Non-Newtonian Flow for Human Impact Protection.

Abstract

The energy absorption characteristics of a number of dilatant suspension systems were evaluated using a modified pendulum impact tester. Two systems which were found to have superior impact energy absorption properties are 50% corn starch + 2% SPAN 20 in a concentrated (26.5%) NaCl solution and 70.5% glass microbeads (29 mu) in water. The impact properties of all the dilatant systems were found to be significantly better than currently available ejection seat cushion materials. A qualitative correlation between the impact parameters measured in this investigation and the forces experienced during simulated ejection tests was made.

Document Details

Document Type
Technical Report
Publication Date
Dec 16, 1971
Accession Number
AD0734423

Entities

People

  • Edwin Hendler
  • Francis W. Cooke
  • Georgina M. Overall
  • Roger C. May
  • William B. Tarpley Jr.

Organizations

  • Franklin Institute

Tags

DTIC Thesaurus Topics

  • Absorption
  • Ejection
  • Ejection Seats
  • Materials
  • Pendulums
  • Seats

Fields of Study

  • Engineering

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Materials Science