Technical Publications

Rational Stress Limits and Load Factors for Finite Element Analyses in Pipeline Applications Part II – Limit State Load Factor Development

Lin, B., Biel, R.C.

ABSTRACT: In this paper, a load factor for use in a limit-load analysis of a pipeline and its      components is...
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Elevated Temperature Primary Load Design Method Using Pseudo Elastic-Perfectly Plastic Model

Carter, P., Sham, T.L., Jetter, R.I.

ABSTRACT: A new primary load design method for elevated temperature service has been developed. Codification of the procedure in an ASME Boiler and...
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One Power Plant’s Experience in Setting Up, Performing and Acting on a Pipe Hanger Surveillance Program

Kimball, L., Mutama, K.

 ABSTRACT: The ASME B31.1 Power Piping Code, Chapter VII, has stated that Operating Companies shall establish a program to assess and document...
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Using Singularities to Detect and Describe a Notch in a Pipe

Stoyko, D.K., Popplewell, N., Shah, A.H.

ABSTRACT: A hybrid Semi-Analytical Finite Element (SAFE) and standard finite element procedure is adopted to locally detect and characterize an...
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Application of Elastic-Perfectly Plastic Analysis to Assessment of Creep Strain

Carter, P., Sham, T.L., Jetter, R.I.

ABSTRACT: A cyclic elastic-perfectly plastic analysis method is proposed which provides a conservative estimate to cyclic creep strain accumulation...
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Application of Shakedown Analysis to Evaluation of Creep-Fatigue Limits

Carter, P., Sham, T.L., Jetter, R.I.

ABSTRACT: Shakedown analysis may be used to provide a conservative estimate of local rupture and hence cyclic creep damage for use in a creep-fatigue...
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Design of an Optimized Composite Repair System for Offshore Risers Using Integrated Analysis and Testing Techniques

Alexander, C.

ABSTRACT: Composite systems are a generally-accepted method for repairing corroded and mechanically-damaged onshore pipelines. The pipeline industry...
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Application of a Grouted Sleeve to Remediate a Damaged Subsea Pipeline

Vagata, A., Bath, B., Alexander, C., Aalders, A., Seal, D.

ABSTRACT: This paper describes the method and equipment developed to allow ROV installation of a grout-filled reinforcement sleeve on a damaged...
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Spectral Formulations for Vortex Induced Vibration Modal Decomposition and Reconstruction

McNeill, S.

ABSTRACT: Modal Decomposition and Reconstruction (MDR) of marine riser Vortex Induced Vibration (VIV) is a technique where vibration is measured...
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Effects of Thermal Cycling on Offshore Pipeline Repair Tool Seal Systems

Ayers, R.R., Miller, J.E., Gage, E., Hebert, J., Wilson, I.

ABSTRACT This paper summarizes results from both coupon testing and full-scale testing directed at developing sealing systems to retrofit in...
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Considerations for Application of SOBI to Order Tracking

McNeill, S.

Abstract: Current methods of order tracking, such as synchronous resampling, Gabor filtering, and Vold-Kalman filtering have undesirable traits....
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High Energy Piping Assessment Methods and Case Study

Carter, P.

ABSTRACT: A comparison between analysis for piping design and analysis for piping assessment is given. Assessment requires consideration of high...
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