I have activated a 3d element type, why are no elements generated when I extrude the mesh from 2d to 3d?
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Before extruding you must set the element extrusion options. At a minimum, you must select the 3d element type to be used and you must set the number of element divisions in the extrusion direction. In your case, element divisions were not specified so a volume only was created without elements. The GUI path for extrusion options command (EXTOPT) is: Main Menu > Preprocessor > Modeling > Operate > Extrude > Elem Ext Opts. The following example demonstrates: /prep7 !Enter the preprocessor blc4,0,0,10,10 !Create an area /view,1,1,1,1 !Isometric view et,1,200 !Add 2d mesh200 element type keyopt,1,1,6 !Set mess200 to 4node quad amesh,1 !Mesh area et,2,45 !Add 3d solid45 element type type,2 !make this type active voffst,1,5 !Extrude area along normal eplo !Only 2d elements /wait,2 !**** ! Area is extruded into a volume here, but there are no elements generated !**** !If you use the Element Extrusion Options before Extruding, elements will be generated as follows: extopt,esize,5 !Extrude with 5 elements through extrusion voffst,1,5 !Try extrude again |
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