厚板焊接的表面殘余應(yīng)力測(cè)試方法研究.pdf

1、分類號(hào)UDC密級(jí)學(xué)校代碼10497劣禪擺多次穿學(xué)位論文題目英文厚板焊接的表面殘余應(yīng)力測(cè)試方法研究題目仆icknessPlateweldment研究生姓名高望曦姓名一一巴上星一職稱教授學(xué)位博士指導(dǎo)教師一—單位名稱武漢理工大學(xué)交通學(xué)院郵編430063副指導(dǎo)教師姓名一二鰲狙扛一職稱單位名稱中國(guó)艦船研究設(shè)計(jì)中心郵編430060申請(qǐng)學(xué)位級(jí)別碩士工程領(lǐng)域業(yè)名稱船舶與海洋結(jié)構(gòu)物工程論文提交日期20H年4月論文答辯日期2011年5月學(xué)位授予單位武漢理工

2、大學(xué)答辯委員會(huì)主席評(píng)閱人戶戶學(xué)位授予日期2010年5月AbstractThestudyofresidualstressoecuPiesaveryimPortantPositioninthefieldoftheweldmentreseareh.Ontheresearehabouttheweldingtecbnology，weusuallytakethosemimbersthattestedbyblindholedrillingmethod

3、asthestandardofthechange’5effeetiveness.InthenumericalsimulationoftheweldingProeess，wealsocomParetheresultwiththeresultthateomesfromtheresidualstressmeasurementmethod.Whenwetrytounderstandthedistributionofresidualstressi

4、ndifferentmaterialsanddifferentweldingtyPes，it’5necessaryfustotakesomeresidualstresstest.AtPresent，therearemanywaystotesttheresidualstress.Butwestilleanotensurethedistributionoftheresidualstress.Thissituation15maiulyeaus

5、edbythelackoftheinterseetionalstudy.EsPeeially，weneedthestudyofehangingthetestingaPProaehbytheintersectionalstudy.AsourawarenesstotheresearehoftheapProaehofthetestingresidualstress15notveryclear，ourstudytothedistribution

6、oftheresidualstress15limited.Forthesamereason，whenweusethefiniteelementsoftwaretosimulatetheweldingProeess，faeingalotofnumericalresultswecannotjudgewhiehkindofsimulationmethod15mesimilartotheaetualdistributionoftheresidu

7、alstress.Basedonthissituation，inthisthesis，1haveehosentheX一raymeasurementmethodandblindholedrillingmethodtotestsomepointsresidualstressinheavyPlateweldment，andcomparedthetwoway’5results.InthispaPer，1havedonesomeexPerimen

8、tabouttheX一raymeasurement’sPre一oPeration.Andthen，1havetestedresidualstressinheavyPlateweldmentintheseetionthatPe印endieulartothewelddireetionwiththeX一raymeasurementmethodandblindholedrillingmethod.Atlast，1havetesttheresid

9、ualstressthatbefeandaftertestingbytheblindholedrillingmethod.Then1madeacontrastbythesetwotestS.Aecordingtotesttheresidualstressofthesurfaeethataftersanding，wefoundthatthesurfaeeaftersandingdoesnoteonfmtothediffractionrul

10、e.FromtheAllgleofX一raymeasurementmethod，weunderstoodthatthere15somethingwrongwithsandingsurface.Then1ProPosedsomesuggestiontotheblindholedrilling.AecordingtotheX一raymeasurementandtheblindholedrillingmethods’resultshowedt