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Title: Constitutive modeling of the dynamic-tensile-extrusion test of PTFE

Abstract

Use of polymers in defense, aerospace and industrial applications under extreme loading conditions makes prediction of the behavior of these materials very important. Crucial to this is knowledge of the physical damage response in association with phase transformations during loading and the ability to predict this via multi-phase simulation accounting for thermodynamical non-equilibrium and strain rate sensitivity. The current work analyzes Dynamic-Tensile-Extrusion (Dyn-Ten-Ext) experiments on polytetrafluoroethylene (PTFE). In particular, the phase transition during loading and subsequent tension are analyzed using a two-phase rate sensitive material model implemented in the CTH hydrocode. The calculations are compared with experimental high-speed photography. Deformation patterns and their link with changing loading modes are analyzed numerically and correlated to the test observations. It is concluded that the phase transformation is not as critical to the response of PTFE under Dyn-Ten-Ext loading as it is during the Taylor rod impact testing.

Authors:
 [1]; ORCiD logo [2];  [2]; ORCiD logo [2]
  1. Weapons and Combat Systems Division, Edinburgh (Australia)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1544755
Report Number(s):
LA-UR-15-26155
Journal ID: ISSN 0094-243X
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1793; Journal Issue: 1; Conference: Shock Compression of Condensed Matter, Tampa Bay, FL (US), 19 June 2015; Journal ID: ISSN 0094-243X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE

Citation Formats

Resnyansky, A. D., Brown, E. N., Trujillo, C. P., and Gray, G. T. Constitutive modeling of the dynamic-tensile-extrusion test of PTFE. United States: N. p., 2017. Web. doi:10.1063/1.4971725.
Resnyansky, A. D., Brown, E. N., Trujillo, C. P., & Gray, G. T. Constitutive modeling of the dynamic-tensile-extrusion test of PTFE. United States. doi:10.1063/1.4971725.
Resnyansky, A. D., Brown, E. N., Trujillo, C. P., and Gray, G. T. Fri . "Constitutive modeling of the dynamic-tensile-extrusion test of PTFE". United States. doi:10.1063/1.4971725. https://www.osti.gov/servlets/purl/1544755.
@article{osti_1544755,
title = {Constitutive modeling of the dynamic-tensile-extrusion test of PTFE},
author = {Resnyansky, A. D. and Brown, E. N. and Trujillo, C. P. and Gray, G. T.},
abstractNote = {Use of polymers in defense, aerospace and industrial applications under extreme loading conditions makes prediction of the behavior of these materials very important. Crucial to this is knowledge of the physical damage response in association with phase transformations during loading and the ability to predict this via multi-phase simulation accounting for thermodynamical non-equilibrium and strain rate sensitivity. The current work analyzes Dynamic-Tensile-Extrusion (Dyn-Ten-Ext) experiments on polytetrafluoroethylene (PTFE). In particular, the phase transition during loading and subsequent tension are analyzed using a two-phase rate sensitive material model implemented in the CTH hydrocode. The calculations are compared with experimental high-speed photography. Deformation patterns and their link with changing loading modes are analyzed numerically and correlated to the test observations. It is concluded that the phase transformation is not as critical to the response of PTFE under Dyn-Ten-Ext loading as it is during the Taylor rod impact testing.},
doi = {10.1063/1.4971725},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1793,
place = {United States},
year = {2017},
month = {1}
}

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Works referenced in this record:

The properties of poly(tetrafluoroethylene) (PTFE) in tension
journal, September 2005


The influence of temperature and strain rate on the tensile and compressive constitutive response of four fluoropolymers
journal, July 2006

  • Brown, E. N.; Rae, P. J.; Gray, G. T.
  • Journal de Physique IV (Proceedings), Vol. 134
  • DOI: 10.1051/jp4:2006134143

Constitutive modeling of shock response of polytetrafluoroethylene
journal, August 2011

  • Resnyansky, A. D.; Bourne, N. K.; Millett, J. C. F.
  • Journal of Applied Physics, Vol. 110, Issue 3
  • DOI: 10.1063/1.3619804

Phase transition modeling of polytetrafluoroethylene during Taylor impact
journal, December 2014

  • Resnyansky, A. D.; Bourne, N. K.; Brown, E. N.
  • Journal of Applied Physics, Vol. 116, Issue 22
  • DOI: 10.1063/1.4903817

Constitutive modeling of shock response of phase-transforming and porous materials with strength
journal, October 2010

  • Resnyansky, A. D.
  • Journal of Applied Physics, Vol. 108, Issue 8
  • DOI: 10.1063/1.3499646

Pressure-induced phase change in poly(tetrafluoroethylene) at modest impact velocities
journal, September 2005

  • Rae, Philip J.; Brown, Eric N.; Clements, Bradford E.
  • Journal of Applied Physics, Vol. 98, Issue 6
  • DOI: 10.1063/1.2041845

Dynamic-Tensile-Extrusion for investigating large strain and high strain rate behavior of polymers
journal, December 2012