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LS-DYNA V971 R3.2.1 (R3.47756) released

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New version of LS-DYNA is released for all common platforms.

The release provides fixes and extensions.

Features and enhancements included in V971 R3.2.1 that were not available in V971 R3.2 include the following:

 

Elements:

  • Added 1-way slipring
  • Add sliprings' fs and fd as function of time when <0

 

Loads:

  • Added option *LOAD_SEGMENT_SET_ANGLE
  • Add warning in *LOAD_BLAST when segments are too close and empirical equation may no longer be valid

 

Output:

  • MESSAG:
    • Changed the restart name from messag to message#
  • D3PLOT:
    • Added flag to d3plot database to signal LsPREPOST that 4 inplane integration points are output. For 1 point shells 3 null inplane points are output.

 

The remainder of this release notes describes many other enhancements, additions, and fixes made since the release of LS-DYNA version V971 R3.2.

 

General

  • Fix selective mass scaling bug related to element sorting

 

ALE

  • Fix in MPP for certain SPC condition non properly enforced in ALE constrain and penalty coupling

 

Boundary Condition

  • Fix in MPP for certain SPC condition non properly enforced in ALE constrain and penalty coupling
  • Fix in temperature boundary condition nodes due to noise from interpolation

 

Constrained Options

  • Fix initialization of *CONSTRAINED_INTERPOLATION for solid only models.

 

Contact Options

  • Fix for a possible segmentation fault with eroding segment based contact
  • Fix in MPP for initialization problems of some slave node arrays in *CONTACT_ERODING_NODES_TO_SURFACE
  • Fix for THKOPT=2 on Contact Optional Card B is working again
  • Fix in MPP for MPP Tied Contact

 

Control Options

  • Fix memory problem with *CONTROL_SHELL, ESORT=2 when the model contains any *SECTION_SHELL, ELFORM=5 or *MAT_034 (*MAT_FABRIC)
  • Fix selective mass scaling bug related to element sorting
  • Fix in MPP for *CONTROL_MPP_DECOMPOSITION_PARTS_DISTRIBUTE and new keyword *CONTROL_MPP_DECOMPOSITION_PARTSET_DISTRIBUTE
  • Fix for IACOOP=2 filtering. Filter initial conditions were not stored properly, thus affecting accuracy of results

 

Database/Output

  • Fix missing legend in MPP version of matsum file
  • Fix in MPP for drdisp.sif file output
  • Fix for restart ascii files that were missing for any restart run
  • Fix for output formats of belt curves and retractor number
  • Fix for error message for *ELEMENT_BEAM_SECTION
  • Fix for hex weld assemblies so that those generated by *DEFINE_HEX_SPOTWELD_ASSEMBLY go through the assembly failure routine and output to swforc as an assembly instead of individual elements

 

Define options

  • Fix for *MAT_083 with *DEFINE_TABLE and *INCLUDE_TRANSFORM. Strain rates are in Table abscissa are now transformed correctly
  • Fixed hex spot weld assemblies that under certain circumstances were failing at the wrong time.
  • Fix for memory handling of *DEFINE_FUNCTION
  • Fix for hex weld assemblies so that those generated by *DEFINE_HEX_SPOTWELD_ASSEMBLY go through the assembly failure routine and output to swforc as an assembly instead of individual elements
  • Fix for adaptivity when *DEFINE_FUNCTION is used

 

Elements

  • Fixes for user defined solid
  • Fix for *ELEMENT_SEATBELT_SENSOR, which now behaves consistently with the User's Manual
  • Fix for output formats of belt curves and retractor number
  • Fix for error message for *ELEMENT_BEAM_SECTION
  • Fix in slipring definition which happens when more than one slipring is defined in one single *ELEMENT_SEATBELT_SLIPRING

 

Include Options

  • Fix for *MAT_083 with *DEFINE_TABLE and *INCLUDE_TRANSFORM. Strain rates are in Table abscissa are now transformed correctly
  • Fix for *MAT_034 (*MAT_FABRIC) and include transformation of FAC load curve

 

Material Models

  • Fix for Green Naghdi stress rate problem for *MAT_035
  • Fix in keyword reader for *MAT_165. *MAT_COMPOSITE_MSC_DMG now can be read as well as *MAT_COMPOSITE_DMG_MSC or *MAT_162.
  • Fix for FPE in load curve lookup for *MAT_187 (SAMP-1)
  • Fix for *MAT_090 (*MAT_ACOUSTIC) with SMP consistency flag on
  • Fix for *MAT_083 with *DEFINE_TABLE and *INCLUDE_TRANSFORM. Strain rates are in Table abscissa are now transformed correctly
  • Fixed hex spot weld assemblies that under certain circumstances were failing at the wrong time.
  • Fix memory problem with *CONTROL_SHELL, ESORT=2 when the model contains any *SECTION_SHELL, ELFORM=5 or *MAT_034 (*MAT_FABRIC)
  • Fix for *MAT_036 related to out-of-plane shear stress cap
  • Fixes for *MAT_187. Time step calculation now also correct in case BULK and GMOD are not given
  • Fix for *MAT_034 (*MAT_FABRIC) and include transformation of FAC load curve
  • Fix for hex weld assemblies so that those generated by *DEFINE_HEX_SPOTWELD_ASSEMBLY go through the assembly failure routine and output to swforc as an assembly instead of individual elements
  • Fix for *MAT_162 causing improper delamination behavior in elements without a neighbor element

 

Section Options

  • Fix memory problem with *CONTROL_SHELL, ESORT=2 when the model contains any *SECTION_SHELL, ELFORM=5 or *MAT_034 (*MAT_FABRIC)

 

Termination

  • Fix for adaptivity when *TERMINATION_CURVE is used
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