skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: An Elastic Plastic Contact Model with Strain Hardening for the LAMMPS Granular Package

Abstract

The following details the implementation of an analytical elastic plastic contact model with strain hardening for normal im pacts into the LAMMPS granular package. The model assumes that, upon impact, the co llision has a period of elastic loading followed by a period of mixed elastic plas tic loading, with contributions to each mechanism estimated by a hyperbolic seca nt weight function. This function is implemented in the LAMMPS source code as the pair style gran/ep/history. Preliminary tests, simulating the pouring of pure nickel spheres, showed the elastic/plastic model took 1.66x as long as similar runs using gran/hertz/history.

Authors:
 [1];  [2];  [3]
  1. Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Component Science and Mechanics
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Nanoscale and Reactive Processes
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1177388
Report Number(s):
SAND2015-1974
579369
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Kuhr, Bryan, Brake, Matthew Robert, and Lechman, Jeremy B. An Elastic Plastic Contact Model with Strain Hardening for the LAMMPS Granular Package. United States: N. p., 2015. Web. doi:10.2172/1177388.
Kuhr, Bryan, Brake, Matthew Robert, & Lechman, Jeremy B. An Elastic Plastic Contact Model with Strain Hardening for the LAMMPS Granular Package. United States. doi:10.2172/1177388.
Kuhr, Bryan, Brake, Matthew Robert, and Lechman, Jeremy B. Sun . "An Elastic Plastic Contact Model with Strain Hardening for the LAMMPS Granular Package". United States. doi:10.2172/1177388. https://www.osti.gov/servlets/purl/1177388.
@article{osti_1177388,
title = {An Elastic Plastic Contact Model with Strain Hardening for the LAMMPS Granular Package},
author = {Kuhr, Bryan and Brake, Matthew Robert and Lechman, Jeremy B.},
abstractNote = {The following details the implementation of an analytical elastic plastic contact model with strain hardening for normal im pacts into the LAMMPS granular package. The model assumes that, upon impact, the co llision has a period of elastic loading followed by a period of mixed elastic plas tic loading, with contributions to each mechanism estimated by a hyperbolic seca nt weight function. This function is implemented in the LAMMPS source code as the pair style gran/ep/history. Preliminary tests, simulating the pouring of pure nickel spheres, showed the elastic/plastic model took 1.66x as long as similar runs using gran/hertz/history.},
doi = {10.2172/1177388},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Mar 01 00:00:00 EST 2015},
month = {Sun Mar 01 00:00:00 EST 2015}
}

Technical Report:

Save / Share: