ADD ELEMENT

 

l       Select ELEMENT(S), and the SELECT ELEMENTS dialog window is displayedSee Figure 4.3.3. There are three sets of functions, depending on whether SELECT BY CURSOR or SELECT BY X is ON.

 

Figure 4.3.3 Select Element

 

l       If SELECT BY CURSOR is toggled ON, the user can select elements in the following four ways.

 

                                      1.      Select  to select one element by its location or click the left mouse button and move it over the desired elements to select more than one element.

                                      2.      Select  to pick elements on a surface.  

                                      3.      Select  to pick elements inside a window.

                                      4.      Select  to pick elements inside a free hand region.

                                      5.      Select to pick elements by spread. The slider above ANGLE can be used to adjust the angle above which elements will no longer be selected. If the angle formed by the normal vectors of the selected element and the adjacent element is less than the selected angle, the adjacent element is selected.

                                      6.      Select  to pick elements inside a polygon. Click the left mouse button in a sequence to define the polygon.  Click the right mouse button to reject the last point and the middle mouse button to complete.

                                      7.      Select  to pick elements inside a circle.  Click the left mouse button to define the center of the circle.  Hold the mouse button and move the mouse to define the circle.  Release the mouse button to complete.

 

l        If SELECT BY is toggled ON, there are three ways to select an element.  The user may select by part, type, or range.  See Figures 4.3.4 ~ 4.3.6.  Click the drop down choice next to the SELECT BY button to choose one of the options.

 

Figure 4.3.4 Select by Part                        Figure 4.3.5 Select by Type

 

 

          

Figure 4.3.6 Select by Range           Figure 4.3.7 Element Type

 

1.         SELECT BY PART

See Section 4.2 to choose a part. All elements in the part will be selected when this option is selected.  See Figure 4.3.4.

2.        SELECT BY TYPE

Select a type in the ELEMENT TYPE POP-UP Window.  See Figure 4.3.7.  All elements of the selected type displayed on the screen will be selected.  See Figure 4.3.5.

 

Note:           Refer to the LS-DYNA User's Manual for a description of the nine types of elements.  Deselecting elements and closing the dialog box operations are similar to those in Section 4.5.1.  

             

3.        SELECT BY RANGE

Type the element range in the dialog window.  All elements within that range will be selected.  See Figure 4.3.6.

l       Select DISPLAYED, and all elements in the turned on parts will be selected.

 

l       Select DONE after processing each of the above functions.  The total number of selected elements will be shown in the window.  EXCLUDE and REJECT perform the same functions as in SELECT LINE.

 

l       Select OK to finish the selection of elements and return to the PART ADD menu.