Reported interest in de
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Figure 2.4: Dent damage caused by v
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presented current practices, recent
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Energy Workforce Sdn Bhd (2011) cla
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available provides real time detect
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2.3.3 Reliability Analysis of Infor
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Figure 2.9: Pipeline failure probab
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2.3.3.1 NDT Reliability and POD cur
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increase in the yield limit of stee
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the SCC assessment in their integri
Page 51 and 52:
Manufacturers such as Walkers Techn
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Company L.P, 2005); Aquawrap ® pro
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monitoring, inspection, and damage
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2.6.2 Aims of Structural Health Mon
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Figure 2.16: Application fields and
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egistered by the piezoelectric sens
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discretization error. Round-off err
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notches and Neuber‘s is better fo
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maximum local stress at discontinui
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De Carvalho (2005) concludes that t
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accurate simulation of loading espe
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Based on the above facts, the opera
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3 FINITE ELEMENT ANALYSIS (FEA) IN
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Figure 3.2: Schematic diagram of th
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In this modelling work (i.e. compos
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This partition toolset also helps u
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Figure 3.6: Mesh control using Swee
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Figure 3.7: Schematic representatio
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discretization. Therefore, in this
Page 89 and 90:
According to Staten et al. (2010b),
Page 91 and 92:
3.5 The influence of pressure on th
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each pressure value remains constan
Page 95 and 96:
Axial Stress, σa (S22) was referre
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Figure 3.14 shows a graph of analyt
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the notch defect is found to be in
Page 101 and 102:
One of the contributions of this st
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Table 3.4: Convergence tests on var
Page 105 and 106:
Figures 3.16 and 3.17 show that the
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Figure 3.20 shows that as the relat
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3.7.4 Concluding Remarks A biaxial
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yarns change and lateral contact be
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For predicting E2 and Gl2, a number
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Where: Ar = weight of one sheet of
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Where; The Stiffness matrix is trad
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simulations for the hoop strain at
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Figure 3.24: Finding the hoop stres
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Table 3.8: The effect of repair len
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four up to 18 layers. In this study
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hoop and axial stress concentration
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Table 3.11: Predicted Elastic Const
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Table 3.13: Axial Stress v/s L/W ra
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Hoop Stress (MPa) Figure 3.3: Hoop
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However, Frost (2008) and Alexander
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Table 3.17: Ratio of Axial Stress N
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axial load (e.g. buried pipelines t
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3.10 Numerical Strain Analysis of C
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Figure 3.36 shows the contours befo
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Stress Concentration Factor 2 1.8 1
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In fact, for Notch 40 with 18 plies
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this second approach (i.e. the expe
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4.2.2 Strain Gauge Selection and Cr
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Finally, a method used to calculate
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Where, and are the maximum and mini
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should be between 20 and 28 bar and
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welded weld neck flange at both end
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Figure 4.7: Sensor and heating elem
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Figure 4.9: A summary of data acqui
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One of the objectives of doing this
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Figure 4.14: A schematic diagram of
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Table 4.1: Strain gauge readings at
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microstrain 3.00E-04 2.50E-04 2.00E
Page 173 and 174: However, the axial load transfer is
Page 175 and 176: Mircostrain 500 450 400 350 300 250
Page 177 and 178: Since the defect is not a flat notc
Page 179 and 180: Again, the epoxy resin plays a sign
Page 181 and 182: Table 4.4: Study at the defect area
Page 187 and 188: 14.25% in hoop strain and 23.5% in
Page 189 and 190: consideration for the selection of
Page 191 and 192: 5.4 Methodology of Thermal Expansio
Page 193 and 194: Figure 5.1: Some preventive measure
Page 195 and 196: 5.4.1 The Fundamentals of the Therm
Page 197 and 198: 5.5 Analysis of Results 5.5.1 The t
Page 199 and 200: Thermal Output (strain ) 0.0002 0.0
Page 201 and 202: (Strain ,ε) Figure 5.12: Coefficie
Page 203 and 204: (Strain ,ε) 0.0002 0.00018 0.00016
Page 205 and 206: Table 5.1: The strain readings afte
Page 207 and 208: maximum shear strain increase as th
Page 209 and 210: The above results show that shear s
Page 211 and 212: shear strains becomes more stable a
Page 213 and 214: for future safe design and operatio
Page 215 and 216: has been fully cured. Poor surface
Page 217 and 218: 6.3 Primary PhD Achievements The ea
Page 219 and 220: In Chapter 5, the CTE was determine
Page 221 and 222: ASM International (2002), "Thermal
Page 223: Bucinell, R. B. (2001), Calculating
Page 227 and 228: Greenwood, R. (2002), UKOPA Pipelin
Page 229 and 230: Kotrechko, S. A., Krasovskii, A. Y.
Page 231 and 232: Mousavi, S. E., Xiao, H. and Sukuma
Page 233 and 234: Raju, I. S. and Newman, J. C. (1986
Page 235 and 236: Tennyson, R. C. and Mufti, A. A. (2
Page 237 and 238: Xue, L., Widera, G. E. O. and Sang,
Page 239 and 240: General Technical Specifications: T
Page 241 and 242: Photos of the Design and Build of t
Page 243 and 244: Composite Installation Process usin
Page 245 and 246: APPENDIX 3 - STRAIN GAUGE INSTALLAT
Page 247 and 248: Figure 7: Mylar tape was stuck onto
Page 249 and 250: Figure 19: Repeating the above proc
Page 251: 2) Electrical Insulation Test Resul
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