Fracture toughness and safety assessment of X65 offshore pipeline welded joints-中国期刊网

摘要 Inthisinvestigation,themechanicalpropertiesandlow-temperaturefracturetoughnessofAPI5LX65offshorepipelineweldedjointswerestudied.StructureIntegrityAssessmentProcedure(SINTAP)-FailureAssessmentDiagram(FAD)methodwasappliedtothepipestructurewithsurfaceflawattheweldtoe.AccordingtotheISOstandardBS7448,theCTODfracturetoughnessoftheweldedjointswasdeterminedatthetemperatureof0℃.Fortheheat-affectedzone(HAZ)specimens,post-testmetallographicanalysiswasperformedtoverifythatthetipofthecrackwaslocatedinthecoarsecrystalzoneinordertoconfirmthevalidityoftheaboveresults.Thefailurelinesofanalysislevel1and3ofweldmetalwerederivedfromtheresultsofthemechanicalpropertytest.Theassessmentwasperformed,consideringthemaximumlaystress,residualstressconservativelyassumedtobeuniformtensilestress,andminimumCTODvalue.Theresultsoftheassessmentshowedthatpipelinestructurewithasurfaceflaw(theheightandlengtharerespectively2.2mmand5mm)attheweldtoeissafe.ThisstudylaysthefoundationofapplicationofSINTAPtopipelinestructureassessment.

1李建军;杜乃成;王义;周文波;周何. Research on the properties of MAG welded joint of X65 pipeline steel.焊接,2013-03.
2刘宇;石悦;王立君;赵小辉. Creep fracture parameters of polyethylene pipe welded joints.焊接,2012-02.
3王东坡;张玉凤;霍立兴;陈俊梅;王文先. Application of the local approach to the fatigue assessment for welded joints.焊接,2003-02.
4. Effects　of　strength　matching　and　crack　depth　on　the　fracture　parameters　for　welded　joints.焊接,1994-01.
5白正阳;胡波. SENOVA X65 种子选手.车辆工程,2015-04.
6W. Huang (1) ; Y. Garbatov (1) ; C. Guedes Soares (1). Fatigue Reliability Assessment ofCorrelated Welded Web-frame Joints.船舶与海洋工程,2014-01.
7姚舜;石忠贤;楼松年. A study on welded joint toughness of X-60 steel.焊接,2000-02.
8. System Reliability Analysis of Offshore Strctures and Component Safety Rank Assessment.海洋科学,1998-02.
9张建军;邸新杰;金宝;郭晓疆;李午申. Classified recognition for metal magnetic memory signals of welding defects in API 5L X65 pipeline steel.焊接,2012-03.
10LU Yan;WANG Jia;WEI Wenpu;YANG Yong;AN Wei. Development and Application of Oil-Spill Risk Assessment Model for Offshore Pipeline.海洋科学,2014-03.

Fracture toughness and safety assessment of X65 offshore pipeline welded joints

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Fracture toughness and safety assessment of X65 offshore pipeline welded joints

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