Material Specific Load Combination Factors for Option 2 FAD Curves
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Cleveland State University / OhioLINK
2013
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=csu1386078154 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-csu13860781542021-08-03T06:20:51Z Material Specific Load Combination Factors for Option 2 FAD Curves Schaser, Matt Saxon Engineering Mechanical Engineering Materials Science Metallurgy Nuclear Engineering Petroleum Engineering Failure Assessment Diagram FAD Load Combination Factor FFS Fitness-for-Service Fitness for Service Psi Factor Phi Factor API-579 API-579-1 ASME FFS-1 Prager Stress Strain Model Prager Stress-Strain Model Crack-like Flaw The use of failure assessment diagrams (FAD) for evaluating the integrity of components containing crack-like flaws has developed a well-defined methodology over the years that includes a correction factor to account for combined loading effects that are a result of primary and secondary stresses. The load combination factor, Ψ, is based on the Option 1 FAD currently in use in the Central Electricity Generating Board’s (CEGB) report No. R/H/R6 (R6) and the API-579-1/ASME FFS-1 fitness-for-service standard. The Ψ factors for the Option 2 FAD based on ASME B&PV Code Section VIII, Division 2 material stress-strain curves are developed and tabulated here for a wide range materials used for the construction of pressure vessels. The Ψ factors based on the Option 1 FAD are recalculated here and compared to current published data. The approach utilizing Option 1 FAD methods is evaluated here with regard to its conservatism and applicability to material models other than the Ramberg-Osgood model. In addition, a sensitivity analysis is performed to estimate Ψ factor errors due to uncertainty in material property parameters. A critical review of the tabulated data in API-579 is performed and errors are identified along with suggested solutions to correct the data. 2013-12-12 English text Cleveland State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=csu1386078154 http://rave.ohiolink.edu/etdc/view?acc_num=csu1386078154 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
| collection |
NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Engineering Mechanical Engineering Materials Science Metallurgy Nuclear Engineering Petroleum Engineering Failure Assessment Diagram FAD Load Combination Factor FFS Fitness-for-Service Fitness for Service Psi Factor Phi Factor API-579 API-579-1 ASME FFS-1 Prager Stress Strain Model Prager Stress-Strain Model Crack-like Flaw |
| spellingShingle |
Engineering Mechanical Engineering Materials Science Metallurgy Nuclear Engineering Petroleum Engineering Failure Assessment Diagram FAD Load Combination Factor FFS Fitness-for-Service Fitness for Service Psi Factor Phi Factor API-579 API-579-1 ASME FFS-1 Prager Stress Strain Model Prager Stress-Strain Model Crack-like Flaw Schaser, Matt Saxon Material Specific Load Combination Factors for Option 2 FAD Curves |
| author |
Schaser, Matt Saxon |
| author_facet |
Schaser, Matt Saxon |
| author_sort |
Schaser, Matt Saxon |
| title |
Material Specific Load Combination Factors for Option 2 FAD Curves |
| title_short |
Material Specific Load Combination Factors for Option 2 FAD Curves |
| title_full |
Material Specific Load Combination Factors for Option 2 FAD Curves |
| title_fullStr |
Material Specific Load Combination Factors for Option 2 FAD Curves |
| title_full_unstemmed |
Material Specific Load Combination Factors for Option 2 FAD Curves |
| title_sort |
material specific load combination factors for option 2 fad curves |
| publisher |
Cleveland State University / OhioLINK |
| publishDate |
2013 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=csu1386078154 |
| work_keys_str_mv |
AT schasermattsaxon materialspecificloadcombinationfactorsforoption2fadcurves |
| _version_ |
1719434917282054144 |