Strength of porous α-SiO2 in a shock loaded environment

Hudspeth, Matthew; Olles, Joe; Williams, James Robert; Mandal, Anirban; Root, Seth; Vogler, Seth

doi:10.2172/1762993

Title: Strength of porous α-SiO₂ in a shock loaded environment

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Abstract

The strength of brittle porous media is of concern in numerous applications, for example, earth penetration, crater formation, and blast loading; thus it is of importance to possess techniques that allow for constitutive model calibration within the laboratory setting. It is the goal of the immediate work to demonstrate an experimental technique allowing for strength assessment, which can be implemented into pressure dependent yield surfaces within numerical simulation schemes. As a case study, the deviatoric strength of distended α-SiO₂ has been captured in a tamped Richtmyer- Meshkov instability environment at a pressure regime of 4-10 GPa. In contrast to traditional RMI studies used to infer strength in solids, the described approach herein is implemented to probe the behavior of the porous tamp media backing the corrugated solid surface. Hydrocode simulation has been used to interpret the experiment, and a resulting pressure-dependent yield surface akin to the often employed Modified Drucker-Prager model has been calibrated via the coupled experiment and simulation. The simulations indicate that the resulting jet length generated by the RMI is highly sensitive to the porous media strength, thereby providing a feasible experimental platform capable of capturing pressurized granular deviatoric response. Additionally, a Mach lens loading environment hasmore »« less

Authors:

Hudspeth, Matthew ^[1]; Olles, Joe ^[2]; Williams, James Robert ^[2]; Mandal, Anirban ^[1]; Root, Seth ^[2]; Vogler, Seth ^[3]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Publication Date:: Thu Aug 01 00:00:00 EDT 2019

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program

OSTI Identifier:: 1762993

Report Number(s):: SAND-2019-10277
678967

DOE Contract Number:: AC04-94AL85000; NA0003525

Resource Type:: Technical Report

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING; 36 MATERIALS SCIENCE

Citation Formats


                    Hudspeth, Matthew, Olles, Joe, Williams, James Robert, Mandal, Anirban, Root, Seth, and Vogler, Seth. Strength of porous α-SiO2 in a shock loaded environment.  United States: N. p., 2019. 
        Web.  doi:10.2172/1762993.

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                    Hudspeth, Matthew, Olles, Joe, Williams, James Robert, Mandal, Anirban, Root, Seth, & Vogler, Seth. Strength of porous α-SiO2 in a shock loaded environment.  United States.  https://doi.org/10.2172/1762993

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                    Hudspeth, Matthew, Olles, Joe, Williams, James Robert, Mandal, Anirban, Root, Seth, and Vogler, Seth. 2019.  
        "Strength of porous α-SiO2 in a shock loaded environment".  United States.  https://doi.org/10.2172/1762993.  https://www.osti.gov/servlets/purl/1762993.

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@article{osti_1762993,

  title        = {Strength of porous α-SiO2 in a shock loaded environment},

  author       = {Hudspeth, Matthew and Olles, Joe and Williams, James Robert and Mandal, Anirban and Root, Seth and Vogler, Seth},

  abstractNote = {The strength of brittle porous media is of concern in numerous applications, for example, earth penetration, crater formation, and blast loading; thus it is of importance to possess techniques that allow for constitutive model calibration within the laboratory setting. It is the goal of the immediate work to demonstrate an experimental technique allowing for strength assessment, which can be implemented into pressure dependent yield surfaces within numerical simulation schemes. As a case study, the deviatoric strength of distended α-SiO2 has been captured in a tamped Richtmyer- Meshkov instability environment at a pressure regime of 4-10 GPa. In contrast to traditional RMI studies used to infer strength in solids, the described approach herein is implemented to probe the behavior of the porous tamp media backing the corrugated solid surface. Hydrocode simulation has been used to interpret the experiment, and a resulting pressure-dependent yield surface akin to the often employed Modified Drucker-Prager model has been calibrated via the coupled experiment and simulation. The simulations indicate that the resulting jet length generated by the RMI is highly sensitive to the porous media strength, thereby providing a feasible experimental platform capable of capturing pressurized granular deviatoric response. Additionally, a Mach lens loading environment has also been implemented as a validation case study, demonstrating good agreement between experiment and simulation within an alternative loading environment. Calibration and validation of the pressure-dependent yield surface gives confidence to the model form, thereby providing a framework for future porous media strength studies.},

  doi          = {10.2172/1762993},

  url          = {https://www.osti.gov/biblio/1762993},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Aug 01 00:00:00 EDT 2019},

  month        = {Thu Aug 01 00:00:00 EDT 2019}

}

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Title: Strength of porous α-SiO2 in a shock loaded environment

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Citation Formats

Title: Strength of porous α-SiO₂ in a shock loaded environment