ADD ELEMENT
Select ELEMENT(S) and the SELECT ELEMENTS dialog window is displayed. See Figure 4.3.3. There are three sets of functions depending on whether SELECT BY CURSOR or SELECT BY is ON.
If SELECT BY CURSOR is toggled ON, the user can select elements in the following ways.
Select
to pick an element by its location.
Select
to pick elements on a surface.
Select
to pick elements inside a window.
Select
to pick elements inside an arbitrary region defined by the mouse.
Select
to pick elements by spread. This function is used in conjunction with the angle slider. If the angles formed by the element normals of the selected element and adjacent elements are less than the selected angle, the adjacent elements are selected.
Select
to pick elements inside a polygon.
If SELECT BY is toggled ON, there are three other ways to select an element. The user may select by part, type, or range, see Figures 4.3.4 ~ 4.3.6. Select the combination box to the right of the SELECT BY button to choose one of them.
1. SELECT BY PART
See Section EDIT PART for choosing 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 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 are similar those in Section ADD LINE.
3. SELECT BY RANGE
Type the numbers in the Pop-Up window. All elements within that range will be selected,see Figure 4.3.6.
Select DISPLAYED, all elements in the parts that are on are selected.
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 those in SELECT LINE.
Select OK to finish the selection of elements and go back to the PART ADD menu.
ADD SURFACE
Select SURFACE(S) and the SELECT SURFACE dialog window appears, see Figure 4.3.8.
DISPLAYED SURF
This function is used to select all displayed surfaces in the graphics.
KEY IN SURF RANGE
Select this button and the RANGE OF SURFACE dialog window will display, see Figure 4.3.9. The user can enter values in the displayed fields to select a range of surfaces.
Other functions are common with those in SELECT LINES.