6.4. Post

Fringe Component

Display fringe component data on the model.

Fringe Range

Set fringe and Iso-surface ranges.

History

Display and plot data for various data over time.

XyPlot

Control all open XY-Plot windows and files using this interface.

ASCII

Browse and display data in LS_DYNA ASCII output files.

BinOut

Browse, display, and compare data stored in binary output files.

Follow

Set a reference point/plane for animations.

Trace

Trace the paths of nodes over time.

State

Activate/deactivate time states and apply overlays to the model.

Particle

Particle method interface.

Chain Model

Chain multiple models together for animation.

Fld

Interface for metal forming analysis.

Output

Output model data.

Setting

Organize personal display preferences.

Vector

Display normal vectors for any element in the model.

6.4.1. FriComp

The FComp interface is used to display fringe component data on the model. It allows the selection of various scalar quantities like strains and stresses that can be fringed.

For shells and beams, such data is stored for different integration points through their thicknesses and cross sections respectively. Upon selecting a component to be fringed, further selection of data at a particular integration point can be made using a simple selection widget with options (Low/Mid/Upp/Max/Ave/Min/IPt/BPt).

By default LS-PrePost will fringe the maximum of all integration point data available.

Stresses and strains in d3plot are in the global coordinate system except when CMPFLG have been used. By default, LS-PrePost will plot the stress and strain as they are written to d3plot. The stress and strain can be plotted in Element, Global, Material or in a User specified coordinate system by changing the "d3plot/Elem/Glob/Mtrl/User" switch but this requires that both the d3plot and the keyword file have been read.

Load data using the User button and fringed. This can be from external third party software or element and nodal results output from the Output Interface in Post.

Basic

General functions for displaying fringe components.

Fringe expression

Display fringe components with formular expression.

Sample

Sample

A sample show how to use basic functions to fringe the model.

6.4.1.1. Basic

Fringe Component List

Fringe Component selection menu.

Stress

Global Stress/Strain components.

Ndv

Nodal Displacement/Velocity Contour.

Result

Stress resultant components.

Strain

Logarithmic strain components.

Misc

Pressure, Temperature, Thickness, etc.

Elastic

Elastic strains.

Beam

Beam fringe components.

SPH

Special SPH fringe components.

DES

Special DES fringe components.

S-ALE

S-ALE, Dynaauto, ISPG fringe components.

Forming

Forming components.

FLD

FLD strain components.

User

User defined fringe components.

LSDA

Lsda defined fringe components.

Apply

Collect fringe data.

Frin Choice

Choose fringe method (Frin/Isos/Lcon/Fiso/XFrn/FMes).

Max Choice

Set shell stress surface position and integration points (Low/Mid/Upp/Max/Ave/Min/IPt/BPt).

Coordinate System Choice

Plot stress and strain as they are in d3plot or in: Element, Global, Material or a User specified coordinate system. The "User" specified system is specified (per part) in Settings - General Settings - Local Coord System.

Integration Point List

Select shell integration point.

6.4.1.2. Fringe expression

Variable name text

Enter a variable name (max 8-char).

Add

Move component from fcomp interface to list.

Remove

Remove selected component from list.

Component definition list

List the definition of components.

Expression

Enter formular expression in the text widget.

Single Time Step

Only apply fringe expression to one state.

Fringe

Fringe data according to expression.

Done

Exit fcomp expression interface.

6.4.2. Range

Use this interface to set fringe and Iso-surface ranges.

Basic

General functions for setting fringe range.

Fringe color palette

Set fringe color palette.

Sample

Sample

A sample to show how to set Limit fringe color map to lower and upper user range.

6.4.2.1. Basic

Dynamic

A set of min/max ranges is computed for each time state.

Static

A constant min/max range is computed using all time states.

User

Range set by user, enter min/max values below.

Show

Show elements within the range entered below.

Entire Model

Range computed for entire model.

Active Parts Only

Range computed for active parts only.

Active Elements Only

Range computed for active elements only.

Min

Assign current range to user min.

Max

Assign current range to user max.

Assign

Assign current range to user min/max.

Report

Report the element number distribution.

Avg

Element to node averaging scheme.

Reverse Colors

Reverse the fringe color palette.

Range Node-based

Update the fringe max and min based on the nodal scalar.

Reverse Signs

Reverse the interforce file pressure sign.

Fringe Region Only

Set gray fringe outside the defined region.

Ident Min

Identify first N minimum values.

Max

Identify first N maximum values.

Number

Enter number of min/max values to be identified (N).

Region Min/Max

Show min and max values for region - use Zin to define.

Show Region Box

Show the region box.

Updated Region

Change the Min and Max region as model gets zoomed or panned.

Keep All Regions

Keep all identified region info on graphics area.

Lower

Set Limit fringe color map to lower user range. Select color for lower user range fringe. Change the lower fringe transparence.

Upper

Set Limit fringe color map to upper user range. Select color for upper user range fringe. Change the upper fringe transparency.

Set Iso Range

Set Isosurface range values independently.

Level

Set and enter number of colors in fringe palette.

Load

Load Fringe partition value and color for Legend,Each line in the file should contain 4 values:

Legend_value R G B

Where R G B are the color components in range 0.0 to 1.0.

Palette

Open fringe color palette. See below in details.

Update

Update range settings.

Done

Exit Fringe Range interface.

6.4.2.2. Fringe Color Palette

Max

Set fringe color for maximum of range.

Min

Set fringe color for minimum of range.

Hue

Use slider bar to set Hue color value.

Gray

Use slider bar to set Gray shade value.

Apply

Apply current palette to the fringe plot.

Default

Reset fringe palette to default values.

Save

Save fringe color palette to a file.

Load

Load fringe color palette from a file.

Done

Exit fringe palette interface.

6.4.3. History

This interface is used to display and plot data for various data over time. It allows selection of various nodal, element, and material quantities from binary files like d3plot, d3dtht etc...

Depending on the type of binary files loaded, the list of available components will change. Time history plotting data from d3plot files is also possible. However, typically a d3plot file contains data for state animation. Consequently the resolution of time history is limited to the number of states in d3plot files. For higher resolution time history plotting, either d3thdt, binout, or various ASCII files should be used.

Basic

Basic functions to display various components.

Affixation

Affixation functions, such as volume fail options.

Sample

Sample

A sample to show how to plot element component history value.

6.4.3.1. Basic

Global

Select global history plot.

Nodal

Select nodal history plot.

Element

Select element history plot.

Int Pt

Select element integration point history plot.

Part

Select material history plot.

R-Nodal

Select relative nodal history plot.

Scalar

Select fringed scalar history plot.

Vol Fail

Select volume of material failure option.

Sum Mats

Sum materials for material history plot.

Along Path

Plot fringe value along selected path.

Component list

Select a time history component.

Value

Select element values or max/min element value for material.

E-Type

Select element type for time history plotting.

E-Axes

Select shell element axes for time history plotting.

Surface

Select shell stress surface position.

Popup

Show XY-Data in Popup window.

Main

Show XY-Data in Main Window.

Plot

Plot time history data in current XY-plot window.

New

Plot time history data in a new XY-plot window.

Padd

Add time history data to current XY-plot window.

Clear

Clear picked entities.

Raise

Raise all open XY-plot windows or current page.

Pop

Open and Raise all closed XY-plot windows or current page.

Done

Exit Time History Results interface.

6.4.3.2. Affixation

Volume fail options:
Eroded

Add item to failure list.

Failure Levels List

Select failure levels from list.

Value

Enter failure level value to be added to the list.

Add

Add entered value to the failure levels list.

Clear

Clear text field and selected items.

Delete

Delete selected item from the failure levels list.

6.4.4. XyPlot

This interface is used to control all open XY-Plot windows and files. External XY data can be loaded for plotting and/or cross plotting.

Often there is need to plot force vs. deflection response of structures. This requires a force vs. time curve and a deflection vs. time curve. Cross plotting allows users to select deflection from the deflection vs. time curve for the x-axis and force from the force vs. time curve for the y-axis. If the number of points for the 2 curves is not the same, the data is interpolated.

Cross plotting can also be done from plot read in by using the Add button or from XY-plot windows. For cross plotting data from XY-plot windows, the Window option should be activated (The default is the File option).

The format of external XY data can be in Microsoft CSV format or XY data pairs as shown below. In this example, note how the first line of each curve definition defines the number of XY data pairs that follow:

2

0.0,0.0

10.0,20.0

4

0.0,0.0

30.0,20.0

40.0,10.0

50,0,10.0

Show

Show selected plots.

Cross

Cross selected plots.

Sample

Sample1

A sample to show how to plot curves.

Sample2

A sample to show how to cross curves.

6.4.4.1. Show

File

Show list of XY-Plot data files.

Window

Show list of current XY-Plot windows.

File/Window list

Select file/window to be shown.

Add

Open and add a XY-Plot data file to the filename list.

Remove

Remove a XY-Plot data file from the filename list.

Info

Show full XY-Plot data file path in command window.

Show

Show selected plot.

Cross

Cross selected plots.

CurveClip

Clip curves before plotting.

Points

Enter start and end clip points.

Value

Enter start and end clip values.

Amin

Enter minimum abscissa point or value.

Amax

Enter maximum abscissa point or value.

Interpolate

Linearly interpolate curves before plotting.

Curve Names List

Select curve to show or to crossplot.

Curve Name Filter

Enter text for name filter, clear to reset (must press enter).

Popup

Show XY-Data in Popup window.

Main

Show XY-Data in Main Window.

Plot

Plot XY-Plot data in current XY-Plot window.

New

Plot XY-Plot data in a new XY-Plot window.

Padd

Add XY-Plot data to current XY-Plot window.

Clear

Clear selected items in list.

Raise

Raise all open XY-Plot windows or current page.

Pop

Open and Raise all closed XY-Plot windows or current page.

Done

Exit Cross Plotting interface.

6.4.4.2. Cross

X-Axis

Select cross plot X-Axis.

Y-Axis

Select cross plot Y-Axis.

X

Select abscissa data curve name from above list.

Y

Select ordinate data curve name from above list.

Auto match and clip

Auto' match by abscissa values and clip data outside range.

6.4.5. ASCII

This interface is used to browse and plot time history data contained in various ASCII databases written by LS_DYNA like nodout, secforc etc...

There are approximately 30 different files that can be processed through this interface. Similar time history data output by LS_DYNA and beyond in binary files called binout can be processed using the Binout Interface.

Basic

Basic functions for every ascii file.

Affixation

Added functions for some ascii especial files, such as spcforc, jntforc etc.

Sample

Sample

A sample to show how to use it.

6.4.5.1. Basic

Ascii type list

Select ascii file type.

File

Load an ASCII file from an alternative directory.

Load

Load existing file for selected ASCII file type.

Unload

Un-Load selected ASCII file (to free memory).

Id selection list

Select the Id to show.

All

Select all ASCII items.

Clear

Clear all selections.

Rev

Reverse selection.

Info

Show information on the loaded ASCII file.

Component Selection list

Select compnoent to show.

File loaded list

Select an ascii file or multipe ascii files for processing.

Multiple Select

Set single or multiple selection on list.

All

Select all loaded files.

Clear

Clear all selection.

Reverse

Reverse selection.

Popup

Show XY-Data in Popup window.

Main

Show XY-Data in Main Window.

Plot

Plot items from ASCII file in current XY-plot window.

Padd

Add items from ASCII file to current XY-plot window.

New

Plot items from ASCII file in a new XY-plot window.

Clear

Clear picked entities.

Raise

Raise all open XY-plot windows or current page.

Pop

Open and Raise all closed XY-plot windows or current page.

Done

Exit ASCII File Operation interface.

6.4.5.2. Affixation

6.4.5.2.1. Nodout options
HicCsi

Open Hic/Csi pre-filter options interface.

Apply pre-filter

Apply filtering on acc. components prior to calculate HIC/CSI .

Filter

Select filter to apply.

Point

Select number of points to average.

Time

Select time unit for filtering and hic/csi calculation.

C/s (Hz)

Select and enter frequency.

Grav.Con

Select and enter gravity constant.

Done

Close HIC/CSI pre-filter panel.

6.4.5.2.2. Secforc options
Total

Toggle the combining of multiple ASCII items.

Plot Secforc Vector

Plot Secforc vectors for selected sections.

Plot in Local

Plot Secforc vectors in local plane system.

Label On

Turn on label of the section force vectors.

VsizeSF

Select and enter scale factor for vector size.

6.4.5.2.3. Spgcplforc options
6.4.5.2.4. Rcforc_dr options

Rcforc_dr is an output set for the dynamic relaxation phase. Dynamic relaxation is done before running the simulation, and applies prestresses and other loads to the model.

6.4.6. BinOut

This interface facilitates the plotting of time history data from binary database output generated by LS_DYNA versions ls970 and newer. The contents of these binary files is the same as ASCII files except these files are stored as branches in a single binary file from smp versions of LS_DYNA. The branch system makes it easy to navigate and there is even the option to open multiple files for comparison. Note that the mpp version of ls970 produces a series of binout files: binout0000, binout0001, etc...

Basic

Basic functions for reading BINOUT file.

Affixation

Added functions for sub branches, such as Abstat_cpm, Deforc, Elout, Glstat, Matsum, Nodfor, Rbdout, Rcforc, Sleout, Spcforc, Swforc, Output, HIC/CSI and so on.

Sample

Sample

A sample to show how to use binary database output.

6.4.6.1. Basic

Plot

Plot selected component in current XY-Plot window.

New

Plot selected component in a new XY-Plot window.

Padd

Add selected component to current XY-Plot window.

Pop

Open and Raise all closed XY-Plot windows or current page.

Clear

Clear list selections.

Info

Show the general information about the current selections.

Sub branch list

Sub-branches for the BINOUT file.

Popup

Show XY-Data in Popup window.

Main

Show XY-Data in Main Window.

Load

Load a BINOUT file.

Unload

Un-load a BINOUT file.

Save

Save a BINOUT branch to a file.

Search

Search and select branch items. Separate multiple search strings with commas. FromID: ToID selects a range of IDs. Free text searching with * and ? is allowed. The option "-id" searches the first token on each item. The option "-heading" searches all except the first token.

Open file list

BINOUT files currently opened.

Main branch list

Main branches in the BINOUT file.

Done

Exit BINOUT interface.

6.4.6.2. Affixation

6.4.6.2.1. Abstat_cpm options
Abstat_cpm branch list

Select entities for the Abstat_cpm branch.

Exp All

Expand all entities.

Cps All

Collapse the tree.

Airbag

Select gas particle components for the airbag entities.

Part

Select gas particle components for the part entities.

Spec

Select gas particle components for the spec entities.

6.4.6.2.2. Deforc options
Left list

Select Deforc displacement entities.

Right list

Select Deforc torsional enitites.

All-D

Select all displacement entities.

None

De-select all entities.

All-R

Select all torsional entities.

Component list

Select Deforc component.

6.4.6.2.3. Elout options
Element id list

Select element ids (and nip).

Integration points list

Select integration points with element ids.

All

Add all possible combinations of element ids and integration points.

None

Remove all item from element list.

Revert

Reverse the previous action.

Stress, Strain, Muscle, or History Choice

Choose an available component: stress, strain, muscle, or history.

Component list

Select components to plot.

All

Select all components.

None

De-select all components.

Rev

Reverse the previous selection.

6.4.6.2.4. Glstat options
Entity list

Select stone walls id.

Component list

Select components to plot.

6.4.6.2.5. Matsum options
Entity list

Select materials for matsum plot.

Sum Mats

Sum component result through all selected materials.

Hic/Csi

Turn on/off the Hic/Csi panel.

Hic/Csi list

Select head injury criteria / chest injury options.

Component list

Select components to plot.

6.4.6.2.6. Nodfor options
Entity list

Select entities for output.

AllGrp

Select all entities in group form.

RevGrp

Reverse selections in group form.

AllNod

Select all entities in nodal form.

RevNod

Reverse selections in nodal form.

None

De-select all entities.

Component list

Select components to plot.

6.4.6.2.7. Rbdout options
Entity list

Select the entities.

All

Select all entities.

None

De-select all entities.

Rev

Reverse the previous selection.

Component list

Select the components.

All

Select all components.

None

De-select all components.

Rev

Reverse the previous selection.

Local

Switch to local components.

Hic/Csi

Turn on/off the Hic/Csi panel.

Hic/Csi list

Head injury criteria / chest injury options.

6.4.6.2.8. Rcforc options
All Radion button

List both slave and master sides of the contacts.

Masters

List only master sides of the contacts.

Slaves

List only slave sides of the contacts.

6.4.6.2.9. Sleout options
Sum

Sum over the selected entity with selected componets.

Total

Toggle total components.

6.4.6.2.10. Spcforc options
Translational SPC

List only SPC nodes that has translational forces.

Rotational SPC

List only SPC nodes that has rotational moments.

Total

Sum the result for all selected entites.

6.4.6.2.11. Swforc options
Constraint

List only constraint spot weld type.

Weld

List only weld spot weld type.

Beam

List only beam spot weld type.

Solid

List only solid spot weld type.

Non-nodal constraint

List only non-nodal spot weld type.

Solid assembly

List only solid assembly spot weld type.

6.4.6.2.12. Output options
Write out branches list

Select to remove the branch from write-out list.

All

Write out all branches.

None

Clean up current selected branches.

Rev

Select the branches not currently selected.

As ASCII(es)

Export selected binout branches as ascii databases.

File name

Enter a file to write out the selected branches and browse the directory.

Apply

Write out selected branches to a file.

Done

Exit save interface.

6.4.6.2.13. HIC/CSI options
Apply pre-filter

Apply filtering on acc. components prior to calculate HIC/CSI.

Fliter

Select filter to apply.

Pt.Ave

Select number of points to average.

Time

Select time unit for filtering and hic/csi calculation.

C/s(Hz)

Select and enter frequence.

Grav.Con

Select and enter gravity constant.

6.4.7. Follow

The Follow interface is generally used in conjunction with model animation. Choose either a single point or a plane which will then be frozen and displayed in the center of the screen at all times during the animation.

If the structure is undergoing large rigid body translation or rotation as it is crushing, often it is difficult to understand how the structure is deforming relative to some point in the structure. The Follow Point option allows freezing of the displacement of a follow point (node picked to freeze). Follow Plane is for removing rotations of a body undergoing large rotations, such as tires, a brake rotor, or even an entire vehicle.

Follow plane has an additional option to select parts to freeze rotation as opposed to the whole model (all parts). Follow settings are retained upon exiting this interface and entering another interface. The Reset button disables the follow point and follow plane.

Follow Point

Choose single node to follow.

Follow Plane

Choose plane to follow.

6.4.7.1. Follow Point

Node1

Enter ID for Node 1.(Follow point mode can select only 1 node.)

X/Y/Z

Select X/Y/Z direction to follow.

Select Model

Select Model When multiple models are loaded, this opens a menu in region Model List from which to choose the model that Follow will apply to.

Model List

Display all models.

Apply

Apply follow to model view.

Clear

Clear pick list.

Reset

Deactivate follow mode and restore model to previous position.

Done

Exit Follow interface.

6.4.7.2. Follow Plane

Node 1/Node 2/Node 3

Enter ID for Node 1/Node 2/Node 3.

Part

Follow plane with respect to selected parts. Pick/Enter part ID.

All

Follow plane with respect to entire model.

6.4.8. Trace

This interface is used to trace the paths of nodes over time (note that it is available for post-processing only). The trajectory of nodes can be displayed by selecting them using the General Selection Interface and then playing the animation using the Animation Controls (which can be accessed by clicking the Anim Rendering Button). The plotted traces can be output in several forms (displacement curves, coordinate histories, or *BOUNDARY_PRESCRIBED_MOTION_NODE). This data is often used to define prescribed motion for sub-system models.

Node Trace

Selected Node Trace menu.

Streamline

Selected Streamline menu.

6.4.8.1. Node Trace & Point trace

Line Width

Select trace line width.

Line Color

Select trace line color.

Node Label

Turn node label on/off.

Staring State

Enter starting state number.

WrCur

Write displacements as *DEFINE_CURVEs for selected nodes.

WrTrace

Write coordinate history of selected nodes.

WrBPM

Write trace node motion as *BOUNDARY_PRESCRIBED_MOTION_NODE.

ClrTrace

Clear traced entities.

Done

Exit Node Trace interface.

6.4.8.2. Streamline

Vector Type

Select vector type. This will be shown only you load a mutiple solver model.

X/Y/Z component of vector

Select X/Y/Z componet of vector.

Add

Add current point to point list.

Delete

Delete selected point from list.

Clear

Delete all points from list.

X/Y/Z

Current X/Y/Z coordinate picked or entered.

Locate

Find and plot start points on model.

Show

Caculate and show streamlines on model.

Clear

Remove streamlines from model.

Base point

Pick base point for plane.

X/Y/Z

Base X/Y/Z coordinate picked or entered.

Vector

Pick head of vector from base point.

Normal

Pick direction of plane normal from base point.

normX/normY/normZ

normX/normY/normZ direction.

Xpt/Ypt

Number of point in X/Y direction.

Pitch

Distance between points in plane.

Line style

Select streamline display type.

Appearance

Select streamline appearance.

Scale Option

Scale relative width for streamlines.

Scale Text Feild

Enter scale relative width for streamlines.

On/Off check box

Switch streamline display on or off.

Points check box

Switch streamline start point on or off.

Location Point

List of separately defined planes of location points.

Select

Show only selected defined planes of streamlines.

Delete

Delete selected defined planes of streamlines.

Box

Use entity seletion get box max and min value.

Region

Use genseletion get region max and min value.

PMin/PMax

Call Position Dialog to get position.

X/Y/Z

Enter X/Y/Z coordinates of the minimum/maximum point.

Show

Show outline of active box.

Apply

Set active box.

Clear

clear/delete active box.

6.4.8.3. Part Trace

Frequency

Set part trace frequency.

Trace Color

Select trace part color.

Draw Mode

Select part trace draw mode.

6.4.8.4. CG Trace

Line Width

Select trace line width.

Line Color

Select trace line color.

Part CG

Change to trace part cg for every selected part.

No Line

Change to not draw the lines.

Starting State

Enter starting state no.

ClrTrace

Clear traced entities.

Show

Show the trace of cg for selected elements or parts.

6.4.8.5. Curve Trace

project by normal

Project by ray intersection with mesh.

Evaluated Minimal Distance

Searching a point with evaluated minimal distance onto mesh.

Project by Closest Distance

Searching a point with minimal distance onto mesh.

X/Y/Z button

Set normal as (1, 0, 0) / (0, 1, 0) / (0,0,1).

X/Y/Z text control

Enter head of vector x/y/z component.

Line Width

Select trace line width.

Line Color

Select trace line color.

Delete All

Delete all curve tracing.

6.4.8.6. Flow Curve

Pick Solid Part

Pick solid part which curve flows inside.

Plane

Using a plane to cut solid, and generate curves cluster in the cutting plane.

Curve

Insert a curve into the solid inside.

Curve Direction

Curve's direction.

Single Selection

Only one plane or curve visible in the view.

Rev

Reverse selection (hide/show).

All

Select all flow curves and show all.

Del

Delete all the selected(shown) curves.

Flow Curve

Show or hide current flow curve,Set flow curve width and color.

Raw Curve

Show or hide raw curve,Set raw curve width and color.

Trajectory

Show or hide current flow curve,Set trajectory width and color.

Show Points

Show all points from curve.

Transparent

Draw transparent.

Show

Show or hide result after dialog close.

6.4.9. State

Use this interface to activate/deactivate time states and apply overlays to the model.

Select

Display selected state.

Inactive

Make selected inactive.

Delete

Delete selected state permanently.

MultiState

Display multiple states on graphics window.

Sample

Sample

The samples to show how to use it.

6.4.9.1. Select

State times

State list.

Ref State

Change displacement referent state on/off. Enter reference state for displacements.

Overlay State

Turn overlay mode on/off. Enter state numer for overlay or inactive.

Overlay Color

Select overlay color.

Overlay Draw Type

Select overlay type.

Fringe Diff State

Set to difference fringe mode. Enter state number for difference fringe.

Fringe Rate

Set fringe to rate of changing mode.

6.4.9.2. Inactive

The same as Select

6.4.9.3. Delete

Delete Files

Delete d3plot files if possible.

Confirm

Push button to delete states.

6.4.9.4. MultiState

No. of WHoriz

Select and enter number of windows in horizontal direction .

No. of WVerti

Select and enter number of windows in vertival direction .

Assign

Enter states numbers for all subwindows. (For example - 1st:last:inc)

Apply

Apply multiple states rendering.

Clear

Clear multiple states rendering.

Reset

Reset all states to active.

Done

Exit state time/overlay interface.

6.4.10. Particle

The particle interface is used to simulate the gas generated to inflate airbags. The particles maybe have mass and momentum and act on the surfaces of the bag to expand it. A model can have several bags and the bags surface has porosity and vent holes for the gas to escape. Showing the particles and there movement helps to illustrate how the gas moves into and around the bag as it inflates. When a model including particles is loaded, the particle interface will be shown, or this interface can't be shown.

Basic

Operations of showing particles and changing particles' color and type in bags and gas mixtures.

Plot Velocity Distribution

Show the area of plotting velocity distribution function.

Particle Basic Info

Show bags information for the particle model.

Fringe

Show fringe plotting.

Vector

Show vector plotting.

6.4.10.1. Basic

Top menu

Show particles in all bags and all gas mixtures.

Top color button

Change color for selected particle type.

B#NO.G#NO. check box

Show particles for bag#NO.gas#NO.

B#NO.G#NO. menu

Choose a different displaying particle type.

B#NO.G#NO. color button

Choose a differnet color for the gas component.

Skin mode

Toggle between skin and interior mode.

Style

Select particle display style.

SF

Choose and enter a scale factor for particle size.

6.4.10.2. Plot Velocity Distribution

Plot Velocity Distribution

Show the area of plotting velocity distribution function.

Theory Result

Show the velocity distribution theory results.

M

Molar mass.

R

Universal Gas Constant.

T

Temperature.

Sampling number

Select sampling number when plotting the velocity distribution.

Plot

Plot velocity distribution curve in current xy-window.

New

Plot velocity distribution curve in new xy-window.

Padd

Add velocity distribution curve in current xy-window.

6.4.10.3. Particle Basic Info

Particle Basic Info

Show bags information for the particle model.

6.4.10.4. Fringe

Fringe

Show fringe plotting.

Vector

Show vector plotting.

Fringe components list

Select an available component to fringe.

Apply

Apply fringe.

Cancel

Remove fringe.

6.4.10.5. Vector

Vecotor components choice

Choose a vector component to plot.

X, Y, Z

Plot x, y, z-component for the vector.

S.F

Choose and type a scale factor for vector size.

Apply

Apply the vector plot to the model.

Cancel

Cancel vector plotting.

Done

Exit the Particle interface.

6.4.11. Chain Model

Multi-step analyses are often conducted in separate phases as individual LS_DYNA runs. For each run a set of binary d3plot files is produced, and each set of plots starts time of T=0.0.

This interface allows chaining individual sets of d3plot files into a single animation sequence

Sample

Sample

A sample to show how to use it.

Available Model List

List of currently loaded d3plot sets.

Selected Model List

List of plot sets that will be chained.

Apply

Apply chaining to this model.

Remove

Remove this model from chaining.

Rem All

Remove all models from chaining.

Starting State

Enter the starting state number.

Ending State

Enter the ending state number.

Increment

Enter the state increment number.

Blank Shape

Show the final shape of blank.

Show Blank Only

Show Blank Only.

ChainAll

Apply chaining to all models.

ChnRvsAll

Apply chaining to all models in the opposite order.

Chain

Apply chaining to all selected models.

Unchain

Unchain selected models.

6.4.12. FLD (Forming Limit Results)

This interface is used for metal forming analyses. An example of the correct format to use when loading an external FLD data file is shown below. The second line ("8" in the example) should be set equal to the number of coordinate pairs that follow (one pair per line).

Plot

Plot FLD diagram in current XY-Plot window.

New

Plot FLD diagram data in a new XY-Plot window.

Padd

Add data to FLD diagram in current XY-Plot window.

Clear

Clear picked entities.

Raise

Raise all open XY-Plot windows.

Pop

Open and Raise all closed XY-Plot window.

6.4.12.1. FLD(Forming Limit Results)

t

Enter sheet thickness in mm.

n

Enter fld crit. formula index.

Set

Apply the new t and n values.

t_n

Set thickness and index of FLD curve.

File

Read thickness and index of FLD curve from a file.

Browse

Open flc data file.

Point

Select an item for point on FLD plot.

Strain Path

Select an item for tracer on FLD plot.

FLD E'Strain

Toggle FLD Strain (Engineering/True).

Part

Select a material for FLD plot.

Element

Select an element for FLD plot.

Area

Define an area for FLD plot.

Polygon

Define a region for FLD plot.

Clear

Clear information in popup windows.

Info

Open/Close FLD information dialog.

In

Select entities within the area/polygon.

Out

Select entities outside the area/polygon.

Position

Select shell surface for FLD results.

6.4.13. Output

This interface is used to output model data. During post-processing of binary d3plot files, often there is a need to write entire or partial models out at a particular state in various third party formats as well as in LS_DYNA keyword file format. Such output is often used for conducting analysis like spring-back followed by crash analysis.

In additions to this, the output can be limited to only nodal coordinates, element definitions, nodal velocities, element results, nodal results, shell principal strains, shell element thicknesses, and fluid surfaces. Fluid surfaces are only available if fluid data is present from ALE simulations in d3plot files. Output of a number of states can be saved to a single file by activating the Append option.

Basic

Basic functions to write model data to files.

Affixation

Added options for interface force file. When the file loaded is interface force file, this area will be shown.

6.4.13.1. Basic

Format

Select output format.

Active Parts Only

Write data for the active parts and elements only.

Entire Model

Write data for the entire model.

Int.ID

Write elements and nodes using internal ID.

User ID

Write elements and nodes using user ID.

Element

Write element connectivities to file.

Nodal Coordinates

Write nodal coordinates to file.

Nodal Displacment

Write nodal displacements to file.

Nodal Velocities

Write nodal velocities to file.

Element Results

Write element results to file.

Nodal Results

Write nodal results to file.

Shell P-Strain

Write shell principal strain to file.

Shell Thickness

Write shell element thickness to file.

Fluid Surface

Write fluid surface segments to file.

Element Centroid

Write element centroid coordinates to file.

1 file per part

Write each part to a different file.

Separation Vector

Write part separation vectors to file.

Exclude strain and stress

Don't output shell thickness, initial stress and strain. Only available when output dynain ASCII file.

Exclude history variables

Don't output history variables.

Solid ortho

Elements using orthotropic material are written as *ELEMENT_SOLID_ORTHO, with directions corresponding to the material directions. Only available when output dynain ASCII file.

Long format

Output keyword on long format.

SPH Surface

Write SPH surface segments to file.

Point Scalar value

Write point scalar value.

Append

Select to append data to an existing file.

St No

Enter state sequence to be written (eg 1:5:2).

Normalization

A factor that is inside d3eigv for normalization of the eigenvector.

Scale Factor

Scale factor for nodal coordinates and displacements. Only active when output Keyword format.

Write

Start writing to file.

Curr

Write data for current state.

Done

Exit File Writing interface.

6.4.13.2. Affixation

Interface Force vector:

Nodal

Write nodal interface force data.

Elem

Write element interface force data.

Append St No

Select to append data to an existing file.

Normalization

Scale factor for the eigenvector stored in D3eigv file.

6.4.14. General Settings

This interface is used to organize general personal display preferences. You can set various quantities for the entire model or for parts.

SPH/Particle

Open SPH/Particle display options interface.

Discrete Sphere Element

Open Discrete sphere element display options interface.

Thickness Scale Factor

Open shell thickness scale factor interface.

Fringe Scale Factor

Open fringe scale factor interface.

Local Coord System

Open local coordinate system interface.

Apply

Apply selected options to model.

Clear

Clear any picked parts from list.

Reset

Reset model to default options.

6.4.14.1. SPH/Particle

This function could set factor to change display of SPH mode. See sample.

Radius Scale

Select SPH radius scale factor.

Sphere divs

Select SPH sphere divisions.

Style

Select SPH sphere style.

Fixed Radius

Keep SPH radius constant.

6.4.14.2. Discrete Sphere Element

Radius Scale

Enter radius scale factor.

Sphere divs

Enter sphere divisions.

Style

Select SPH sphere style.

6.4.14.3. Thickness Scale Factor

This function is to change thickness scale factor. Use the Appearance interface and check Thickfirst.

Whole/Part

Apply to whole/part model.

Thickness Scale Factor

Select thickness scale factor.

Change in Thickness Scale

Select thickness scale factor.

Shell Thickness

Enter shell inital thickness for % reduction fringe.

6.4.14.4. Fringe Scale Factor

Fringe Scale Factor

Enter or select fringe scale factor.

6.4.14.5. Local Coord System

Whole/Part

Apply to whole/part model.

Cart

Local system is cartesian system.

Cyl

Local system is cylindrical system.

Sph

Local system is spherical system.

Import

Click to import coordinate system from keyword file.

Create

Click to create new coordinate system.

Unset

Click to unset the active coordinate system.

6.4.15. Post Settings

This interface is used to organize personal post-processing display preferences. You can set various quantities for the entire model or by parts.

Displacement Scale Factor

Open displacement scale factor interface.

Reflections

Open global reflections interface.

HIC/CSI/BrIC Constants

Open Head Injury Criteria/Chest Severity Index constants interface.

Concrete Crack Width

Open concrete crack width interface.

Coordinate Scale Factor

FLD E'Strain

Toggle FLD Engineering/True Strain.

Local B'Strain

Toggle Local Brick Strain (For solid element strains rotated to assumed local axes - not recommended for normal use).

Apply

Apply selected options to the model.

Clear

Clear and picked parts from the list.

Reset

Reset model to default options.

Sample

See each interface introduction .

6.4.15.1. Displacement Scale Factor

Whole/Part

Apply to whole/part model.

Displacement Scale Factor

Select displacement scale factor.

X/Y/Z

Displacement model in X/Y/Z direction.

6.4.15.2. Reflections

This function is to reflect model about a plane. See sample.

Whole/Part

Apply to whole model. Select the whole model to reflection.

XY

Reflect model about XY plane.

YZ

Reflect model about YZ plane.

XZ

Reflect model about XZ plane.

6.4.15.3. HIC/CSI/BrIC Constants

Time and Gravity constants for Head Injury Criteria, Chest Severity Index, and Brain Injury Criterion calculations.

Time Units

Enter/Select time units.

Gravity Constant

Enter/Select gravity constant.

6.4.15.4. Concrete Crack Width

Min Width

Enter a minimum crack width size.

6.4.16. Vector

This interface is used to display normal vectors for any element in the model.

S1/S2/S3

Switch on/off maximum principal vector.

X/Y/Z

X/Y/Z-component of the vector.

Min

Enter Minimum range value (Hit enter to accept entry).

Max

Enter Maximum range value (Hit enter to accept entry).

Dynamic

A set of min/max ranges is computed for each time state.

Static

A constant min/max range is computed using all time states.

User

Range set by user, enter min/max values above.

Show

Show elements within the range entered above.

SF

Select/Enter scale factor for vector plot.

Hidden line vector off

Switch off hidden line for vectors.

Keep vector display

Keep vector display after leaving menu.

Apply settings in Range

Apply settings in Range dialog, say 'Actively element only', 'Region Min/Max' and 'ident min and max'.

Display highlighted node vel

Display highlighted node velocity vector.

Force resultant

Display resultant for visible force vectors.

Prin. int.pt.

Display principal stress/strain for integration points in solid element.

None

Find out the max(XVex) and min(XVen) throughout all states. Check only one S1, S2 or S3 if prin. stress/strain is selected.

Whole

Apply vector plot to whole model.

Part

Pick parts for vector plot.

Area

Define an area for vector plot.

El/Node

Pick an element or node for vector plot.

Apply

Apply vector plot.

Clear

Clear vector plot.

Save

Save current vectors to file.

Done

Exit Vector Plot interface.