A Highly-tuned Modeling Environment                              for Crash Analysis and Safety EvaluationGiuseppe RestaAlt...
HyperCrash: Presenter IntroductionGiuseppe Resta                  •     Business Development Manager for Crash and Safety ...
Software Download Page: Updates added regularly                                 www.altairhyperworks.comAltair Proprietary...
HyperCrash: Support of Transformation for LSDYNA• HyperCrash provides a way to apply a geometric transformation to an LS-D...
HyperCrash: Support of Transformation for LS-DYNA• HyperCrash also covers complex scenarios defined by:• Multiple instance...
HyperCrash : Improved Coverage for Submodel  • Enhanced support for SUBMODEL with control for ID offset now available  • G...
HyperCrash : Connectivity/Find Attached• A new connectivity feature is available for LS-DYNA.• HyperCrash identifies as at...
HyperCrash : Dummy Positioning• Undo capabilities to restore initial conditions for individual limb or for the entire dumm...
HyperCrash: Part Replacement    •   Accurate replacement covering of all keywords    •   Detailed status report for each e...
HyperCrash: Part Replacement•    Two options in replacement         •    Single part “Mesh Only” to replace just nodes and...
HyperCrash: Connections•    Solid Spotwelding modeled using single HEXA or a cluster of 4, 6, 8, 12 and 16 combined solids...
HyperCrash: LS-DYNA Mass Calculation•    HyperCrash offers now an accurate mass calculation for LS-DYNA•    Mass informati...
HyperCrash: New LS-DYNA Mass Balancing•    Mass Balancing can be performed by modifying the location of     the Center of ...
HyperCrash: Target Mass Matching•    The user may define Target Mass for Parts and Assemblies by direct input or by extern...
HyperCrash: Contour Quality Check•    Quality/Contour check uses colors to differentiate between parts based on different ...
HyperCrash: Software Failure Detection•    Great effort is placed to maximize stability in the application.•    Additional...
HyperCrash: Other Enhancements•    Model accuracy is enhanced by real time checks of the mandatory fields essential to run...
HyperCrash: Other Enhancements for LS-DYNA•    Results Mapper is now available for LS-DYNA profile•    Proper coverage of ...
HyperCrash: Other Enhancements for RADIOSS•    Many RADIOSS panels are now enhanced:         •    Dynamic review is now av...
LS-DYNA: Support of *Parameter        • *Parameter supported for thousands of attributes in hundreds of LS-DYNA cards:    ...
LS-DYNA: GUI examples for *Parameter •    Powerful and intuitive panels to create and modify parameters.  Creation of Para...
HyperCrash: Support for initial reference conditions •    Reference geometry cards are listed in the browser and also have...
HyperCrash: New BOM assembly tool •    A bill of material “csv” file read to link mat, prop, thickness to PARTs or to crea...
RADIOSS: Support of local units•    Local units can be defined for objects such as cload, cnode, grav, impacc, inivel, int...
RADIOSS: Support of control cards •    Create, edit, import and export is now available •    Engine and Starter control ca...
RADIOSS: Miscellaneous •    New RADIOSS 11.0 user profile •    New RADIOSS Tools pull down •    Improved LS-DYNA to RADIOS...
LS-DYNA: Miscellaneous •    Part selection is now improved allowing selection of only compatible types •    Enhancements i...
HyperCrash: Miscellaneous  •    Part title and proximity used for guidance in subsystem replacement  •    New edit option ...
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A Highly-tuned Modeling Environment for Crash Analysis and Safety Evaluation

  1. 1. A Highly-tuned Modeling Environment for Crash Analysis and Safety EvaluationGiuseppe RestaAltair EngineeringNovember 2011Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  2. 2. HyperCrash: Presenter IntroductionGiuseppe Resta • Business Development Manager for Crash and Safety • M.S. Mechanical EngineeringHistory with Altair • 12 Years with Altair • Technical Support Engineer • Crash Solver Specialist • HyperWorks Program Manager for Crash • HyperCrash Program ManagerAgenda* • New Features demonstration (10 minutes) • Q/A 5 minutes*Presentation based on released HyperCrash 11.0 401 and soon to be released HyperCrash 11.0-402 Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  3. 3. Software Download Page: Updates added regularly www.altairhyperworks.comAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  4. 4. HyperCrash: Support of Transformation for LSDYNA• HyperCrash provides a way to apply a geometric transformation to an LS-DYNA include file or to a set of nodes• HyperCrash fully support *Include_Transform *Define_Transformation and *Node_Transform• HyperCrash allows easy creation, review and modification for such models. Also changes to any transformation are applied real time.Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  5. 5. HyperCrash: Support of Transformation for LS-DYNA• HyperCrash also covers complex scenarios defined by:• Multiple instance of the same model• Id offset and Scaling Multiple Instances Offset control and setup for TransformationAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  6. 6. HyperCrash : Improved Coverage for Submodel • Enhanced support for SUBMODEL with control for ID offset now available • GRNOD and other RADIOSS groups are now supported for //SUBMODELGroup of Submodel created fromselection in model browser Control for ID offset Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  7. 7. HyperCrash : Connectivity/Find Attached• A new connectivity feature is available for LS-DYNA.• HyperCrash identifies as attached parts, also the ones connected with special entities such as: • *CONSTRAINED_EXTRA_NODE, *CONSTRAINED_RIGID_BODIES • *CONTACT_TIED, *CONTACT_SPOTWELD Connectivity types taken into account Connectivity and mask toolbarAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  8. 8. HyperCrash : Dummy Positioning• Undo capabilities to restore initial conditions for individual limb or for the entire dummy.• A new Positioning File that can be exported and later retrieved to automatically reposition the dummy using a batch process.• Database Access Configurable Database Access Undo and Batch Process ControlAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  9. 9. HyperCrash: Part Replacement • Accurate replacement covering of all keywords • Detailed status report for each entity • Fully replaced • Partially replaced • Not replacedThe System “CID” is not replaced and the entity linked to itare shown in red [not replaced] or orange [partially replaced] Example of Part Replacement Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  10. 10. HyperCrash: Part Replacement• Two options in replacement • Single part “Mesh Only” to replace just nodes and elements • Entire Subsystem substitutes new parts and their attributes• Two mechanisms adopted in replacement • Proximity search of closest node • Replace all nodes in a part• The Replace Report also can be used to Show, Hide or Edit objects Replace process with Report and optional editingAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  11. 11. HyperCrash: Connections• Solid Spotwelding modeled using single HEXA or a cluster of 4, 6, 8, 12 and 16 combined solids, for RADIOSS [starting with 10.0-SA-205] and LS-DYNA• Continuous glue modeling is now possible with different number of elements in width and height• User control is available to parameterize element size, failure criteria and contact used for both 1D and 3D welds• Spotweld can be optionally created using a single material and property, instead of individual ones for each logical connection Glue with contiguous hexa modeling Spotwelding with 1,4, 8, 12 or 16 cluster of solid elementsAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  12. 12. HyperCrash: LS-DYNA Mass Calculation• HyperCrash offers now an accurate mass calculation for LS-DYNA• Mass information reported following LS-DYNA d3hsp file format structure: • Total Mass • Part Mass • Structural Mass • Non structural Mass • Lumped Mass Mass Part DetailsAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  13. 13. HyperCrash: New LS-DYNA Mass Balancing• Mass Balancing can be performed by modifying the location of the Center of Gravity [COG]• The Total Mass can be calculated ignoring the contribution of lumped masses• The user can set some of the parts as ‘not active’ during the mass adjustment. Lumped masses will not be added on them, but the total mass of the part selection will still be matched Lumped Mass Distributed Mass Balancing with COG controlAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  14. 14. HyperCrash: Target Mass Matching• The user may define Target Mass for Parts and Assemblies by direct input or by external file reading• A new function distributes lumped masses to Match Target Mass value specified keeping the Parts COG unchanged• HyperCrash has the ability to create mass of general types or special ones used to represent a missing system in the model or masses created during the balancing process Target Mass: Definition and Matching Capabilities HyperCrash offers proprietary modeling formats for LS-DYNA MassesAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  15. 15. HyperCrash: Contour Quality Check• Quality/Contour check uses colors to differentiate between parts based on different display attributes: • Young module • Density • Yield Stress • Max Stress • Material Law • Thickness Suspicious asymmetries detected Parts grouped in browser Young module representation by common valueAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  16. 16. HyperCrash: Software Failure Detection• Great effort is placed to maximize stability in the application.• Additional protection is added by automatically saving the model, if the software fails unexpectedly• The saved session can be restored at the next start-up Emergency save Previous session can be recoveredAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  17. 17. HyperCrash: Other Enhancements• Model accuracy is enhanced by real time checks of the mandatory fields essential to run an analysis• Improvement in the GUI of the export selection• RELATIVE or ABSOLUTE PATH for Include• Add option to merge an imported file as Include• New Standard GUI layout offered at startup Example of mandatory fields for Element_Seatbelt_Acceleromenter Absolute Relative Path for Include 3 GUI Themes availableAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  18. 18. HyperCrash: Other Enhancements for LS-DYNA• Results Mapper is now available for LS-DYNA profile• Proper coverage of an LS-DYNA penetration check• Improvement of the BOX panel is now offered• Enhancement for *INCLUDE with support of: • *INCLUDE_PATH • *INCLUDE_STAMPED_PART • *INCLUDE_NASTRAN • Support of long directory path for LS-DYNA Include X-Y-Z value of nodes rearranged to be compatible with LS-DYNA requirement Result MapperAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  19. 19. HyperCrash: Other Enhancements for RADIOSS• Many RADIOSS panels are now enhanced: • Dynamic review is now available in a list using the up and down arrows on the keyboard • Multiple items can be selected holding the left mouse and scrolling the mouse • A new review capability is available using the right-click option• Improvement in Selection: • Validation by right-clicking the mouse is now offered to complete processes such as: selection of items within the graphics area, with great reduction in mouse travel • This is in addition to pressing the ‘OK’ button or the ‘Y’ key on the keyboard• Enhancement in renumbering. Part and subset are no longer grouped together in the renumbering panel Some of the enhancements Part and Subset are shown in the new Panels separately in renumberingAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  20. 20. LS-DYNA: Support of *Parameter • *Parameter supported for thousands of attributes in hundreds of LS-DYNA cards: • from simple thickness and element formulation, to nodes ID or its X Y Z coordinates • from *Include_Transformation, to points in a *Define_Curve *NODE: its ID or x y z coordinates can be parameterized Similarly initial velocity direction and magnitude Section Shell: parameters for thickness and elem formulation. Both the parameter name and its actual value are shownAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  21. 21. LS-DYNA: GUI examples for *Parameter • Powerful and intuitive panels to create and modify parameters. Creation of Parameter: INT or FLOAT Disassociation of a parameter or the selection of existing one from right clickAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  22. 22. HyperCrash: Support for initial reference conditions • Reference geometry cards are listed in the browser and also have a graphic representation. • The seat deformer tool may now also generates reference state. Initial geometry shown in the browser Click the check box to create reference state automaticallyAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  23. 23. HyperCrash: New BOM assembly tool • A bill of material “csv” file read to link mat, prop, thickness to PARTs or to create the part<>assembly structure or to distribute mass to match a target value. • A pop-up shows additional settings likr tasks to perform and location of mat/prop databases. Read or export the BOM from the model browser Pop-up used to setup for model Assembly Format of the comma separated BOM file.Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  24. 24. RADIOSS: Support of local units• Local units can be defined for objects such as cload, cnode, grav, impacc, inivel, inter and pload.• Mass, length and time units can be individually set using numerical scale factor or alphabetical syntax.• Units are also supported for //SUBMODEL When a local unit exists, an additional cell will appear in the object page to select it The “time” global unit is scaled 100 times for the object using this local unitAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  25. 25. RADIOSS: Support of control cards • Create, edit, import and export is now available • Engine and Starter control cards are exported into a single file Flexibility to list active/all control cards and group them by type Detailed description for each attribute.Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  26. 26. RADIOSS: Miscellaneous • New RADIOSS 11.0 user profile • New RADIOSS Tools pull down • Improved LS-DYNA to RADIOSS conversion • Many improved panels like material, property, contact, gravity.. • Part and subset can now be renumbered separately • Solver names are shown together with an attribute description • Model checker now detects invalid optionsNew pull down Solver names are shown for added clarity New RADIOSS property panelAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  27. 27. LS-DYNA: Miscellaneous • Part selection is now improved allowing selection of only compatible types • Enhancements in the setup of rigidwall and database cross section • Direct selection of existing *SET in panels • New graphic representation for Beam defined by coincident nodes • Additional HyperCrash attributes shown for PART • Different Icons shown based on PART type Other HyperCrash attributes for part Composite, rigid and initialized part iconsAltair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.
  28. 28. HyperCrash: Miscellaneous • Part title and proximity used for guidance in subsystem replacement • New edit option for all entities available in model browser • SPH elements have now a pull down and a faster rendering • Many panels now show additional ID and title cells • More powerful show info in toolbar • Control over ID assignmentDifferent criteria offered for ID assignment New edit option in browser New element info pop-up Altair Proprietary and Confidential Information V01 Copyright © 2011 Altair Engineering, Inc. All rights reserved.

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