This project presents an effort to use physics based simulation techniques to model the Selective Laser Sintering (SLS) layering process. SLS is an additive manufacturing process that melts thin layers of extremely fine powder; we …

# Current Projects

## PD-IP – A Numerical Method for Computing Frictional Contact Forces of Large Multibody Systems

A Primal-Dual Interior Point (PD-IP) method is investigated for solving the Cone Complementarity Problem (CCP) associated with friction and contact of many body dynamics formulated by the framework of differential variational inequality (DVI). As a …

## Cross-Sectional Pattern in Mixing of Granular Material

This simulation is modeled after Spontaneous chaotic granular mixing by Shinbrot, Alexander, and Muzzio. A mixing barrel is filled with sand-sized particles with different colored particles upstream and downstream. The fractal pattern that emerges in …

## Robot Walking on Granular Terrain

The simulation consists of a six-legged robot which walks over granular terrain. This project begins to model the experiment presented in A Terradynamics of Legged Locomotion on Granular Media by Li, Zhang, and Goldman. Currently, …

## A Multibody Dynamics-Enabled Mobility Analysis Tool for Military Applications

This project demonstrates a modeling, simulation, and visualization framework aimed at enabling physics-based analysis of ground vehicle mobility. This framework, called Chrono, has been built to leverage parallel computing both on distributed and shared memory …

## Chrono::Render – A Purpose Rendering Capability of Large-Scale Simulation Data

As simulations grow in complexity the data extracted from the model grows in size. For engineers and scientists, it is difficult and tedious to gain meaningful insights for large data sets; hence visualization becomes critical …

## Terramechanics Methods for Real-Time, Off-Road Vehicle Mobility Simulation on Deformable Terrain

By extending semi-analytical Terramechanics methods for general three-dimensional tire and terrain geometries and combining it with a deformable compaction-based terrain model, general purpose tire/terrain mobility scenarios can be simulated. A vertical application was then created …

## Compaction-Based Terrain Model for Soft Soil Off-Road Vehicle Mobility Simulations

In an effort to support general 3-D vehicle mobility on non-flat terrain, CHRONO::Terrain is a deformable terrain database system that allows for the terrain surface to be described on both macro- and micro-scale resolutions. Inspired …

## Implementation of an Index-3 Differential-Algebraic Equation Solver on Parallel Architecture

The Absolute Nodal Coordinate Formulation (ANCF) has been widely used to carry out the dynamics analysis of flexible bodies that undergo large rotation and large deformation. This formulation is consistent with the nonlinear theory of …