The dynamic response of a weapon`s internal components to a high speed impact

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The dynamic response of a weapon`s internal components to an accident is critical in determining the safety of a weapon. The primary objective of this study was to determine the safety of the weapon based on the acceleration histories of its safety components. The accident scenario was a 80 feet/second impact of the weapon onto a railroad rail. Large deformations and many contacts were expected due to the severity of the impact condition. The complexity of this analysis required a nonlinear finite element code which could track many contact surfaces simultaneously and simulate material failure using element death. The damage ... continued below

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9 p.

Creation Information

Gruda, J.D. December 31, 1994.

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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. 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

The dynamic response of a weapon`s internal components to an accident is critical in determining the safety of a weapon. The primary objective of this study was to determine the safety of the weapon based on the acceleration histories of its safety components. The accident scenario was a 80 feet/second impact of the weapon onto a railroad rail. Large deformations and many contacts were expected due to the severity of the impact condition. The complexity of this analysis required a nonlinear finite element code which could track many contact surfaces simultaneously and simulate material failure using element death. The damage to the structure and its contents was simulated using PRONTO3D (an explicit finite element code developed at Sandia National Laboratories). Some of PRONTO3D`s advanced features used in the calculations included the self-contacting algorithms, material death, and rigid body mechanics. Throughout the analysis, a large number of mechanical contacts, both normal and sliding with friction, were detected and tracked by PRONT03D. The analysis predicted large deformations and material failure that took the form of tears in the aluminum shroud and in the housing of the components. The predicted acceleration histories were then used to determine if the components remained functional.

Physical Description

9 p.

Notes

OSTI as DE95006816

Source

  • Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995

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  • Other: DE95006816
  • Report No.: SAND--94-2514C
  • Report No.: CONF-950740--10
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 46549
  • Archival Resource Key: ark:/67531/metadc681498

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Office of Scientific & Technical Information Technical Reports

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

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 31, 1994

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • April 13, 2016, 1:37 p.m.

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Gruda, J.D. The dynamic response of a weapon`s internal components to a high speed impact, article, December 31, 1994; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc681498/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.