Journal of High Pressure Institute of Japan
Online ISSN : 1347-9598
Print ISSN : 0387-0154
ISSN-L : 0387-0154
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Volume 52, Issue 4
Displaying 1-4 of 4 articles from this issue
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Original Paper
  • Buckling assessment for pressure equipment with metal loss
    (in the case of cylindrical vessel subjected to bending moment)
    Masayuki OZAKI, Atsushi YAMAGUCHI, Takuyo KAIDA
    2014 Volume 52 Issue 4 Pages 172-179
    Published: July 25, 2014
    Released on J-STAGE: August 20, 2014
    DOIhttps://doi.org/10.11181/hpi.52.172
    JOURNAL FREE ACCESS
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    Fitness-For-Service (FFS) assessment of pressure equipment in petroleum and petrochemical plant can be used to demonstrate the structural integrity of pressure equipment that may contain a flaw or damage. If the equipment includes a damaged component with a compressive stress field under applied design loads, assessment for protection against collapse from buckling is needed. There has been, however, little study on buckling assessment for general tower with metal loss subjected to seismic loadings in petroleum and petrochemical plant.
    In this study, relationship between metal loss shape and buckling moment was investigated for general tower in the plant using finite element analysis (FEA) . In addition, the results of FFS assessment using API 579-1⁄ASME FFS-1 (API⁄ASME FFS) were validated by FEA. The results of validation indicated that API⁄ASME FFS assessment provides conservative results in the case of localized metal loss. Finally, a more accurate assessment procedure for localized metal loss was proposed.
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  • Research on Technological Assessment for Ageing Management of Reprocessing Plant
    -Assessment of stainless steel heating component-
    Yasuaki HASHIKURA, Yasuo NOJIMA, Fumiyoshi UENO, Gunzo UCHIYAMA
    2014 Volume 52 Issue 4 Pages 180-187
    Published: July 25, 2014
    Released on J-STAGE: August 20, 2014
    DOIhttps://doi.org/10.11181/hpi.52.180
    JOURNAL FREE ACCESS
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    The purpose of the research program is to provide review manuals and technical database for Ageing Management Technical Evaluation Reports performed by licensees of spent fuel reprocessing plants in accordance with ordinance on Periodic Safety Review.
    Research programs have been conducted based on a contract with well-equipped organization since F. Y. 2006. One experimental subjects on ageing phenomena listed below in this program for the technological assessment of TOKAI plant, which have experienced many corrosion problems. TOKAI plant is the pilot plant for reprocessing service commissioned in Dec. 1980 and shifted to R&D in Apr. 2006.
    -Corrosion of stainless steel components in boiling nitric acid solutions at heating portions-
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  • Research on Technological Assessment for Ageing Management of Reprocessing Plant
    -Assessment of titanium alloy heating component-
    Yasuaki HASHIKURA, Yasuo NOJIMA, Masayuki TAKEUCHI, Yuichi SANO, Gunzo ...
    2014 Volume 52 Issue 4 Pages 188-196
    Published: July 25, 2014
    Released on J-STAGE: August 20, 2014
    DOIhttps://doi.org/10.11181/hpi.52.188
    JOURNAL FREE ACCESS
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    The purpose of the research program is to provide review manuals and technical database for Ageing Management Technical Evaluation Reports performed by licensees of spent fuel reprocessing plants in accordance with ordinance on Periodic Safety Review.
    Research programs have been conducted based on a contract with well-equipped organization since F. Y. 2006. One experimental subjects on ageing phenomena listed below in this program for the technological assessment of TOKAI plant, which have experienced many corrosion problems. TOKAI plant is the pilot plant for reprocessing service commissioned in Dec. 1980 and shifted to R&D in Apr. 2006.
    -Corrosion of titanium alloy made components in nitric acid condensates at condensate portions-
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  • Relation between various ductile to brittle transition temperatures
    Hiroshi MIMURA
    2014 Volume 52 Issue 4 Pages 197-204
    Published: July 25, 2014
    Released on J-STAGE: August 20, 2014
    DOIhttps://doi.org/10.11181/hpi.52.197
    JOURNAL FREE ACCESS
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    Several tens of definitions for the ductile to brittle transition temperature (DBTT) have been proposed so far, corresponding to various test methods on toughness of steels. The correlations between those DBTTs estimated empirically are not satisfactory. The present paper points out an important role of carbon content through “strain toughening effect” in the correlations between DBTTs, especially between fracture toughness and Charpy impact toughness.
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