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What's New in LS-PrePost

2009

09-Apr - Tutorial 17 (Metal Forming) updated

01-Mar - Started work on LS-PrePost 3.0 (2.4 will be updated with bug fixes, but new features will be added to 3.0 only)

10-Feb - Added BestFit Interface for evaluating how well a formed part matches an ideal geometry

10-Feb - Added some options (Adjac., Attach) to the General Selection Interface

2008

08-Dec - Updated the Ident Interface to make use of the General Selection Interface

08-Dec - Updated the Blank Interface to make use of the General Selection Interface

21-Nov - Added support for multiple integration points per layer for *ELEMENT_SHELL

21-Nov - Added ability to display section force vectors on a model while plotting SECFORC data using the ASCII Interface (with D3PLOT files loaded)

21-Nov - Added ability to write relative *BOUNDARY_PRESCRIBED_MOTION curves using the Trace Interface while a Follow point/plane is set

21-Nov - Added support for reading PAM-CRASH input files

21-Nov - Added ability to display the following set types using Page D: *SET_BEAM_ADD, *SET_DISCERET_ADD, *SET_NODE_ADD, *SET_NODE_ADD_ADVANCED, *SET_PART_ADD, *SET_SOLID_ADD, *SET_SEGMENT_ADD, and *SET_SHELL_ADD

21-Nov - Added support for some additional keywords: *BOUNDARY_RADIATION_SEGMENT_VF_READ, *BOUNDARY_RADIATION_SEGMENT_VF_CALCULATE, *BOUNDARY_RADIATION_SET_VF_READ, *BOUNDARY_RADIATION_SET_VF_CALCULATE, *BOUNDARY_RADIATION_SET_EF_READ, *BOUNDARY_RADIATION_SET_EF_CALCULATE, *LOAD_SEGMENT_SET_ANGLE, *MAT_MCCORMICK (*MAT_167), amd *MAT_POLYMER (*MAT_168)

18-Sep - Started work on LS-PrePost 2.4 (2.3 will be updated with bug fixes, but new features will be added to 2.4 only)

18-Aug - Added Roller Hemming interface (accessible through the Applications Menu)

18-Aug - Added Project curves to elements option to the Curves Interface

18-Aug - Added ability to pick a line endpoint to define a coordinate system

18-Aug - Added 2D ALE post-processing capabilities: display Iso surface, fringe fluid material groups, and plot group histories

18-Aug - Added thermal analysis post-processing capabilities: plot histories and fringe rate of change of temperature per node

18-Aug - Added ability to display any combination of principal stress and strain vectors (X, Y, and/or Z)

18-Aug - Added support for reading DCFAIL in the ASCII Interface

18-Aug - Added support for reading and displaying Altair binary format files

18-Aug - Improved efficiency of binary INTFOR processing (minimized memory requirements for plotting nodal force histories and fixed treatment of surfaces with multiple contacts to account for displayed surfaces only)

18-Aug - Added automatic clipping for cross plotting curves with a differing time basis

18-Aug - Added support for some additional keywords: *BOUNDARY_PRESCRIBED_ORIENTATION_RIGID_VECTOR, *CONTACT_TIEBREAK_SURFACE_TO_SURFACE_ONLY, *DATABASE_DCFAIL, *DATABASE_ELOUTDET, *DATABASE_BINARY_BINOUT, *DATABASE_BINARY_BLSTFOR, *DATABASE_ATDOUT, *DEFINE_CONNECTION_PROPERTIES, *DEFINE_CONNECTION_PROPERTIES_ADD, *DEFINE_HEX_SPOTWELD_ASSEMBLY, *ELMENT_BEAM_SECTION_ORIENTATION, *ELMENT_MASS_MATRIX, *ELMENT_MASS_MATRIX_NODE_SET, *INITIAL_AXIAL_FORCE_BEAM, *INITIAL_CESE_CONSTANT, *LOAD_SEGMENT_SET_ANGLE, and *MAT_SPOTWELD_DAIMLERCHRYSLER (*MAT_100_DA)

29-May - Added MetalForming Application tutorial

26-May - Added MassTr Interface

26-Mar - Added visualization of *AIRBAG_REFERENCE_GEOMETRY on Page D

18-Mar - Updated the Trace Interface to make use of the General Selection Interface

12-Mar - Updated the Toggle Menu with a more intuitive "check" system

29-Feb - Added coincident node picking and made node/element picking significantly faster and easier. More details...

23-Jan - Added Split Solid option to the ElEdit Interface to allow splitting of hex and penta elements

01-Jan - Started work on LS-PrePost 2.3

2007

26-Nov - Added Shell intersect option to the Curves Interface to create curves at the intersection of shell parts

21-Nov - Moved Shift/Ctrl options from the General Selection Interface to a Rendering Hot-Button

21-Nov - Added some options (Frin, Plan) to the General Selection Interface

27-Sep - Added Morph Interface

24-Sep - Updated the Blank Interface to make use of LS-PrePost's growing General Selection capabilities

14-Sep - Added some options (Sphe, Box, Prox, Circ) to the General Selection Interface

18-Jun - Tutorial 6 updated to include new LSTC Hybrid III Rigid 50th Percentile Dummy

14-May - Added Recent file list to the File Menu

01-May - Started work on LS-PrePost 2.2

23-Apr - Added an updated User Guide and set of Examples for the BlockM Interface

19-Mar - Tutorial 17 added to online documentation (Intro to MetalForming Interface)

10-Mar - Added Record Orient option to the Toggle Menu to suppress writing of orientation commands to the Command File

28-Feb - Tutorial 16 added to online documentation (Intro to Block Mesher)

24-Feb - Update of SphGen Interface

11-Feb - Added support for the *SENSOR keyword

10-Feb - Removed obsolete functions from Page 2 (Clipp) and Page 7 (IcemHex and IGES)

2006

10-Dec - Added Delete Degenerated Elem option to the DupNod Interface to allow control over deletion of degenerated elements

01-Dec - Added a few Animated Demos to the Tutorials section

26-Nov - Added scroll wheel zooming as a standard Mouse Operation

22-Nov - Added some Mini Tutorials to address specific topics

16-Nov - Added asksave option to the Configuration File

15-Nov - Added Save Keyword As option to the File Menu to standardize file save behavior

05-Nov - Tutorial 15 added to online documentation

30-Oct - Tutorial 14 added to online documentation

26-Oct - Update of Configuration File information

25-Oct - Tutorial 13 added to online documentation

21-Oct - Update of Surface Interface

18-Oct - Tutorial 12 added to online documentation

17-Oct - Updated SCRIPTO API resources

16-Oct - Tutorial 11 added to online documentation

12-Oct - Tutorial 10 added to online documentation

11-Oct - Update of nLMesh Interface

10-Oct - Added QuickBeam option to the ElEdit Interface to allow convenient creation of 2-noded beams

09-Oct - Added Direction option to the ElEdit Interface to modify element orientation

04-Oct - Major update to the form and functionality of the LS-PrePost Google Group

21-Sep - Tutorial 9 added to online documentation

20-Sep - Enabled pre-filtering for HIC/CSI calculations using the ASCII Interface

19-Sep - Enabled Function Keys for panel navigation and command file execution

11-Sep - Added search function (powered by Google)

28-Aug - Added Discrete option to theElEdit Interface under Element > Create

25-Aug - Added *Keyword Interface

21-Jul - Added Smooth Interface for mesh smoothing

22-Jun - Added To Surface option to the Project Interface

20-Jun - Overhaul of 2Dmesh Interface to improve usability

15-Jun - Established Google Groups for general LS-PrePost discussion and SCRIPTO related topics

30-May - Tutorial 8 added to online documentation

26-May - Tutorials 6 and 7 added to online documentation

19-May - Tutorial 5 added to online documentation

14-May - Tutorial 4 added to online documentation

26-Apr - Added Print Version button to each page that links to a printer-friendly version of the main content

18-Apr - Added Keep Seed Elements option to the PTrim Interface

04-Apr - Added Solid By:2 Shell Sets option to the ElGen Interface

27-Mar - Added preliminary SCRIPTO API information

23-Mar - Tutorials 1-3 added to online documentation

16-Mar - FAQ added to online documentation

14-Mar - Added Along Arbitrary Vector option to the Project Interface

09-Jan - LS-PrePost 2.1 Recently Added Features

  • Page 1

  • Anno
  • Annotation arrows can be constrained to always point at a specific node

  • SelPar, Fluid
  • For displaying fluid surfaces from ALE simulations of airbags and fuel sloshing type simulations

  • Fcomp, Misc Fluid Components
  • These components have better description compared to before which was history variable 1,2,3,...

  • Output, Fluid Surface
  • Allows writing a keyword file of fluid surface at any state for further processing like fluid profile comparisons

  • Follow, Select Model
  • Allows selection of model to select follow node or plane

  • Splane
  • Lagr option cuts a section at time zero and allows section animation even if elements do not cross the plane
  • Off/Clip+/Clip- clips model in front of and behind the plane
  • Solid elements are now capped for proper display
  • Section cut animation has same controls as normal animation
  • Line plots can now handle holes in parts (important feature for metal forming)
  • Options - Allows thickness plotting in section cuts and also vector plotting of velocities/displacements

  • Color
  • Fringe colors can now be user-defined for each fringe level

  • State, Fringe Diff State
  • Select a state number for fringing of fringe = fring state n - fringe Diff state

  • Measur
  • Disp P2P - allows measuring distance from point to point by rubberbanding
  • Point is a point anywhere on the element surface (not a node)
  • Angle 3node, Angle 4node in pre-processing as well as post-processing
  • Separation - Fringing of separation between 2 parts
  • Measurement of coordinates with distance in local coordinate system

  • ASCII
  • Multiple file loading from multiple runs

  • Model
  • Interface has been simplified for handling multiple models

  • Page 2

  • Renum
  • Renumbering of entities in range has been improved

  • Elgen
  • Creation of shells from solid surface
  • Creation of shells from solid faces
  • Creation of shell by dragging edges
  • Creation of shells by spinning edges.
  • Creation of shells by dragging a curve (line)
  • Creation of shells by spinning a curve (line)
  • Creation of shells from segment sets
  • Creation of 10 node tetras from 4 node tetras
  • Convering hexas to tetra elements
  • Creating solids by dragging shells
  • Creating solids by offseting shells
  • Creating solids by spinning shells
  • Creating solids from shells


  • Rotate, Trnsfrm, and Reflect
  • *INITIAL_STRESS and *INITIAL_STRAIN are now adjusted by these operations

  • Project
  • Project nodes to curve
  • Project nodes to mesh with optional offset from mesh
  • 2 projection methods: Closest 3D and Vector

  • Curves
  • Blank/Create/Modify/Delete/Load/Save curves (lines)

  • PTravel
  • Position of parts in global and local directions
  • Option to Allow rotation of moving part (main application is metalforming but has many other potential uses)

  • Refchk
  • Finding unreferenced entities in model
  • Finding referenced entities
  • Finding attached entities
  • Finding undefines entities
  • Option to write partial models as keyword file

  • Ptrim
  • Part trimming based on trim curves (mainly for metalforming applications)
  • Supported curve formats: xyz data, IGES, and VDA
  • 2 methods of trimming: closest 3d projection and vector projection
  • Option to move/delete trimmed elements
  • Trim direction has been extended from global xyz to very general "vector"
  • Handles trimming of dynain files as well as adaptive models

  • Page 5

  • Conchk (previously Inipene)
  • Tied contact checking
  • Undo Flip function
  • Initial penetration checking and fixing

  • BeltFit
  • Seatbelt fitting support for Simple 1D and Mixed 1D and shell belts

  • IniVel
  • Initial velocity generation has been extended from just global directions to:
  • Local Directions / Along Vector / Angular/ Angular+Translational
  • These options allow easy generation of velocities for door and hood slam analysis as wells as many general applications

  • Page 7

  • Mesh
  • Solid and shell box
  • Solid and shell sphere

  • Surface
  • Blanking and moving of CAD surfaces

  • SurMesh
  • Importing of CAD surface data in IGES and VDA format
  • Surface meshing methods (Amesh and Tmesh)
  • Amesh is topology mesher for structural meshing
  • Tmesh is for tool meshing for metalforming applications

  • SWGen
  • Failure parameters (NRR, NRT, NRS) on *MAT_SPOTWELD can be calculated based on the material yield strength
  • Spotwelding of models using masterweld files in various formats (XML, MWF, Primer, Custom)
  • Multiple spotweld types (Beam, 1-Hexa, 4-Hexa)
  • Nugget diameter options (Constant, Curve Defined, Thickness vs Diameter, Built-in)
  • Proper handling of rigid bodies in *CONTACT_SPOTWELD creation

  • 2Dmesh
  • 2D geometry creation and 2D meshing using various meshing techniques including magic mesher from maze

  • TetMesh
  • Tetmeshing from hex or shell skin meshes
  • Remeshing for tetmeshing

  • ChainM
  • This allows chaining of d3plot file series into a single animation
  • Applications: Chaining 3 stages run separately into one continous animation (Ex: gravity/explicit/springback)

  • DieLine
  • Similar to ChainM but more specialized for metal forming dieline analysis like dieline transfer simulations

  • Peneck
  • Penetration checking for forming applications like dieline analysis

  • SQual
  • Surface quality plotting for metalforming applications
  • Inspection of surface quality typically after drawing operation

page end
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