Experimental Response of Steel Pipelines to Close Trench Blasting

ABSTRACT: When protecting pipelines from third party activities, it is beneficial for operators to apply very conservative criteria for safe blasting. Recently, however, demands for increased capacity have required adding pipelines to existing rights-of-way, often close to or...

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26
Sep 2016

Finite Element Analysis of Composite Repairs with Full-Scale Validation Testing

ABSTRACT: Composite repair systems for pipelines are continuing to be used for increasingly difficult and complex applications which can have a high consequence of failure. In these instances, full-scale testing is typically pursued at a high-cost to the manufacturer or operator....

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26
Sep 2016

Full-Scale Elevated Temperature Testing of Composite Repairs in Bending and Compression

ABSTRACT: The increasing use of composite repair systems in critical and complex applications has brought greater scrutiny to their design and performance. This has been especially true in high temperature, immersed environment applications where ambient temperature test results...

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26
Sep 2016

Experimental Study of Elevated Temperature Composite Repair Materials to Guide Integrity Decisions

ABSTRACT: Over the past two decades, a significant amount of research has been conducted on the use of composite materials for the repair and reinforcement of pipelines. This has led to vast improvements in the quality of composite systems used for pipeline repair and has...

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26
Sep 2016

Simplified Computation of Creep Damage Propagation

ABSTRACT: The commonly accepted approach to dealing with material damage as the cause of structural failure is to treat the most highly distressed location in the structure as an equivalent simple test and to define failure of the structure as a whole as being failure at that...

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18
Jul 2016

Fitness for Service Assessment of Piping Subject to Random Vibration

ABSTRACT: A methodology is presented for Level 1 and 2 Fitness-for-Service (FFS) assessments of process and power piping subject to random vibration loading. The intent is to provide a basis for random vibration assessment based on concepts from spectral fatigue, which is...

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17
Jul 2016

Cracking the Code: How Measured Data Coupled with Engineering Analysis can Increase Asset Utilization

ABSTRACT: To date, the oil and gas industry has struggled to employ structural monitoring data in meaningful way. The missing link has been the ability to extract and interpret useful information from the data and apply it in a manner that has a significant impact on productivity...

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01
Apr 2016

A Highly Corrosion Resistant Titanium Alloy For Use In the Chemical Process Industry

ABSTRACT: A new titanium alloy was developed for the chemical process industry (CPI).  This alloy is targeted for use in very aggressive environments that have traditionally utilized palladium stabilized titanium grades, or high end nickel alloys. The corrosion resistance of the...

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16
Aug 2015

Electrochemical Corrosion Properties of TIMETAL®54M

ABSTRACT: A new titanium alloy, TIMETAL® 54M (Ti-5Al-4V-0.75Mo-0.5Fe) has been developed to replace the widely used Ti-6Al-4V alloy where extensive machining is required. Ti54M has better machinability than Ti64 with equivalent mechanical properties. In this study electrochemical...

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16
Aug 2015
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