This file constitutes revision 0 of the release notes for LS-DYNA version R11.2.1.
The string “REVISION 11” must appear in the LS-DYNA license file in order to run version R11.2.1. Please contact your LS-DYNA distributor or your Ansys sales representative if you have to have your license updated.
Documentation of R11.2.1 is provided in the R11.0 User’s Manuals which may be downloaded from www.lstc.com/download/manuals. For features mentioned in these release notes but which appear to be missing from the R11.0 User’s Manuals, please refer to the DRAFT User’s Manuals at www.lstc.com/download/manuals. Please note that not all features in the DRAFT User’s Manuals are available in version R11.2.1.
The remainder of this file describes what’s been added or fixed in version R11.2.1 since the release of version R11.2.0. See the release notes of R11.2.0 and R11.1.0 to see what was added or fixed in those releases since R11.0.0. The changes are primarily bug fixes. The items are arranged by category. In many cases, a particular item could fall under more than one category. For the sake of brevity, each item is listed only once under a single category.
*AIRBAG_PARTICLEinput that occurred when the ID associated with
*DEFINE_CPM_GAS_PROPERTIEShas 9 digits.
Distribute control volume airbag data to local structure scratch file. The old scheme produced inconsistent results between runs when using more than one compute node.
*CONTACT_AUTOMATIC_GENERALfrom groupable contacts, overriding any other setting. In some cases, groupable does not work well for
*CONTACT_AUTOMATIC_GENERALin releases before R12.
*CONTROL_ADAPTIVEwith ADPTYP = 7) that was causing incorrect stresses in non-adapted parts.
*INITIAL_VEHICLE_KINEMATICSto prevent it from referencing some data that did not yet exist, which was resulting in a segmentation fault.
*SECTION_SHELL_XFEMusing ELFORM = 52) with plasticity material laws that was causing simulations to crash.
Added new feature to
*CONTROL_MPP_DECOMPOSITION_REDECOMPOSITION to estimate the element decomposition cost based on the element being in contact and the stress state of the element for better load balancing after redecomposition.
$ PRMR1 VAL1 PRMR2 VAL2
RuPLscXXa1 &R1uPllSARuPLscXXt1 0.0
Fixed bug in reading data cards of
*PARAMETER that occurs if there is no space between a symbol and a value like in Listing 1.