LS-TaSC 3.0

Version 3 was started in spring of 2012 focusing on free surface design as well as imbedding the LS-TaSC product into the LS-PrePost framework. Version 3 is an important step forward containing the following major new features:

•  Free surface design of solids including
  • Geometry definitions
    • Extrusions
    • Symmetry
    • Edge smoothing
  • Automatic mesh smoothing
• Integration into the LS-Prepost framework. This is a long term project which at this stage includes:
  • Expanding the previous GUI capabilities for free surface design
  • The model tree on the left on the screen allowing quick navigation of the LS-TaSC model
  • Picking of parts and surfaces
  • Integrated editing of the LS-DYNA FE model to create surfaces, coordinates systems, and other entities required for the LS-TaSC design.

Some minor features are:

• Support of *MAT_ORTHOTROPIC_ELASTIC for the topology design of solids.
• Support of the d3part database for reading field results.
• The LCSS curve option of *MAT_PIECEWISE_LINEAR_PLASTICITY is now supported.
• Checking and adding the LS-Dyna binary output requests required for constraints
• The iteration count now starts at 0, with iteration 0 being the initial design provided by the user.
• The Material Utilization plot is now scaled with the value of the target field value. A value larger than 1 indicates that an element is highly used, while a value smaller than 1 indicates that an element is lightly used.
• Existing lst_output.txt files will be copied to a new name, instead of being appended to, if the environment variable LSTASC_SEPARATE_OUTPUT is set.