École Polytechnique Fédérale de Lausanne (EPFL)
October 2012 - 2015
Postdoctoral Research Scientist.
- Currently researching nanoscale surface effects on core-shell nanodiamond geometries using continuum-level modeling, implemented as an Abaqus UELMAT.
- Currently working to extend the Coupled Atomistic/Discrete-Dislocations (CADD) method to 3-dimensions.
Northwestern University, Belytschko Research Laboratory
September 2008 - 2012
PhD Student.
- New technique for multiscale coupling for polymer materials, as part of a large-scale collaboration effort including ASU and UCSD.
- Developed and published a new adaptive atomistic-to-continuum coupling scheme. Provides high accuracy with relatively low computational cost using localized, evolving molecular dynamics regions coupled with XFEM. Involves new techniques for adaptive coupling and atomistic to continuum defect coarse-graining. Code written in C++, using MPI and LAPACK.
- Implementation of a level-set based image segmentation method, using variational parameters to eliminate the need for expensive reinitializations.
- Modeling of a polymer nanocomposite reinforced with single-walled carbon nanotubes, using the LAMMPS molecular dynamics code to obtain elastic properties.
Sandia National Laboratories,
Computational Solid Mechanics and Structural Dynamics Dpt.
May 2007 - August 2008, May - August 2011
Modeling and Simulation intern. On-site May through August of 2007 and 2008, telecommuting from August 2007-May 2008. Returned summer of 2011 during my PhD as a Research Intern.
- Implemented mortar method for finite element contact in Sandia's explicit dynamics code Presto.
- Worked closely with developers on verification and validation of state-of-the-art implicit and explicit finite element codes.
- Enhanced the coverage, automation, and output of a suite of test problems by creating unique scenarios and automation scripts.
- Analyzed the effects on runtime and solution accuracy of variables such as mesh decomposition, number of processors, cluster properties and mesh type.
- Compared simulation results across a variety of in-house and commercial finite element codes.
- Developed procedures for regression testing on multiple different high-end clusters.
Philips Medical Systems, CT Mechanical Engineering Division
May 2006 - December 2006
Mechanical engineering co-op position. Led four man team of co-op students, implemented change requests and tracked defects on extremely complex and precise mechanical systems. Designed and executed tests to analyze airflow, temperature, and rotational inertia. Required careful attention to detail and ability to complete tasks with very little instruction or supervision.
