3D micromechanical simulation of PBX composites

Walters, David J.; Luscher, Darby Jon; Yeager, John David

doi:10.1063/12.0000922

3D micromechanical simulation of PBX composites

Journal Article · Mon Nov 02 00:00:00 EST 2020 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/12.0000922· OSTI ID:2000902

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Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Previous research studied the constitutive response and interface strength of a bonded bicrystal system containing two HMX explosive grains bound with a HTPB polymer binder by performing FE simulations on real geometry imaged with micro Computed Tomography (µCT). The parameters generated from this past study were successfully applied to 2D mesoscale simulations of µCT imaged HMX-HTPB polycrystal samples. Presently, the mechanical response of PBXs containing a Nitro-Plasticized Estane (NPE) binder with similar microstructural geometry to the HMX-HTPB polycrystal samples were studied. Imaging of a HMX-NPE bicrystal sample allowed for simulation of the new material pairing. However, imaging using µCT techniques on the new polycrystal samples was difficult due to the decrease in contrast between the HMX grains and the NPE binder. Mesoscale polycrystal simulations utilizing a single µCT imaged microstructure were performed on a 3D representative volume element (RVE) comparing the delamination behavior and mechanical response of both HMX-HTPB and HMX-NPE PBXs. Furthermore, this technique shows the ability to virtually explore the mechanical response of a range of hypothetical materials that share common microstructural geometric characteristics in addition to studying numerically altered geometries.

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 2000902

Report Number(s):: LA-UR--19-27205

Journal Information:: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Vol. 2272; ISSN 0094-243X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

References (12)

Mechanical properties of plastic-bonded explosive binder materials as a function of strain-rate and temperature Cady, C. M.; Blumenthal, W. R.; Gray, G. T. Polymer Engineering & Science, Vol. 46, Issue 6 https://doi.org/10.1002/pen.20540	journal	January 2006
Elasticity of Crystalline Molecular Explosives Hooks, Daniel E.; Ramos, Kyle J.; Bolme, C. A. Propellants, Explosives, Pyrotechnics, Vol. 40, Issue 3 https://doi.org/10.1002/prep.201400282	journal	April 2015
Mesoscale analysis of volumetric and surface dissipation in granular explosive induced by uniaxial deformation waves Panchadhara, R.; Gonthier, K. A. Shock Waves, Vol. 21, Issue 1 https://doi.org/10.1007/s00193-010-0287-6	journal	November 2010
Imposing periodic boundary condition on arbitrary meshes by polynomial interpolation Nguyen, V. -D.; Béchet, E.; Geuzaine, C. Computational Materials Science, Vol. 55 https://doi.org/10.1016/j.commatsci.2011.10.017	journal	April 2012
Modelling the damage and deformation process in a plastic bonded explosive microstructure under tension using the finite element method Arora, H.; Tarleton, E.; Li-Mayer, J. Computational Materials Science, Vol. 110 https://doi.org/10.1016/j.commatsci.2015.08.004	journal	December 2015
Experimental and numerical analysis of mode II fracture between propellant and insulation Niu, Ran-Ming; Zhou, Qing-Chun; Chen, Xiong International Journal of Adhesion and Adhesives, Vol. 52 https://doi.org/10.1016/j.ijadhadh.2014.03.005	journal	July 2014
Cohesive finite element modeling of the delamination of HTPB binder and HMX crystals under tensile loading Walters, David J.; Luscher, Darby J.; Yeager, John D. International Journal of Mechanical Sciences, Vol. 140 https://doi.org/10.1016/j.ijmecsci.2018.02.048	journal	May 2018
Determination of second-order elastic constants of cyclotetramethylene tetranitramine (β-HMX) using impulsive stimulated thermal scattering Sun, B.; Winey, J. M.; Gupta, Y. M. Journal of Applied Physics, Vol. 106, Issue 5 https://doi.org/10.1063/1.3211927	journal	September 2009
A theory for plastic-bonded materials with a bimodal size distribution of filler particles Clements, B. E.; Mas, E. M. Modelling and Simulation in Materials Science and Engineering, Vol. 12, Issue 3 https://doi.org/10.1088/0965-0393/12/3/004	journal	February 2004
A Lagrangian framework for analyzing microstructural level response of polymer-bonded explosives Barua, Ananda; Zhou, Min Modelling and Simulation in Materials Science and Engineering, Vol. 19, Issue 5 https://doi.org/10.1088/0965-0393/19/5/055001	journal	June 2011
A Continuum Model for Void Nucleation by Inclusion Debonding Needleman, A. Journal of Applied Mechanics, Vol. 54, Issue 3 https://doi.org/10.1115/1.3173064	journal	September 1987
In Situ Imaging during Compression of Plastic Bonded Explosives for Damage Modeling Manner, Virginia W.; Yeager, John D.; Patterson, Brian M. Materials, Vol. 10, Issue 6 https://doi.org/10.3390/ma10060638	journal	June 2017

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Related Subjects

36 MATERIALS SCIENCE
computed tomography
direct numerical simulation
explosives
mesoscale
micromechanics
polycrystalline material

3D micromechanical simulation of PBX composites

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