A survey of numerical methods for shock physics applications Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Title

  • Main Title A survey of numerical methods for shock physics applications

Creator

  • Author: Hertel, E.S. Jr.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization
    Contributor Info: USDOE, Washington, DC (United States)

Publisher

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

Date

  • Creation: 1997-10-01

Language

  • English

Description

  • Content Description: Hydrocodes or more accurately, shock physics analysis packages, have been widely used in the US Department of Energy (DOE) laboratories and elsewhere around the world for over 30 years. Initial applications included weapons effects studies where the pressure levels were high enough to disregard the material strength, hence the term hydrocode. Over the last 30 years, Sandia has worked extensively to develop and apply advanced hydrocodes to armor/anti-armor interactions, warhead design, high explosive initiation, and nuclear weapon safety issues. The needs of the DOE have changed over the last 30 years, especially over the last decade. A much stronger emphasis is currently placed on the details of material deformation and high explosive initiation phenomena. The hydrocodes of 30 years ago have now evolved into sophisticated analysis tools that can replace testing in some situations and complement it in all situations. A brief history of the development of hydrocodes in the US will be given. The author also discusses and compares the four principal methods in use today for the solution of the conservation equations of mass, momentum, and energy for shock physics applications. The techniques discussed are the Eulerian methods currently employed by the Sandia multi-dimensional shock physics analysis package known as CTH; the element based Lagrangian method currently used by codes like DYNA; the element free Lagrangian method (also known as smooth particle hydrodynamics) used by codes like the Los Alamos code SPHINX; and the Arbitrary Lagrangian Eulerian methods used by codes like the Lawrence Livermore code CALE or the Sandia code ALEGRA.
  • Physical Description: 21 p.

Subject

  • Keyword: Numerical Solution
  • Keyword: Impact Shock
  • Keyword: Computer Codes
  • Keyword: Chemical Explosives
  • STI Subject Categories: 36 Materials Science
  • STI Subject Categories: 99 Mathematics, Computers, Information Science, Management, Law, Miscellaneous
  • Keyword: Materials
  • Keyword: Military Equipment
  • Keyword: Uses
  • Keyword: Hydrodynamics
  • Keyword: Shock Waves
  • Keyword: Deformation
  • Keyword: Weapons
  • STI Subject Categories: 45 Military Technology, Weaponry, And National Defense

Source

  • Conference: International workshop on new models and numerical codes for shock wave processes in condensed media, Oxford (United Kingdom), 15-19 Sep 1997

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Other: DE98000224
  • Report No.: SAND--97-1015C
  • Report No.: CONF-9709108--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 541912
  • Archival Resource Key: ark:/67531/metadc697116

Note

  • Display Note: OSTI as DE98000224