Release Notes for Version 970/Revision 6763.169
                      November 28, 2005
   (Highlights of modifications made since release of revision 6763.086)



_________________________ Material models ______________________________

Extended type 6 hourglass control to type 1 solid element materials
13, 16, 72, 163, 198, and 200.

Fixed bug affecting use of large load curve IDs for mat_120.

Made a bug fix to mat_158.

Fixed format error for *MAT_THERMAL.

Made fix to mat_057 related to large load curve IDs.

Made minor fix to mat_036 related to initial stress option.

Fixed variable initialization bug in mat_181.


_________________________ Element formulations _________________________

Updated damping related to the Belytschko-Schwer beam.

Added support for EOS 12 for Lagrangian solids. 

Fixed a bug in shell type 16 for linear analysis.

Fixed a bug in shell type 21.


_____________________________ Contact __________________________________

Made improvements to contact_auto_move.

Fixed damping option used in rigid body contact. 

Fixed bug in sliding option in segment-based (SOFT=2) contact. 
970/6763.086 had a totally broken sliding option.


___________________________ Adaptivity _________________________________

Added another option for adaptive angle calculation.

Fixed error in adaptivity refinement.

Fixed bug in adaptivity if the material included failure.


___________________________ ALE ________________________________________

Added a new advection option (type 3) in which total energy is advected
rather than internal energy.

Improved algorithm for initial assignment of volume fractions in ALE.

Fixed bug in ALE porosity option in mat_034 curves.

Added more options for initial volume fraction (ALE). 

Added extra option for ALE mass scaling.


_____________________________ Output ____________________________________

Fixed code so that the number of cycles between running restart files 
can exceed 99999.

Added write statements to echo EOS 12 input to d3hsp.

Fixed sometimes incorrect header in NODOUT and SPCFORC files.

Fixed bug in D3THDT when the model contains any thick shell elements.

Fixed problem of missing control volumes in abstat file.

Added write to d3hsp of memory usage at the end of input phase.

Fixed section force problem.

Fixed printing of incorrect load curve ID in d3hsp for mat_126.


_____________________________ Restarts ___________________________________

Fixed a bug affecting the implicit step size in a small restart.

Fixed bug affecting full deck restarts of models with _OFFSET contact.


__________________________ Rigid Bodies ________________________________

Change friction law so Hybrid III dummy joints are not as sticky and integration
requires less effort.  

Added updates for coupling with MADYMO 6.3.


___________________________ Implicit _________________________________

Fixed bug in shell-brick interface for implicit.

Fixed problem of no end time specification for implicit eigenvalue problems.


__________________________ Miscellaneous ________________________________
                                                                     
Fixed bug in *initial_stress_section for mat_003 and mat_024.

Fixed energy growth and other problems related to 
constrained_shell_to_solid.


___________________________ MPP contact _________________________________

Fixed bug affecting translating contact entities (MPP only).

Fixed bug in MPP contact types 3/5/10 that could cause
some nodes to be missed during bucketsort against triangular segments.

Fixed bug in friction work calculation (MPP only)


_________________________ MPP Only (Miscellaneous) _____________________________


Fixed bug affecting airbag interaction (MPP only). 
  
Disabled auto_move for MPP.

Fixed bug in interface forces file (MPP).

Added header to MPP message files.

Fixed sometimes spurious error message of beam "k node on beam x-axis" (MPP).

Fixed bug potentially affecting ALE massless nodes with applied loads (MPP only).

Implemented implicit joint formulation for MPP.

Fixed bug in ncforc (MPP only).