LS-DYNA Interface

New Features

Contact Penetrations Check from Solver output files
  • This new feature in the Penetration Check Tool allows directly reading the contact penetrations written by the solver in the messag or d3hsp files
  • The penetrations are then populated in the Penetration Check Browser and fixed using the functionalities of the tool
  • This new feature is activated by the new option "Check method" in the Penetration Check Entity Editor


    Figure 1.
Time Step Mass in Mass Summary Tool
  • A new option in the Mass Summary Tool enable the calculation of the solver numerical added mass due to the elemental time step
  • From the guide bar, click and select the Consider Time Step Mass checkbox.


    Figure 2.
  • The corresponding Time Step Mass column and total values are then display in the UI:


    Figure 3.
New Initial State Entity
  • The INITIAL_STRESS_(OPTION) and INITIAL_STRAIN_(OPTION) keywords are migrated to the new Initial State entity
  • The Initial State Entity is used to import and export the INITIAL_STRESS_(OPTION) and INITIAL_STRAIN_(OPTION) keywords, but not for creation or edition of the data in the session

Enhancements

New Keywords supported
  • Constrained Keywords: CONSTRAINED_SPR2
  • Contact Keywords: CONTACT_2D_AUTOMATIC_(OPTION) and CONTACT_FORCE_TRANDUCER_ID
  • Control Keywords: CONTROL_FORMING_TRIMMING, CONTROL_ACOUSTIC_SPECTRAL, CONTROL_ACOUSTIC_COUPLING, and CONTROL_IMPLICIT_SSD_DIRECT
  • Material Keywords: MAT_SPRING_MUSCLE and MAT_EXTENDED_3-PARAMETER_BARLA
Updated Keywords as per R13.1 manual
  • Airbag Keywords: AIRBAG_PARTICLE
  • Constrained Keywords: CONSTRAINED_NODAL_RIGID_BODY
  • Control Keywords: CONTROL_ACCURACY, CONTROL_TERMINATION, CONTROL_SHELL, CONTROL_IMPLICIT_EIGENVALUE, and CONTROL_IMPLICIT_SOLVER, CONTROL_ADAPTIVE
  • Database Keywords: DATABASE_BINARY_D3PLOT, DATABASE_BINARY_D3DUMP, DATABASE_BINARY_DEMFOR, and DATABASE_BINARY_INTFOR, DATABASE_EXTENT_BINARY
  • Interface Keywords: INTERFACE_SPRINGBACK_(OPTIONS)
  • Section Keywords: SECTION_SOLID
Elements Entity Editor
The description of the Elements Entity Editor is updated and aligned to the solver manual description
Solver Mass Entity
The node selector is activated in the entity table

Resolved Issues

  • Drive Mapping now considers INCLUDE_PATH when defined in the deck
  • ELEMENT_MASS defined on free node in old HM binary file are correctly converted to Solver Mass entity
  • Correction of transformations calculation using POINT definition. Previous transformations are now correctly applied on the POINT coordinates
  • Correction in reading MAT_SAMP-1 when followed by a PGP encryption block
  • Correction of SET_PART_TREE format in exported deck, when more than 8 entities are referenced
  • If the EC attribute is not used in MAT_FABRIC and it is defined in a deck, it will be read and maintained on export
  • In Material keywords with AOPT attribute, if any attribute is defined but not compatible with the AOPT value, those attributes will be read and maintained on export
  • Some entities, like Accelerometers, are automatically renumbered when an ID conflict is detected.
  • Correction of the dynamic graphical update of CONSTRAINED_NODAL_RIGID_BODY when updating the secondary node set in case of SET_NODE_ADD
  • Correction of graphical visualization of CONTACT involving PART of BEAM elements. The 3rd node of the beam is no longer taken into account
  • SET_NODE referenced in CONSTRAINED_INTERPOLATION is no longer found as unused
  • Model checker check "Tied contacts having common nodes" correctly considers only contact of type Tied