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

Resnyansky, A. D.; Brown, E. N.; Trujillo, C. P.; Gray, G. T.

doi:10.1063/1.4971725

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:

Resnyansky, A. D. ^[1];

^[2]; Trujillo, C. P. ^[2];

^[2]

Weapons and Combat Systems Division, Edinburgh (Australia)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Fri Jan 13 00:00:00 EST 2017

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: 19.Biennial Conference on Shock Compression of Condensed Matter (SCCM-2015), Tampa Bay, FL (United States), 14-19 Jun 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.

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                    Resnyansky, A. D., Brown, E. N., Trujillo, C. P., & Gray, G. T. Constitutive modeling of the dynamic-tensile-extrusion test of PTFE.  United States.  https://doi.org/10.1063/1.4971725

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                    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.  https://doi.org/10.1063/1.4971725.  https://www.osti.gov/servlets/purl/1544755.

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@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         = {Fri Jan 13 00:00:00 EST 2017},

  month        = {Fri Jan 13 00:00:00 EST 2017}

}

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Works referenced in this record:

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 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

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

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

Furmanski, Jevan; Trujillo, Carl P.; Martinez, Daniel T.
Polymer Testing, Vol. 31, Issue 8
DOI: 10.1016/j.polymertesting.2012.07.011

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

Rae, P. J.; Brown, E. N.
Polymer, Vol. 46, Issue 19
DOI: 10.1016/j.polymer.2005.06.120

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

Dynamic-Tensile-Extrusion Response of Fluoropolymers
conference, January 2009

Brown, E. N.; Trujillo, C. P.; Gray, G. T.
SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter, AIP Conference Proceedings
DOI: 10.1063/1.3295027

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

Abstract

Citation Formats

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Pressure-induced phase change in poly(tetrafluoroethylene) at modest impact velocities
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