Page 191 - Reliability and Maintainability of In service Pipelines

Index 175

Maximum-likelihood estimation (MLE), P
110 112, 111f Paris/Manual Uniform Pressure Distribution, 23,
Measurement uncertainty, 83 24f
Metallic pipelines, 8 11 Physical uncertainty, 83
corrosion in, 53 Pipeline Assessment and Certification Program
ferrous pipes, 8 11 (PACP), 61
galvanized iron pipes, Pitting corrosion, 32 33, 32f
9 10 Plastic coating, 72
non-ferrous pipes, 8 Plasticized PVC pipes, 11
seamless pipes, 10 11 Plastic pipes, 11 13
steel pipes, 10 corrosion in, 54
Method of moments, 112 deterioration of, 42 43
Microbial induced corrosion Polyvinyl Chloride (PVC) pipes, 6
(MIC), 29, 33 36, 35f Propylene random copolymer (PRP) pipes, 12
Mild steel water pipes in
Australia, structural reliability analysis R
of, 130 140 Radiographic testing (RT), 67, 70t
failure modes, 132t Regions of interest (ROI), 61
problem formulation, 131 135 Reinforcement corrosion
corrosion model, 132 134, 134t concrete pipes, 29 33
failure probability, mechanism of, 30
calculation of, 134 135, 135f Reliability analysis of pipelines, 4 5
limit state functions, 131 132, 133t Residual strength
results and analysis, of oil and gas pipelines, 124 126
135 140, 136f, 136f, 136f, 137f, 137f stochastic model for, 125 126
sensitivity analysis, 138 140 Residual stress, 41
Model uncertainty, 83 Ring compression stress, 21
Monte Carlo simulation method, 93, 95, Ring deflection, 55 56
114 116 Ring deflection ratio, 26 27
Ring stability of pipes, 18 22, 19f,21f
N Ring stiffness of pipes, 18 19
National Association of Corrosion Engineers, 73 Rotating optical geometry sensor (ROGS), 63
NDT methods, 67
Non-ferrous pipes, 8 S
Nonmetallic pipelines, 11 15 Scope of pipeline reliability analysis, 4 5
ceramic pipes, 14 15 Seamless pipes, 10 11
composite pipes, 13 14 deterioration of, 44
plastic pipes, 11 13 Second-Order Reliability Methods (SORM), 84,
thermoplastic pipes, 12 13 95
Sensitivity analysis, 4 5, 88 90
O cast iron water mains in the UK, 148 151,
Oil and gas pipelines in USA, structural 149f, 150f
reliability analysis of, 120 130, 122t concrete sewer pipes in the UK, 157 161,
problem formulation, 121 126 158f, 159f, 160f, 167 169, 168f, 169f
residual strength, stochastic model for, mild steel water pipes in Australia, 138 140
125 126 of oil and gas pipelines, 128 130, 129f, 130f
residual strength and corrosion, 124 125 omission sensitivity factor, 89 90
results and analysis, relative contribution, 88 89
126 130, 126f, 127f, 128f sensitivity ratio, 89
sensitivity analysis, 128 130, 129f, 130f Sensitivity ratio (SR), 89
Olander/Modified Olander Radial Pressure Serviceability limit states, 15 16, 82
Distribution, 23, 24f Service life, of building component or material, 4
Omission sensitivity factor, 89 90 Service life prediction of pipes, 90