New version of LS-DYNA is released for all common platforms.
The release provides fixes and extensions.
These notes briefly highlight changes made to LS-DYNA since the last production release of version 971, i.e., revision 7600.1077.
Zeroed the body force on the dependent nodes of rbe3 constraints.
Fixed shell element stress mapping by *INITIAL_STRESS_SHELL.
Fixed stress initialization for tetrahedral elements of element formulation 4.
Material Models
Fixed fabric material form 14 to use the unload curve for the b-fiber when defined instead of the load curve. This bug was introduced in R2 revision 789.
Modified beam spot weld type 9 failure. Now, the moment used in the failure calculation will be assumed to be zero if the axial weld stress is compressive.
Fixed the rate affects in type 9 beam spot weld failure.
Fixed possible divide by zero error in beam spot weld failure type 5.
Fixed mass scaling message for spot welds.
Fixed contact with material 106 so that parts don’t penetrate.
Fixed initial stress resultant for material 116.
Fixed input of material 138.
Miscellaneous
Made sense switch not case sensitive in d3kil file.
Fixed the energy ratio calculation with mass scaling.
Enabled *TERMINATION_ DELETED_SHELLS option.
Fixed d3hsp output format for belt materials and belt slip rings so they work for large numbers.
Fixed MPP bug related to initialization of tied interfaces: ALL interfaces were being treated as constrained when checking for nodes involved in more than one tied interface, causing some nodes to be incorrectly deleted from penalty based tied interfaces.
Fixed dbout output of jntforc converting data from global to the local coordinate system.
Modified MPP drawbead contact to better match SMP.
Fixed 3D remeshing in the MPP version.
Fixed d3dump write error for MPP solid adaptive.
Implicit
Fixed a memory error with material type 3 in implicit analysis.
Fixed treatment of displacement convergence tolerance for implicit analysis upon restart.
Stopped triangle sorting for efg shells in implicit analysis.
Fixed a bug in consistently assembling the force array for efg shell 42.
Added user defined through – thickness integration rules to efg shells.
Improved truncation error in EFG shell stability analysis.
Fixed a bug in efg shells when element failure happens.
Fixed a bug in *DATABASE_SPH if *DATABASE_HISTORY_NODE is not defined.
