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Title: High velocity properties of the dynamic frictional force between ductile metals

Abstract

The high velocity properties of the tangential frictional force between ductile metal interfaces seen in large-scale NonEquilibrium Molecular Dynamics (NEMD) simulations are characterized by interesting scaling behavior. In many cases a power law decrease in the frictional force with increasing velocity is observed at high velocities. We discuss the velocity dependence of the high velocity branch of the tangential force in terms of structural transformation and ultimate transition, at the highest velocities, to confined fluid behavior characterized by a critical strain rate. The particular case of an Al/Al interface is discussed.

Authors:
 [1];  [1];  [1];  [1]
  1. Los Alamos National Laboratory
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
990779
Report Number(s):
LA-UR-10-01101; LA-UR-10-1101
TRN: US1007360
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: APS Topical Conference on Shock Compression of Condensed Matter-2009 ; June 28, 2009 ; Nashville, TN
Country of Publication:
United States
Language:
English
Subject:
75; FRICTION FACTOR; DUCTILITY; METALS; MOLECULAR DYNAMICS METHOD; ALUMINIUM; INTERFACES; SHOCK WAVES; COMPRESSION

Citation Formats

Hammerberg, James Edward, Hollan, Brad L, Germann, Timothy C, and Ravelo, Ramon J. High velocity properties of the dynamic frictional force between ductile metals. United States: N. p., 2010. Web.
Hammerberg, James Edward, Hollan, Brad L, Germann, Timothy C, & Ravelo, Ramon J. High velocity properties of the dynamic frictional force between ductile metals. United States.
Hammerberg, James Edward, Hollan, Brad L, Germann, Timothy C, and Ravelo, Ramon J. Fri . "High velocity properties of the dynamic frictional force between ductile metals". United States. doi:. https://www.osti.gov/servlets/purl/990779.
@article{osti_990779,
title = {High velocity properties of the dynamic frictional force between ductile metals},
author = {Hammerberg, James Edward and Hollan, Brad L and Germann, Timothy C and Ravelo, Ramon J},
abstractNote = {The high velocity properties of the tangential frictional force between ductile metal interfaces seen in large-scale NonEquilibrium Molecular Dynamics (NEMD) simulations are characterized by interesting scaling behavior. In many cases a power law decrease in the frictional force with increasing velocity is observed at high velocities. We discuss the velocity dependence of the high velocity branch of the tangential force in terms of structural transformation and ultimate transition, at the highest velocities, to confined fluid behavior characterized by a critical strain rate. The particular case of an Al/Al interface is discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}

Conference:
Other availability
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