Accession Number:

AD0639213

Title:

LATE-STAGE EQUIVALENCE IN ONE-DIMENSIONAL IMPACTS

Descriptive Note:

Corporate Author:

DREXEL INST OF TECH PHILADELPHIA PA

Personal Author(s):

Report Date:

1966-07-01

Pagination or Media Count:

29.0

Abstract:

The attenuation of a strong plane shock produced in a target by the impact of a thin striker is studied by the numerical method of characteristics. The calculated results show that late-stage equivalence exists for impacts in aluminum, copper, and ideal gases with various ratios of specific heats, gamma. The shock fronts produced by different impacts approach each other in position, and in strength, at late times provided that du sub o alpha is constant where d is the thickness of the striker, u sub o the impact velocity, and alpha a constant with values of 1.28, 1.50, 1.62, 1.50, and 1.32, for aluminum, copper, and ideal gases with gamma equal to 2.0, 1.4, and 1.1, respectively.

Subject Categories:

  • Armor
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE