A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite repair performance at elevated temperatures
The paper has presented findings from a recent study evaluating the performance of a carbon-epoxy composite repair systems used to repair a corroded pipe sample subjected to internal pressure at elevated temperature conditions. The ASME PCC-2 and ISO 24817 composite repair standards were used in part to determine the required thickness of the repair. Ultimate tensile strength values near the target temperature were used to predict a more accurate repair. A comprehensive test program involving a combination of short-term coupon tests, long-term creep tests, and full-scale pressure tests were used to validate the design. The program addressed in this study is a model for the approach that should be utilized by operators seeking to use composite materials outside their conventional operating envelope. Although the focus of this particular study was on performance at elevated temperatures, other 'non-conventional' conditions that should be studied include operating with cyclic pressures, subsea applications, and combined loading conditions including pressure, tension, and bending. The concept 'when in doubt, test to failure' is the best means for ensuring that the proper design and implementation of composite repair systems for long-term use is achieved.
Composite repair performance at elevated temperatures
The paper has presented findings from a recent study evaluating the performance of a carbon-epoxy composite repair systems used to repair a corroded pipe sample subjected to internal pressure at elevated temperature conditions. The ASME PCC-2 and ISO 24817 composite repair standards were used in part to determine the required thickness of the repair. Ultimate tensile strength values near the target temperature were used to predict a more accurate repair. A comprehensive test program involving a combination of short-term coupon tests, long-term creep tests, and full-scale pressure tests were used to validate the design. The program addressed in this study is a model for the approach that should be utilized by operators seeking to use composite materials outside their conventional operating envelope. Although the focus of this particular study was on performance at elevated temperatures, other 'non-conventional' conditions that should be studied include operating with cyclic pressures, subsea applications, and combined loading conditions including pressure, tension, and bending. The concept 'when in doubt, test to failure' is the best means for ensuring that the proper design and implementation of composite repair systems for long-term use is achieved.
Composite repair performance at elevated temperatures
Souza, James (author) / Whalen, Casey (author) / Alexander, Chris (author)
2013
19 Seiten, 13 Bilder, 4 Tabellen, 12 Quellen
Conference paper
Storage medium
English
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