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1、D.11.2 CombiningthedataobjectsInthissectionyouwillcreateastressversusstraindataobjectbycombiningthestressversustimeandstrainversustimedataobjects.Tocombinethedataobjects:1.IntheResultsTree,double-clicktheXYDatacontainer.2.FromtheCreateXYDatadialogboxthatappears,selectO
2、perateonXYdataandclickContinue.AnOperateonXYDatadialogboxappears.Thedialogboxcontainsthefollowinglists:·TheXYDatafieldontheleftcontainsalistofexistingX–Ydataobjects.·TheOperatorsfieldontherightcontainsalistofallthepossibleoperationsyoucanperformonthedataobjects.3.Fromt
3、heOperatorsfield,clickcombine(X,X).combine()appearsintheexpressiontextfieldatthetopofthedialogbox.4.IntheXYDatafield,dragthecursoracrossboththeStrainandtheStressdataobjectstoselectbothandclickAddtoExpressionnearthebottomofthedialogbox.Theexpressioncombine("Strain","Str
4、ess")appearsintheexpressiontextfield.Inthisexpression"Strain"willdeterminetheX-valuesand"Stress"willdeterminetheY-valuesinthecombinedplot.5.FromthebuttonsalongthebottomoftheOperateonXYDatadialogbox,clickSaveAs.6.FromtheSaveXYDataAsdialogboxthatappears,enterthenameStres
5、s-StrainandclickOK.ThenewdataobjectStress-StrainappearsintheXYDatacontainer.7.CanceltheOperateonXYDatadialogbox.以上部分讲的就是如何利用已有的应力时间,应变曲线得到应力应变曲线了(1)在右侧函数栏中单击一下功夫combine()(2)在函数栏左边的变量列表中双击一下XYDATA_STRAIN(3)在函数栏左边的变量列表中双击一下XYDATA_STRESS(4)单击下面的SAVEAS按钮起个名字,关闭该对话框(5)双击图中阴
6、影部分就可以了D.11.3 Plottingandcustomizingthestress-straincurveYouwillnowusetheStress-Straindataobjectthatyoujustcreatedtoplotthestress-straincurve.这部分讲的就是如何给应力应变曲线设置标题,栅格以及如何从应力应变曲线中获得曲线上某点的数值并保存到文件中去,看看就可以了,很简单的.Toplotthestress-straincurve:1.IntheXYDatacontainer,double-cli
7、ckStress-Strain.Aplotofthestress-straincurveappearsintheviewport.2.Yourplotofstressversusstraininheritedthecustomizedchartsettingsfromyourpreviousplot.Torestorethedefaultchartoptions,dothefollowing:a.OpentheChartOptionsdialogbox.b.ToggleoffMajorinboththeXGridLinesandYG
8、ridLinesfields.c.ClickDismiss.3.Theplotofstressversusstrainappears,asshowninFigureD–14.Inthisfigure,thevisibilityofth
