Home   >   Solutions   >   Materials Modeling

Multiphysics Simulations Supersonic nozzle flow against a flat plate, showing density (grey) and vorticity (colors). Read More >

Rocstar Simulation Suite Cutaway of a joint slot in the Space Shuttle solid motor showing inhibitor fluid-structure interaction. Read More >

Materials Modeling

Mesoscale Granular Materials Modeling

Rocstar tools open the door to exploring the vast possibilities of materials science.

Advances in material science are observable at the device-scale, but are often the result of changes in structure at the micron- or nano-scale. From aggregate arrangement in Ultra-High-Performance-Concrete (UHPC) to crystaline structure in energetic materials to how nano-aluminum particles burn, the small-scale will often dictate the characteristics of a material at the large scale. Applications include many different types of granular composite materials from high performance concrete to energetics. The modeling and uses of these materials span from the building of a runway to the efficiency of an advanced turbine engine engine. Rocstar’s modeling tools are capable of crunching it all, churning out revelatory insights to help you build better.

Flexibility. Rocstar’s IMSim materials modeling suite, initially designed to support the simulation of insensitive munitions energetic materials at the mesoscale, is scalable and adaptable to a vast array of scientific applications. Most of the modules, such as Rocpack, are designed to model geometry, structure, and response in three-dimensional systems. The suite features an unrivaled degree of flexibility, allowing for multiple grain shapes and sizes in individual systems. IMSim’s Tomoprop module takes tomographic scan data and/or computational packing model results to generate estimates of bulk thermomechanical properties; Tomoprop also gives you the power to examine mesoscale features of a structure or energetics model in detail. Other modules allow microstructure meshing and chemo-thermo-mechanical finite element analyses for investigation of microstructure effects such as phases of slow and fast cookoff scenarios. A separate module, RocSDT, uses advanced interface tracking to predict the impacts of shock initiation, producing shock-to-detonation predictions from mesoscale structure, including void distributions in a material. We give you the means to investigate heterogeneous materials at meso- and macroscale levels with simulations that delve into the interactions between mesoscale structure and macroscale effects. Rocstar is also developing data and simulation technologies for application to nanoparticles and nanoenergetics. This gives you the ability to model and manufacture far more precise and efficient materials to suit your specific needs.

Integrity. Rocstar strives to verify and validate our tools against data available in the literature or produced by our experimental partners. We capture scientifically important data from our partnerships with a variety of university research groups at the University of Illinois, Purdue, and others.  Our capabilities provide computational solutions that help engineers create more precise, safer and more cost-effective structures, explosives and propellants. Read more about our projects and simulations in the pages that follow.

Materials Modeling