1、2D 金属切削模拟步骤在 ANSYS Launcher 界面中,选择 ANSYS Mechanical/LS-DYNA1、 菜单过滤Main MenuPreprocessorLD-DYNA ExplicitOK2、 设置文件名及分析标题Utility MenuFilechange Jobname2D cuttingNew log and error file :YESOKUtility MenuFilechange Titlecutting analysis OK3、 选择单元类型Main menupreprocessorElement TypeAdd/Edit/DeleteAdd2D sol
2、id 162OKoptions选择 const.stress ;LagrangianOK4、 定义材料模型(1) 定义刀具材料模型Main menupreprocessorMaterial PropsMaterial Modelsrigid material输入:DENS:5.2e3 ;EX:4.1e11 ;NUXY:0.3 ;选择“Y and Zdisps” ;“All rotations”OK(2) 定义工件 Johnson-cook材料模型Main menupreprocessorMaterial PropsMaterial ModelsGruneisenJohnson-cook输入:D
3、ENS:7.8e3 ;EX:2.06e11 ;NUXY:0.3 A:507;B:320;C:0.28;n;0.064;m=1.06D1:0.15;D2:0.72;D3:1.66;D4:0.005;D5:-0.845、 创建几何模型(1)创建工件模型Main menupreprocessorCreateAreasRectangleBy Dimensions输入:X1,X2:0,5;Y1,Y2:0,3OK(2)创建刀片模型Main menupreprocessorCreateKeypiontsIn Active CS依次输入:keypoint number:5,X、Y、Z :5.1,2.9,0;k
4、eypoint number:6,X、Y、Z :6,3.228,0;keypoint number:7,X、Y、Z :6,4,0;keypoint number:8,X、Y、Z :5.294,4,0OK6、 网格划分(一)(1) 对刀片进行网格划分Utility MenuSelectEntitiesLines :By Num/PickApply选取刀片边线OKMain menupreprocessorMeshingSize contrlsManualsizeLinesAll linesNDIV:10OK(2) 对刀尖半圆进行网格划分Utility MenuSelectEntitiesLines
5、 :By Num/PickApply选取刀尖半圆OKMain menupreprocessorMeshingSize contrlsManualsizeLinesAll linesNDIV:3OK(3) 确定刀片的单元属性Main menupreprocessorMeshingMesh AttributesPicked Aeras选取刀片Apply确定材料号和单元类型号为 1OK(4) 刀片网格划分Main menupreprocessorMeshingMeshToolMesh:Aeras;shape:Tri;freeMesh选取刀片OK(二)(5) 对工件进行网格划分切分工件Utility
6、menu WorkplaneWp settingsGrid and TriadMinimum ,maximum:-5,5 ;Spacing:1.0OK 平移和旋转工作平面并用其切分工件Utility menu WorkplaneOffset wp by incremensX,Y,Z offsets:0,2.5,0;XY,YZ,ZX angle:0,90,0OK Main menupreprocessorModelingoperateBooleansDivideAreas by wkplane选取工件OK取消工作平面显示Utility menuworkplaneDisplay workingpl
7、ane等分接触区域相关 Y向线段Utility MenuSelectEntitiesLines :By Num/PickApply选取工件接触区 Y向线段(两条)OKMain menupreprocessorMeshingSize contrlsManualsizeLinesAll linesNDIV:10OK等分接触区域相关 X向线段Utility MenuSelectEntitiesLines :By Num/PickApply选取工件接触区 X向线段(两条)OKMain menupreprocessorMeshingSize contrlsManualsizeLinesAll lines
8、NDIV:40OK等分接触区域不相关 Y向线段Utility MenuSelectEntitiesLines :By Num/PickApply选取工件接触区 Y向线段(两条)OKMain menupreprocessorMeshingSize contrlsManualsizeLinesAll linesNDIV:25OK等分接触区域不相关 X向线段Utility MenuSelectEntitiesLines :By Num/PickApply选取工件接触区 X向线段(底边)OKMain menupreprocessorMeshingSize contrlsManualsizeLinesA
9、ll linesNDIV:30OK确定工件的单元属性Main menupreprocessorMeshingMesh AttributesPicked Aeras选取工件Apply确定材料号为 2和单元类型号为 1OK工件网格划分Main menupreprocessorMeshingMeshToolMesh:Aeras;shape:Quad;mappedMesh选取工件OK7、 建立 partMain menupreprocessorLS-DYNA optionspart optionscreate all partOK(part1:刀具;part2:工件)Plotparts(不同颜色显示单
10、元)8、定义接触信息Main menupreprocessorLS-DYNA optionscontactDefine contactsurface to surf;Eroding;静、动摩擦系数为 0.15、0.10OK弹出 contact options对话框,确定接触件(工件) ,目标件(刀片)OK9、 施加边界条件Utility menuselectEntitiesNodes :By Location :X CoordinatesMin,Max:-0.01,0.01;From FullApply(选中左侧边所有节点)Main menupreprocessorLS-DYNA option
11、sConstraintsApplyon nodespick AllAll DOFOKUtility menuselectEntitiesNodes :By Location :Y CoordinatesMin,Max:-0.01,0.01;From FullApply(选中底边所有节点)Main menupreprocessorLS-DYNA optionsConstraintsApplyon nodespick AllAll DOFOK恢复整个模型的选择Utility menuselectEverything10、 对刀片施加初速度Main menupreprocessorLS-DYNA o
12、ptionsInitial Velocityon partsw/Nodal Rotate选择 part1,VX:-100OK恢复整个模型的选择Utility menuselectEverything11、 设置能量控制选项Main menuSolutionAnalysis optionsEnergy options打开所有能量控制选项OK12、 设置人工体积粘性选项Main menuSolutionAnalysis optionsBulks viscosityQuadratic Viscosity Coefficient:1.0OK13、 设置时间步长因子Main menuSolutionTi
13、me controlsTime step ctrlsTime step scale factor:0.6OK14、 设置求解时间Main menuSolutionTime controlsSolution time1e-3OK15、 设置结果文件输出步数Main menuSolutionOutput ControlsFile output FreqNumber of stepsEDRST:50;EDHTIME:50OK16、 设置结果文件的输出类型Main menuSolutionOutput ControlsOutput File TypesAdd:ANSYS and LS-DYNAOK17、 输出 K文件Main menuSolutionWrite jobname.K18、 求解Main menuSolutionSolve19、 后处理(暂时不管)