THE EFFECTS OF SHAPE OF LOAD PULSE ON SHOCK-MITIGATING CHARACTERISTICS OF A STYROFOAM PLASTIC,

Abstract

The dynamic cushioning characteristics of confined specimens of Styrofoam HD-1 are presented in the form of stress-strain curves and stress-time curves. The specimens demonstrated identical stress-strain curves from various impulse loadings on the HYGE shock tester and from static tests. Variations in the rise time and pulse durations of the HYGE wave forms were accompanied by like variations in rise times and durations of the crushing stress-time curves. Styrofoam HD-1 crushed initially at approximately 46 psi and bottomed at about 50 per cent strain with an energy dissipation at bottoming of approximately 3 ft-lb per cubic inch. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1965
Accession Number
AD0623317

Entities

People

  • E. A. Ripperger
  • Ervin S. Perry
  • J. Neils Thompson
  • Robert I. Carr

Organizations

  • University of Texas at Austin

Tags

DTIC Thesaurus Topics

  • Cushioning
  • Dissipation
  • Impulse Loading
  • Mechanical Properties
  • Physical Properties
  • Static Tests
  • Stress Strain Relations
  • Stresses
  • Unmanned Ground Systems
  • Waveforms

Readers

  • Explosive Engineering.
  • Structural Dynamics.