Characterization of the Dynamic Behavior of Porous Solids. Volume 5. Dynamic Response of Porous Beryllium - Experiments.

Abstract

Planar-impact gas gun experiments were performed to investigate the dynamic mechanical response of nonsintered plasma-sprayed distended beryllium (PSDB) shock-loaded to stress levels below full compaction. Stress-time profiles were obtained at several depths in each PSDB target, using in-material ytterbium gages. A Lagrangian analysis was applied to the stress histories to produce dynamic stress-volume paths. PSDB was shown to undergo irreversible compaction at stress levels as low as 4 kbar, and in several profiles an unexpected stress overshoot, decay, and recompression history was observed after initial compression. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1976
Accession Number
ADA040658

Entities

People

  • Damian Curran
  • J. T. Rosenberg
  • M. J. Ginsberg

Organizations

  • SRI International

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Department Of Defense
  • Differential Equations
  • Dynamic Response
  • Elements
  • Fabrication
  • Gas Guns
  • Materials
  • Materials Laboratories
  • Measurement
  • Porous Materials
  • Power Supplies
  • Radiation
  • Resins
  • Specific Volume
  • Trajectories
  • Volume

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.