! ######################################################################### ! ### ### ! ### This file contains notes about the Simulation Application ### ! ### in this release. ### ! ### ### ! ### Meshing ### ! ### NASTRAN false Jacobian check failure ### ! ### Element modification when Model Checks is ON ### ! ### Laminates ### ! ### Help on context failures ### ! ### Laminate modify permits incorrect material selection ### ! ### NX NASTRAN Task ### ! ### Input file specification that is not the I-deas run directory ### ! ### ABAQUS Input File Reader ### ! ### Reference to non-existing nodes/elements crashes I-deas ### ! ### Elements/properties import failure ### ! ### ABAQUS Results Import ### ! ### Direct import fails if results contain beam elements ### ! ### ASCII results import of files created on Windows ### ! ### NASTRAN Export ### ! ### Program files and PARAM definitions ### ! ### Inactive boundary conditions set selection UI ### ! ### Multiple load sets in a response dynamics solution ### ! ### Export of GRIDs in F8.1, F8.2 and F8.3 formats ### ! ### SOL 111/108 excitation function creation units ### ! ### Clearing subcase does not decrement subcases total ### ! ### NASTRAN Results Import ### ! ### Incorrect beam element forces in NASTRAN viewer mode ### ! ### Import of stresses from SOL 106 ### ! ### TMG Thermal Analysis ### ! ### Memory requirements (FORTRAN workspace) for the processing ### ! ### of simulation groups ### ! ### Hemiview only works in True Colour mode ### ! ### Hemicube fails when Workspace switched ### ! ### User Subroutines: Setting the Environmental Variables for NT ### ! ### Background solves don't work on NT ### ! ### Wrong units conversion for free convective additional ### ! ### conductances ### ! ### Electronic System Cooling ### ! ### Memory requirements (FORTRAN workspace) for the processing of ### ! ### geometry-based Boundary Conditions ### ! ### Problems with PEX Mesher ### ! ### ### ! ######################################################################### ########################################################################### Meshing --------------------------------------------------------------------------- NASTRAN false Jacobian check failure The new model checks for NASTRAN include GEOMCHECK eleement quality checks performed by NASTRAN. The checks are intended to highlight elements as red when their GEOMCHECK results indicate values that would prevent a NASTRAN solve from completing. These model checks include a Jacobian check on solid elements. The Jacobian check is performed at both the element corner nodes and element integration points. A failure at the integration points will cause the NASTRAN solve to fail, while a failure at the corner nodes alone will not fail the NASTRAN solve. In some instances the Jacobian model check will identify an element as red (leading to a failed solve) even when the Jacobian at the integration points are sufficient for the solve. Therefore the model checks is incorrectly identifying the element as red. Jacobian related failures during a NASTRAN solve normally can be resolved by straightening parabolic solid element edges. --------------------------------------------------------------------------- Element modification when Model Checks is ON Element modification commands will run significantly slower when any of the Model Check element quality options are turned ON. This can be a problem on large models due to the increased time required to modify the elements. Avoid this problem by turning OFF Model Checks before modifying element geometry with commands such as Fix Included Angle, Modify Element Order, and Relax Warp. ########################################################################### Laminates --------------------------------------------------------------------------- Help on context failures Help on context buttons do not work properly for the following new forms: Laminate create/modify Laminate properties Enter ply data Create ply material Halpin-Tsai theory options Laminate sketcher Help on context for the following items can be found by selecting help on the appropriate icon: Laminate create/modify Create ply material Laminate Sketcher This bug will be fixed in I11m1. Since the new forms run from an application that is external to I-deas, users may obtain a fixed laminat.dll or laminat.so from MAYA by contacting support@mayahtt.com. --------------------------------------------------------------------------- Laminate modify permits incorrect material selection When modifying a laminate stack, the software lets the user select for a ply the material that the laminate stack references. This results in an unresolvable circular reference. The software should prevent the user from selecting the laminate stack's reference material as a ply material. ########################################################################### NX NASTRAN Task --------------------------------------------------------------------------- Input file specification that is not the I-deas run directory When the user runs a NASTRAN solve from the NX NASTRAN task, I-deas submits the NASTRAN solve with a "DBS" argument if the input file location is not the I-deas run directory. The "DBS" argument redirects database files to the desired directory. The argument conflicts with the "SCRATCH=YES" argument: in fact, it makes no sense to write the "DBS" argument if the user does not want scratch files stored after the solve. The "DBS" argument should not be written when the user inputs "SCRATCH=YES". This bug will be fixed in I-deas 11m1. ########################################################################### ABAQUS Input File Reader --------------------------------------------------------------------------- Reference to non-existing nodes/elements crashes I-deas I-deas will crash while reading an ABAQUS input file if the file contains references to non-existing nodes or elements. This is fixed in I-deas 11m1. --------------------------------------------------------------------------- Elements/properties import failure Elements that do not have physical properties defined in the ABAQUS input file will not be read into I-deas. Physical properties that do not have an element block associated with it will also not be read into I-deas. These problems are fixed in I-deas 11m1. ########################################################################### ABAQUS Results Import --------------------------------------------------------------------------- Direct import fails if results contain beam elements The direct import of ABAQUS results will fail if the results file contains results on beam elements. The workaround is to use indirect import of the results. This will be fixed in I11m1. --------------------------------------------------------------------------- ASCII results import of files created on Windows The ABAQUS importer is unable to read ASCII results files created on Windows. The workaround is to remove the "^M" characters at the end of each line, or to use the binary results file. This will be fixed in I11m1. ########################################################################### NASTRAN Export --------------------------------------------------------------------------- Program files and PARAM definitions The creation and use of program files fails when trying to define NASTRAN PARAMs that may be defined as integer values from pull-down menus. The workaround is to use the OTHER option and define the PARAM manually. This bug will be fixed in I11m1. --------------------------------------------------------------------------- Inactive boundary conditions set selection UI In the Case Control form for a response dynamics solution, if the user selects Clear or Clear All for subcase definition, then the boundary conditions set selection UI will become inactive. The user will be unable to select a boundary conditions set. The user must then exit the form and re-enter to be able to select a boundary condtions set. This will be fixed in I11m1. --------------------------------------------------------------------------- Multiple load sets in a response dynamics solution If the boundary condtions set used for a response dynamics solution contains more than one load set, then ...
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