Display Abstract

Title Justification of Leading Order Quasicontinuum Approximations of Strongly Nonlinear Lattices

Name Christopher Chong
Country USA
Email chong@math.umass.edu
Co-Author(s) P.G. Kevrekidis, Guido Schneider
Submit Time 2014-01-29 16:11:51
Session
Special Session 110: Nonlinear Schrodinger equations and its applications
Contents
I will consider the leading order quasicontinuum limits of a one-dimensional granular chain governed by the Hertz contact law under precompression. The approximate model, a so-called p-system, which is derived in this limit is justified by establishing asymptotic bounds for the error with the help of energy estimates. The continuum model predicts the development of shock waves, which we investigate with the aid of numerical simulations.