Abaqus铺层方向说明.doc

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1、LayuporientationThelayuporientationdefinesthebaseorreferenceorientationofallthepliesinthelayup.Inconventionalandcontinuumshelllayups,Abaqusprojectsthespecifiedorientationontothesurfaceoftheshell,aligningthedirectionofthelayuporientationthatyouchoosewiththeshellnormal.Insoli

2、dcompositelayupstheorientationisnotprojected.Abaqus/CAEprovidesseveraloptionsfordefiningthelayuporientation:•Partglobal:Bydefault,thelayuporientationisthesameastheorientationofthepart.•Coordinatesystem:Youcancreateandselectadatumcoordinatesystemthatdefinestheorientation.•Di

3、screteorientation:Youcancreateadiscreteorientationthatprovidesanorientationvalueforeachnativeororphanmeshelementtodefinetheorientation.•Discretefield:Youcancreateandselectanorientationdiscretefieldthatdefinesaspatiallyvaryingorientation.•User-defined:Youcandefinetheorientat

4、ioninusersubroutineORIENT.ThisoptionisvalidonlyforAbaqus/Standardanalyses.22–6UNDERSTANDINGCOMPOSITELAYUPSANDORIENTATIONS•Normaldirection:ForalloptionsexceptUser-defined,youcanchoosewhichaxisdefinestheapproximatenormaldirectionofthecompositelayup.•Additionalrotation:Ifyouch

5、ooseaCoordinatesystem,Discreteorientation,orDiscretefieldtodefinethelayuporientation,youcanspecifyanangle(indegrees)thatdefinesanadditionalrotationaboutthespecifiednormaldirectionfortheentirelayup.Youcanuseascalardiscretefieldtospecifyaspatiallyvaryingadditionalrotationangl

6、e.