The new simultaneous PVDF/VISAR measurement technique: Applications to highly porous HMX

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Time-resolved pressure and particle velocity measurements provide the foundation for modem descriptions of rate-dependent materials deformation processes in condensed matter subjected to high pressure shock loading. Much of that foundation has been based on the VISAR, nanosecond time-resolved particle velocity technique. It has been known for sometime that full description of the rate-dependent processes requires both particle velocity and stress data, but stress sensors with nanosecond resolution have not been previously available for general usage. More recently, the piezoelectric polymer PVDF has been used for stress and stress-rate measurements in rate dependent materials response experiments. Neither method, by itself, gives ... continued below

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4 p.

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Anderson, M.U. & Graham, R.A. December 31, 1995.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 16 times . More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Time-resolved pressure and particle velocity measurements provide the foundation for modem descriptions of rate-dependent materials deformation processes in condensed matter subjected to high pressure shock loading. Much of that foundation has been based on the VISAR, nanosecond time-resolved particle velocity technique. It has been known for sometime that full description of the rate-dependent processes requires both particle velocity and stress data, but stress sensors with nanosecond resolution have not been previously available for general usage. More recently, the piezoelectric polymer PVDF has been used for stress and stress-rate measurements in rate dependent materials response experiments. Neither method, by itself, gives unique material response models, particularly in the case of highly porous materials. The first simultaneous, time-resolved measurements with VISAR and PVDF have now been carried out. Measurements were taken on highly porous HMX that clearly show the two-dimensional nature of HMX viscous compression behavior, followed by the onset of chemical reaction. This technique promises to provide a qualitative improvement in our ability to develop rate-dependent material descriptions of all solids including highly porous solids. Precise use of this technique will require new window materials.

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4 p.

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OSTI as DE96003705

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  • American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995

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  • Other: DE96003705
  • Report No.: SAND--95-0883C
  • Report No.: CONF-950846--72
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 172136
  • Archival Resource Key: ark:/67531/metadc665522

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • April 14, 2016, 5:53 p.m.

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Anderson, M.U. & Graham, R.A. The new simultaneous PVDF/VISAR measurement technique: Applications to highly porous HMX, article, December 31, 1995; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc665522/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.