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Inaudi, D. and Glisic, B. (2005), "Development of distributed strain and temperature sensing cables", 17th International Conference on Optical Fibre Sensors, Bruges, Belgium. Ito, T., Suganuma, T. and Wakashima, K. (1999), "Glass fiber polypropylene composite laminates with negative coefficients of thermal expansion", Journal of Materials Science, vol. 18, pp. 1363-1365. Jaske, C. E., Vieth, P. H. and Beavers, J. A. (2002), "Corrosion 2002", April 7 - 11, Denver, Co. Jenson, F., Iakovleva, E. and Reboud, C., ( 2009), Modelling II: Evaluation of POD Curves Based on Simulation Results, European Commission Joint Research Centre. Kaminski, C. (2005), Stress Analysis and Pressure Vessels, University of Cambridge, UK. Kaminskii, A. A. and Bastun, V. N. (1997), "Methods of Determining the Stress-Strain State and Fracture Toughness of Gas and Oil Line Pipe", International Applied Mechanics, vol. 33, no. 8, pp. 595-618. Khan, A. S. and Hsiao, C. (1984), "Strain field in straight cylindrical shells due to applied forces on an attached shell", Journal of Strain Analysis, vol. 19, no. 4. Kharionovski, V.V. ( 2006), "Express-method helps evaluate remaining gas pipeline life", Gas Industry of Russia,1 st Quarter 2011 Iss. Khazhinskii, G. M. (2005), "Approximate evaluation of stresses in dents of cylindrical shells", Chemical and Petroleum Engineering, vol. 41, no. 3-4, pp. 122-125. Kim, Y. J. and Son, B. G. (2004), "Finite element based stress concentration factors for pipes with local wall thinning", International Journal of Pressure Vessels and Piping - Science Direct, [Online], vol. 81, November 2009- pp. 897-906 available at: www.elsevier.com/locate/ijpvp. Kim, Y. J., Song, T. K., Kim, J. S. and Jin, T. E. (2007), "Limit Loads and Approximate J Extimates for Axial Through-Wall Cracked Pipe Bends", Int J Fract - Springer, vol. DOI 10.1007/s10704, no. 007-9166-2, pp. 249-264. Knoxville, W. ( 2009), Finite Element Analysis, Then and Now, Amazines.com, CA, USA. Kosai, M., Shimamoto, A., Yu, C. T., Kobayashi, A. S. and Tan, P. W. (1999), "Axial Crack Propagation and Arrest in a Pressurized Cylinder: An Experimental-numerical Analysis", Full, vol. 39, no. 4, pp. 256-264. 208
Kotrechko, S. A., Krasovskii, A. Y., Meshkov, Y. Y., Mettus, G. S., Polushkin, Y. A. and Torop, V. M. (2002), "Influence of Long Term Operation on the Toughness of 17GS Pipeline Steel", Strength of Materials, vol. 34, no. 6, pp. 541-547. Kueh, A. and Pellegrino, S. (2007), "Triaxial weave fabric composites", European Space Energy Contractor Report. Kueh, A., Soykasap, O. and Pellegrino, S. (2005), "Thermo mechanical behaviour of single ply Triaxial Weave carbon fibre reinforced plastic", NASA Astrophysics Data System (ed.), in: European Conference on Spacecraft Structures, Materials & Mechanical Testing 2005, 10-12 May, Netherlands. Kulkarni, S. and Alexander, C. (2008), "Evaluating the effects of wrinkle bends on pipeline integrity", Proceedings of IPC2008 7th International Pipeline Conference, September 29 – October 3, 2008, Alberta, Canada. Lebedev, A. A., Muzyka, N. R., Volchek, N. L. and Nedoseka, S. A. (2003), "Monitoring of Current State of Pipe Metal in Active Gas Pipelines - Experimental Method and Results", Strength of Materials, vol. 35, no. 2, pp. 122-127. Lee, S., Munro, M. and Scott, R. F. (1990), "Evaluation of three in-plane shear test methods for advanced composite materials", Composite, vol. 21, no. 6, pp. 495-502. Lee, O. S. and Pyun, J. S. (2002), "Failure Probability of Corrosion Pipeline with Varying Boundary Condition", KSME International Journal, vol. 16, no. 7, pp. 889- 895. Lesmana, D.S. (2010), High pressure gas transmission pipeline repair using Clock Spring composite sleeve in Indonesia, Pipeliner, July Iss. Linton, V. (September 2008), Stress Corrosion Cracking in Gas Transmission Pipelines; Understanding Crack Extension by Fatigue, 13, University of Adelaide, Australia. LIOS Technology Inc (2010), Distributed Temperature Sensing System, available at: www.lios-tech.com (accessed February 2010). Littell, J. (2008), The experimental and analytical characterization of the macromechanical response for triaxial braided composite materials, The University of Akron, Oh. US. Lloyds Register (2011), Asset Management and Safety Assurance for the UK Energy Industry, available at: www.llyodsregister.co.uk (accessed January 2011). Longest, P. W. and Vinchurkar, S. (2007), "Effects of mesh style and grid convergence on particle deposition in bifurcating airway models with comparisons to experimental data", Medical, Engineering and Physics, vol. 29, pp. 350-366. 209
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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
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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
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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
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One of the contributions of this st
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Table 3.4: Convergence tests on var
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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
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However, the axial load transfer is
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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 183 and 184: Mircostrain 300 250 200 150 100 50
Page 185 and 186: Mircostrain 600 500 400 300 200 100
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 and 224: Bucinell, R. B. (2001), Calculating
Page 225 and 226: Proceedings of OMAE'01 20th Interna
Page 227: Greenwood, R. (2002), UKOPA Pipelin
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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