<div data-index=”122″>Reviewing the System Coupling User’s Guide (Release 2026 R1), the list of supported coupling participants includes Mechanical\/Mechanical APDL, Fluent, CFX, Forte, Electronics Desktop\/Maxwell, FMU, Thermal Desktop, Rocky, and Files – but LS-DYNA does not appear in this list.<\/div><div data-index=”122″>Therefore, if possible, I’d like to clarify the current status of coupling between Ansys Rocky (DEM) and LS-DYNA.<\/div><div data-index=”122″> <\/div><div data-index=”123″>So far, I’ve found clear documentation for:<\/div><div data-index=”123″> <\/div><div data-index=”125″>- Rocky ↔ Ansys Mechanical (1-way and 2-way, via System Coupling)<\/div><div data-index=”126″>- Rocky ↔ Ansys Fluent (CFD-DEM)<\/div><div data-index=”127″>- LS-DYNA participating in System Coupling with Fluent and MAPDL<\/div><div data-index=”128″>- A sequential\/homogenization workflow linking Rocky → Multiscale.Sim → LS-DYNA (Cybernet’s Multiscale.Sim add-in), which is one-way and does not preserve time-resolved feedback between the two solvers<\/div><div data-index=”129″> <\/div><div data-index=”130″>My specific questions:<\/div><div data-index=”131″> <\/div><\/p>\n
<li data-index=”133″>If supported, is LS-DYNA’s participant status in System Coupling still a beta\/experimental feature for this type of coupling, or has it reached production maturity?<\/li>\n
<li data-index=”134″>Are there known limitations regarding the time-step mismatch between Rocky’s DEM solver and LS-DYNA’s explicit time integration (microsecond-scale)? Is subcycling or another mechanism used to reconcile this?<\/li>\n
<li data-index=”135″>Is there a reference case, tutorial, or technical manual (beyond the general System Coupling User’s Guide) that documents this specific Rocky↔LS-DYNA workflow?<\/li>\n
<li data-index=”136″>What licenses\/executables are required (e.g., a special LS-DYNA build with SyC DLLs, as required for LS-DYNA↔Fluent coupling)?<\/li>\n<\/ul>\n
<div data-index=”138″>Any pointers to official documentation, technical support cases, or example projects would be greatly appreciated.<\/div><div data-index=”139″>Thanks in advance!<\/div><\/p>\n","protected":false},"template":"","class_list":["post-461073","topic","type-topic","status-publish","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t