High temperature life prediction of a welded IN718 component
Life predictions from a case study of a welded feature in a generic spoke structure, determined using three-dimensional quasi-static elastic-plastic and creep finite element analyses, are demonstrated. The complete structure consists of multiple Inconel 718 (IN718) TIG-welded features; the welds exh...
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| Veröffentlicht in: | Journal of physics. Conference series 2009-08, Vol.181 (1), p.012027 |
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| creator | Tanner, D W J Becker, A A Hyde, T H |
| description | Life predictions from a case study of a welded feature in a generic spoke structure, determined using three-dimensional quasi-static elastic-plastic and creep finite element analyses, are demonstrated. The complete structure consists of multiple Inconel 718 (IN718) TIG-welded features; the welds exhibit noticeably depleted mechanical properties so a multimaterial analysis is necessary for accurate predictions. The effect the welds have on the life is investigated for both constant (creep) and cyclic loading (creep-fatigue) conditions at 620°C. Creep damage and Smith, Watson and Topper (SWT) strain parameter lifing methods are used, based upon material properties determined using uniaxial test data. The lower fatigue properties of the welded IN718 material at high temperature had a negative effect on the fatigue life of the structure. The effect of the weld on the life under constant loading at high temperature was found to be more difficult to evaluate due to significant stress relaxation. |
| doi_str_mv | 10.1088/1742-6596/181/1/012028 |
| format | Article |
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The complete structure consists of multiple Inconel 718 (IN718) TIG-welded features; the welds exhibit noticeably depleted mechanical properties so a multimaterial analysis is necessary for accurate predictions. The effect the welds have on the life is investigated for both constant (creep) and cyclic loading (creep-fatigue) conditions at 620°C. Creep damage and Smith, Watson and Topper (SWT) strain parameter lifing methods are used, based upon material properties determined using uniaxial test data. The lower fatigue properties of the welded IN718 material at high temperature had a negative effect on the fatigue life of the structure. The effect of the weld on the life under constant loading at high temperature was found to be more difficult to evaluate due to significant stress relaxation.</description><identifier>ISSN: 1742-6596</identifier><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/181/1/012028</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Creep fatigue ; Cyclic loads ; Fatigue life ; Fatigue tests ; Finite element method ; Gas tungsten arc welding ; High temperature ; Life prediction ; Material properties ; Mechanical properties ; Nickel base alloys ; Physics ; Stress relaxation ; Superalloys ; Uniaxial tests</subject><ispartof>Journal of physics. 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Conference series</title><description>Life predictions from a case study of a welded feature in a generic spoke structure, determined using three-dimensional quasi-static elastic-plastic and creep finite element analyses, are demonstrated. The complete structure consists of multiple Inconel 718 (IN718) TIG-welded features; the welds exhibit noticeably depleted mechanical properties so a multimaterial analysis is necessary for accurate predictions. The effect the welds have on the life is investigated for both constant (creep) and cyclic loading (creep-fatigue) conditions at 620°C. Creep damage and Smith, Watson and Topper (SWT) strain parameter lifing methods are used, based upon material properties determined using uniaxial test data. The lower fatigue properties of the welded IN718 material at high temperature had a negative effect on the fatigue life of the structure. The effect of the weld on the life under constant loading at high temperature was found to be more difficult to evaluate due to significant stress relaxation.</description><subject>Creep fatigue</subject><subject>Cyclic loads</subject><subject>Fatigue life</subject><subject>Fatigue tests</subject><subject>Finite element method</subject><subject>Gas tungsten arc welding</subject><subject>High temperature</subject><subject>Life prediction</subject><subject>Material properties</subject><subject>Mechanical properties</subject><subject>Nickel base alloys</subject><subject>Physics</subject><subject>Stress relaxation</subject><subject>Superalloys</subject><subject>Uniaxial tests</subject><issn>1742-6596</issn><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kMFKw0AQhhdRsFZfQRY8x8wkm90NeJGitlD00vuSbGY1pc3GTYL49qZE1ENxLjMw3z8DH2PXCLcIWseoRBLJLJcxaowxBkwg0Sds9rM4_TOfs4uu2wKkY6kZu1vWr2-8p31LoeiHQHxXO-JtoKq2fe0b7h0v-AftKqr46lmh5tbvW99Q01-yM1fsOrr67nO2eXzYLJbR-uVptbhfR1Yg9pFKlcAMwBIkAEWZ2fEWlZSTJqVzrW0OWpVZ6YhkgVJIFA5zRaXLIZfpnN1MZ9vg3wfqerP1Q2jGjybJNKRCJEKMlJwoG3zXBXKmDfW-CJ8GwRxEmYMDc3BgRlEGzSRqDEZTsPbtb-Yoa9rKjTwe4f__8QUhUHXd</recordid><startdate>20090801</startdate><enddate>20090801</enddate><creator>Tanner, D W J</creator><creator>Becker, A A</creator><creator>Hyde, T H</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20090801</creationdate><title>High temperature life prediction of a welded IN718 component</title><author>Tanner, D W J ; Becker, A A ; Hyde, T H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c411t-73741500ce0200ab5cdedebe9e8e78988c9087b5bfee6a164614f197ebf90963</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Creep fatigue</topic><topic>Cyclic loads</topic><topic>Fatigue life</topic><topic>Fatigue tests</topic><topic>Finite element method</topic><topic>Gas tungsten arc welding</topic><topic>High temperature</topic><topic>Life prediction</topic><topic>Material properties</topic><topic>Mechanical properties</topic><topic>Nickel base alloys</topic><topic>Physics</topic><topic>Stress relaxation</topic><topic>Superalloys</topic><topic>Uniaxial tests</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tanner, D W J</creatorcontrib><creatorcontrib>Becker, A A</creatorcontrib><creatorcontrib>Hyde, T H</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Tanner, D W J</au><au>Becker, A A</au><au>Hyde, T H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High temperature life prediction of a welded IN718 component</atitle><jtitle>Journal of physics. Conference series</jtitle><date>2009-08-01</date><risdate>2009</risdate><volume>181</volume><issue>1</issue><spage>012027</spage><pages>012027-</pages><issn>1742-6596</issn><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>Life predictions from a case study of a welded feature in a generic spoke structure, determined using three-dimensional quasi-static elastic-plastic and creep finite element analyses, are demonstrated. The complete structure consists of multiple Inconel 718 (IN718) TIG-welded features; the welds exhibit noticeably depleted mechanical properties so a multimaterial analysis is necessary for accurate predictions. The effect the welds have on the life is investigated for both constant (creep) and cyclic loading (creep-fatigue) conditions at 620°C. Creep damage and Smith, Watson and Topper (SWT) strain parameter lifing methods are used, based upon material properties determined using uniaxial test data. The lower fatigue properties of the welded IN718 material at high temperature had a negative effect on the fatigue life of the structure. The effect of the weld on the life under constant loading at high temperature was found to be more difficult to evaluate due to significant stress relaxation.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/181/1/012028</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Creep fatigue Cyclic loads Fatigue life Fatigue tests Finite element method Gas tungsten arc welding High temperature Life prediction Material properties Mechanical properties Nickel base alloys Physics Stress relaxation Superalloys Uniaxial tests |
| title | High temperature life prediction of a welded IN718 component |
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