Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives

doi:10.1088/1361-651X/aae402

Title: Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives

Abstract

The ignition behavior and hotspot dynamics of a potential class of aluminized energetic materials are studied computationally. The materials consist of HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) grains embedded in an aluminum matrix and, henceforth referred to as metal–matrix explosives (MMXs). For the analysis, two different MMXs, the soft MMX with a matrix of 1100 Al alloy and the hard MMX with a matrix of 7075 T651 Al alloy are considered. The thermo-mechanical response of the MMXs are computationally analyzed by subjecting them to monotonic impact loading using a Lagrangian cohesive finite element framework, with their ignition behavior analyzed through characterization of hotspots. For comparison, a polymer-bonded explosive (PBX) consisting of HMX and Estane is also analyzed under the same conditions. Here, the results show that the MMXs have significantly lower propensity for ignition and higher structural integrity than the PBX over the loading velocity range of 200–500 m s^-1.

Authors:

Roy, Ushasi ^[1];

^[2]; Miller, Christopher ^[1]; Horie, Yasuyuki ^[3]; Zhou, Min ^[1]

Georgia Inst. of Technology, Atlanta, GA (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Air Force Research Lab, Eglin AFB, FL (United States)

Publication Date:: 2018-10-24

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1560512

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Modelling and Simulation in Materials Science and Engineering

Additional Journal Information:: Journal Volume: 26; Journal Issue: 8; Journal ID: ISSN 0965-0393

Publisher:: IOP Publishing

Country of Publication:: United States

Language:: English

Subject:: 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; energetic material; PBX; HMX; metal–matrix explosives; ignition; impact

Citation Formats


                    Roy, Ushasi, Kim, Seokpum, Miller, Christopher, Horie, Yasuyuki, and Zhou, Min. Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives.  United States: N. p., 2018. 
        Web.  doi:10.1088/1361-651X/aae402.

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                    Roy, Ushasi, Kim, Seokpum, Miller, Christopher, Horie, Yasuyuki, & Zhou, Min. Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives.  United States.  doi:10.1088/1361-651X/aae402.

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                    Roy, Ushasi, Kim, Seokpum, Miller, Christopher, Horie, Yasuyuki, and Zhou, Min. Wed .  
        "Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives".  United States.  doi:10.1088/1361-651X/aae402.  https://www.osti.gov/servlets/purl/1560512.

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@article{osti_1560512,

  title        = {Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives},

  author       = {Roy, Ushasi and Kim, Seokpum and Miller, Christopher and Horie, Yasuyuki and Zhou, Min},

  abstractNote = {The ignition behavior and hotspot dynamics of a potential class of aluminized energetic materials are studied computationally. The materials consist of HMX (octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) grains embedded in an aluminum matrix and, henceforth referred to as metal–matrix explosives (MMXs). For the analysis, two different MMXs, the soft MMX with a matrix of 1100 Al alloy and the hard MMX with a matrix of 7075 T651 Al alloy are considered. The thermo-mechanical response of the MMXs are computationally analyzed by subjecting them to monotonic impact loading using a Lagrangian cohesive finite element framework, with their ignition behavior analyzed through characterization of hotspots. For comparison, a polymer-bonded explosive (PBX) consisting of HMX and Estane is also analyzed under the same conditions. Here, the results show that the MMXs have significantly lower propensity for ignition and higher structural integrity than the PBX over the loading velocity range of 200–500 m s-1.},

  doi          = {10.1088/1361-651X/aae402},

  journal      = {Modelling and Simulation in Materials Science and Engineering},

  number       = 8,

  volume       = 26,

  place        = {United States},

  year         = {2018},

  month        = {10}

}

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DOI: 10.1088/1361-651X/aae402

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Title: Computational study of ignition behavior and hotspot dynamics of a potential class of aluminized explosives

Abstract

Citation Formats

Modeling heterogeneous energetic materials at the mesoscale journal, February 2002

Meso-Scale Computation of Uniaxial Waves in Granular Explosives-Analysis of Deformation Induced Ignition conference, November 2012

Prediction of fracture toughness of ceramic composites as function of microstructure: I. Numerical simulations journal, February 2013

High-resolution simulations of cylindrical void collapse in energetic materials: Effect of primary and secondary collapse on initiation thresholds journal, April 2017

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CONSTITUTIVE MODEL CONSTANTS FOR Al7075-T651 and Al7075-T6 conference, January 2009

Investigating the Mechanical Properties of RDX Crystals Using Nano-Indentation journal, March 2012

Prediction of probabilistic ignition behavior of polymer-bonded explosives from microstructural stochasticity journal, May 2013

Thermal decomposition models for HMX-based plastic bonded explosives journal, April 2004

Cast aluminized explosives (review) journal, July 2008

Micromechanical Simulation of Dynamic Fracture Using the Cohesive Finite Element Method journal, March 2004

Hot Spots, High Explosives Ignition, and Material Microstructure journal, July 2013

Elastic–plastic wave profiles in cyclotetramethylene tetranitramine crystals journal, July 2004

Influence of Aluminium on Performance of HTPB-based Aluminised PBXs journal, October 2004

Ignition Desensitization of PBX via Aluminization journal, October 2014

Computational prediction of probabilistic ignition threshold of pressed granular octahydro-1,3,5,7-tetranitro-1,2,3,5-tetrazocine (HMX) under shock loading journal, September 2016

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Mesoscale analysis of volumetric and surface dissipation in granular explosive induced by uniaxial deformation waves journal, November 2010

Studies of Detonation Characteristics of Aluminum Enriched RDX Compositions journal, October 2007

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A Framework for Analyzing the Microstructure Level Thermomechanical Response Polymer Bonded Explosives journal, January 2011

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Energy localization in HMX-Estane polymer-bonded explosives during impact loading journal, March 2012

Quantitative characterization and modeling of composite microstructures by Voronoi cells journal, June 1997

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Microstructural level response of HMX–Estane polymer-bonded explosive under effects of transient stress waves journal, June 2012

Frictional Heating and Ignition of Energetic Materials conference, January 2006

Modeling and analysis of reactive compaction for granular energetic solids journal, September 2003

A Lagrangian framework for analyzing microstructural level response of polymer-bonded explosives journal, June 2011

Critical Conditions for Impact- and Shock-Induced Hot Spots in Solid Explosives † journal, January 1996

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Investigation of the mesoscopic scale response of low-density pressings of granular sugar under impact journal, January 2007

Direct Ink Writing of 3D Functional Materials journal, November 2006

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Ignition criterion for heterogeneous energetic materials based on hotspot size-temperature threshold journal, February 2013

Additive manufacturing: technology, applications and research needs journal, May 2013

Modeling heterogeneous energetic materials at the mesoscale
journal, February 2002

Meso-Scale Computation of Uniaxial Waves in Granular Explosives-Analysis of Deformation Induced Ignition
conference, November 2012

Prediction of fracture toughness of ceramic composites as function of microstructure: I. Numerical simulations
journal, February 2013

High-resolution simulations of cylindrical void collapse in energetic materials: Effect of primary and secondary collapse on initiation thresholds
journal, April 2017

Collapse of elongated voids in porous energetic materials: Effects of void orientation and aspect ratio on initiation
journal, April 2017

CONSTITUTIVE MODEL CONSTANTS FOR Al7075-T651 and Al7075-T6
conference, January 2009

Investigating the Mechanical Properties of RDX Crystals Using Nano-Indentation
journal, March 2012

Prediction of probabilistic ignition behavior of polymer-bonded explosives from microstructural stochasticity
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Cast aluminized explosives (review)
journal, July 2008

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Hot Spots, High Explosives Ignition, and Material Microstructure
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Elastic–plastic wave profiles in cyclotetramethylene tetranitramine crystals
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3D numerical simulations of ductile targets subjected to oblique impact by sharp nosed projectiles
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Mesoscale analysis of volumetric and surface dissipation in granular explosive induced by uniaxial deformation waves
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Studies of Detonation Characteristics of Aluminum Enriched RDX Compositions
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Finite element simulations of shear localization in plate impact
journal, March 1994

A Framework for Analyzing the Microstructure Level Thermomechanical Response Polymer Bonded Explosives
journal, January 2011

Equations of state for energetic materials from density functional theory with van der Waals, thermal, and zero-point energy corrections
journal, December 2010

Energy localization in HMX-Estane polymer-bonded explosives during impact loading
journal, March 2012

Quantitative characterization and modeling of composite microstructures by Voronoi cells
journal, June 1997

Effect of Aluminum Particle size on the high Strain rate Properties of Pressed Aluminized Explosives
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Microstructural level response of HMX–Estane polymer-bonded explosive under effects of transient stress waves
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Frictional Heating and Ignition of Energetic Materials
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Modeling and analysis of reactive compaction for granular energetic solids
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A Lagrangian framework for analyzing microstructural level response of polymer-bonded explosives
journal, June 2011

Critical Conditions for Impact- and Shock-Induced Hot Spots in Solid Explosives ^†
journal, January 1996

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Investigation of the mesoscopic scale response of low-density pressings of granular sugar under impact
journal, January 2007

Direct Ink Writing of 3D Functional Materials
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Theoretical study of some thermodynamical properties for solid under high pressure using finite-strain EOS
journal, October 2012

Ignition criterion for heterogeneous energetic materials based on hotspot size-temperature threshold
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