Accession Number:

AD0673700

Title:

MECHANICAL ENGINEERING OF PLASTIC NOSE CONES HAVING STRESS-CRACKING TENDENCIES,

Descriptive Note:

Corporate Author:

HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s):

Report Date:

1968-06-01

Pagination or Media Count:

46.0

Abstract:

Relaxation applied strain data are necessary to select a material that can withstand the level of strain in the XM429 design without stress cracking. However, such data are not available for polyphenylene oxide and many other plastics used in ordnance. This prompted a study of the applicability of the more abundant data, namely creep applied stress, constant strain rate, and bursting pipe applied pressure data to this problem means of using these data in an applied strain problem are described. Bursting pipe data are used to show that low melt index, high-density polyethylene is a material mechanically acceptable for use on the XM429. Author

Subject Categories:

  • Ammunition and Explosives
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE