Accession Number:

AD0263564

Title:

A COMPARISON STUDY. CONFINED VS UNCONFINED TEST DATA. A CHECK STUDY. INSTRUMENTATION RESPONSE AT HIGH FREQUENCIES

Descriptive Note:

Corporate Author:

PICATINNY ARSENAL DOVER NJ FELTMAN RESEARCH LABS

Personal Author(s):

Report Date:

1961-09-01

Pagination or Media Count:

24.0

Abstract:

Open-ended Terms Cushioning materials. Confined and unconfined dynamic drop tests were conducted on like specimens of cushioning material of known density, size, and under comparable environmental conditions. The data collected from these tests were employed to plot, on the same graph, a static load-vs-peak acceleration curve, one for confined and one for unconfined data. A comparison of these curves shows conclusively that there is considerable difference in the dynamic behavior of the cushion in the confined, or as-packaged, condition. Beyond the optimum loading range, the peak accelerations transmitted by the unconfined cushion, continue to rise sharply, while peak accelerations for the confined cushion show a secondary decrease beyond the optimum loading range, before starting a secondary increase beyond bottoming-out. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE