RAPID INFLATION OF A FABRIC BAG BY SOLID FUEL GASES

SNABBUPPBLASHING AV TYGPASE MED KRUTGAS

Experiments have been carried out with a solid fuel gas generator for rapid inflation of a fabric bag intended as a protective shield in an automobile. The tests were made with a bag of 60 litre capacity. With the gas generator supplied, the filling time was approximately 75 ms. This time was hardly changed when the amount of fuel varied from 30 to 60 g. At 40 g. fuel, a maximum additional pressure of 0.11 to 0.26 atm was reached after about 160 ms. A pressure of 0.5 atm would probably require 60 g. The maximum temperature varies considerably with the position of the measuring point but the representative value would be between 100 and 200 C after 150 ms after which the temperature falls to about 50 C in a few seconds. The maximum noise pressure was, on average, 145 db and the highest 152 db. The bag burst in several cases during the latter series of tests although it remained intact during the earlier series. The reasons for this are not known, but the temperature of the solid fuel gas and its composition can be assumed to be the cause of the problem. /AUTHOR/

  • Supplemental Notes:
    • Abstract is from STAR, V. 12, no. 4, 23 February 1974, p. 367, N74-12788
  • Corporate Authors:

    Research Institute of National Defence

    Stockholm,   Sweden 
  • Authors:
    • Jacobsson, D
    • THOREN, S
  • Publication Date: 1972-3

Language

  • Swedish

Media Info

  • Features: References;
  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00262122
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM