This
function enables the user to define forming parameters for the LS-DYNA analysis.
The dialog box is shown in Figure 10.1.1.
Figure 10.1.1 The Analysis Setup dialog box
UNIT
The user can select a Unit system by clicking the drop down menu of Unit. As shown in Figure 10.1.2, four types of Unit systems are available. The default Unit system is set as <MM, TON, SEC, N>.
Figure 10.1.2 The Unit System drop down menu
DRAW TYPE
The user can select a draw type by clicking
on the drop down menu of Draw Type to display the menu illustrated in Figure 10.1.3.
Figure 10.1.3 The Draw Types drop down menu
GRAVITY ONLY
Do not define tool motion. The
blank is only deformed by gravity.
SINGLE ACTION
The die (female piece) is above
the blank.
DOUBLE ACTION
The die (female piece) is below
the blank.
SPRING BACK
Relieve residual stresses of
deformed sheet metal part (imported .dynain file).
USER DEFINE
The Draw Type is user defined.
SUPERPLASTIC
Simulate superplastic forming
process.
Note: The defined Draw Type works in conjunction
with both the BLANK OPERATION/AUTO POSITION and TOOL/AUTO POSITION functions.
Figure 10.1.4 Type of contact interfaces
CONTACT INTERFACE
There are several types of
contact interface available for an LS-DYNA stamping simulation, as listed in Figure 10.1.4. The user can set type of contact interface between
all tooling and blank. The default contact interface between blank and tooling is
set as FORM ONE WAY S. TO S.
Note: Please refer to the LS-DYNA Keyword User's Manual, keyword *CONTACT, for more detailed information about each of the contact interfaces.
STROKE DIRECTION
The
user can define stroke direction in X, Y, or Z.
CONTACT GAP
The contact gap is the minimum distance between
tooling and blank after auto-positioning. The default contact gap is set to
1.0. The contact gap will be overwritten if blank thickness is defined.
DYNA SOLVER PRECISION
This option enables the user
to set the path of Single and Double Precision solver. If the user submit card
or restart file in the file menu, the program will start LS-DYNA from the path
set here. The user can click the button to change the path.