SANDIA REPORT SAND2009-6862 Unlimited Release Printed October 2009 Final Report LDRD Project 105816: Model Reduction of Large Dynamic Systems with Localized Nonlinearities Daniel J. Segalman, Clark. R. Dohrmann, Richard L. Lehoucq, and Ulrich L. Hetmaniuk Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved for public release; further dissemination unlimited.