Page 189 - Reliability and Maintainability of In service Pipelines

Index

Note: Page numbers followed by “f” and “t” refer to figures and tables, respectively.
A Concrete pipes, 13 14
Acoustic detection, 67 68, 70t corrosion in, 53
Analytic hierarchy process (AHP), 97 98 deterioration of, 28 45
Artificial neural networks (ANN), 62, 96 98 rate of corrosion, 34 36
Axial stress, 25 reinforcement corrosion, 29 33
Concrete sewer pipes in the UK, structural
B reliability analysis of, 151 163
Buckling, 56 57, 56f individual failure mode assessment, 151 161
Buried pipelines problem formulation, 152 155
design of, 15 22 corrosion model, 152 153, 153t
ring stability, 18 22, 19f,21f failure probability, calculation of,
wall thickness determination, for internal 153 155
pressure and handling, 16 17, 17f limit state functions, 152
stress in, 25 28, 25t results and analysis, 155 161, 156f, 157f
sensitivity analysis, 157 161, 158f, 159f,
C 160f
Carbonation, steel pipes, 30 31 multifailure mode assessment, 161 163
Cast iron water mains in the UK, structural problem formulation, 161 163
reliability analysis of, 141 151 corrosion model, 164
problem formulation, 141 146, 142t failure probability, calculation of,
corrosion model, 145 146, 146f 164 169
failure probability, calculation of, 146 limit state functions, 161 163, 162t, 164f
limit state functions, definition of, 141 143 symbols, 163 169
strength limit state, 143, 143f, 144t results and analysis, 165 166, 165f, 166f
toughness limit state, 144 145 sensitivity analysis, 167 169, 168f, 169f
results and analysis, 146 151, 147f, 148f Conditional limit states, 82
sensitivity analysis, 148 151, 149f, 150f Corrective action, 74 75
Cathodic protection, 73, 73f Corrosion, 52 53, 53f
CCTV (closed circuit television) method, 59 61, cast iron water mains in the UK, 145 146,
60f,70t 146f
Ceramic pipes, 14 15 concrete sewer pipes in the UK, 152 153,
Chloride attack, steel pipes, 31 153t, 164
Chlorinated Polyvinyl Chloride (CPVC) pipes, 6, defined, 52 53
11 12 galvanic, 31 32
Clay pipes, 6 8, 14 15 geometry, 32
corrosion in, 53 oil and gas pipelines in USA, 124 125
deterioration of, 45 mild steel water pipes in Australia, 132 134,
Cleaning, 74 134t
Coatings, 72 Cracks, 19 20
Composite pipes, 13 14 width, 19f
Compound yield of pipe, 20, 21f Cyclic fatigue, 52
173