Accession Number:

ADA324704

Title:

Time-Resolved Stress Measurements in Projectile Impacts: 2-D Loading.

Descriptive Note:

Final rept.,

Corporate Author:

WASHINGTON STATE UNIV PULLMAN SHOCK DYNAMICS LAB

Personal Author(s):

Report Date:

1997-03-01

Pagination or Media Count:

15.0

Abstract:

Experimental developments are reported that demonstrate the feasibility of using miniature optical stress sensors to determine the target response in 2-D loading situations arising due to projectile impacts. Oriented ruby chips embedded in aluminum and marble targets, at locations directly underneath rod impactors, were used to obtain time resolved, in-situ measurements. Time resolution approx. 100 ns and durations approx. 6 us reported here are intended to be representative and can be varied depending on the experimental requirements. Given the importance of obtaining in-situ, stress histories in targets subjected to 2-D dynamic loading, future work needs to address the development of analytic procedures to permit accurate and efficient inversion of the sensor output.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE