Integrating LSTC and MSC.Software Technology for Explicit Dynamics and Fluid-Structure Interaction

LSTC and MSC.Software have entered a long-term strategic partnership, with the objective of integrating complementary technology to the benefit of the structural and fluid dynamics community. This paper presents some of the technical aspects of this integration, highlights the technologies being used, and demonstrates the new application capabilities being enabled by this partnership. The presentation will focus on two aspects of code coupling. Firstly, between MSC.Software’s MSC.Dytran Eulerian solver and LSTC's LS-DYNA explicit solver, and secondly the integration of LS-DYNA explicit solutions via the SOL700 sequence in MSC.Nastran. Both the Eulerian solver in MSC.Dytran and the structural explicit solver in LS- DYNA are unique in their class. Coupling the two codes together allows FSI (Fluid-Structure Interaction) simulations to be run efficiently and on a high level of accuracy and speed. Similarly, coupling of the LS-DYNA explicit solver with MSC.Nastran via SOL700 enables a new range of applications in crash and impact from within a general-purpose structural environment. This paper describes technical aspects of how these code integrations have been developed, and presents a range of application areas and examples of the new dynamics and fluid-structure interaction capabilities achieved.