The Expanded Large Scale Gap Test
Abstract
The increased use of very shock insensitive high explosives has produced a need for larger test systems than are normally used for determining gap sensitivities. Relatively little work has been done using acceptor diameters that are larger than 40 or 50 mm. The acceptor diameters in the usual tests are not large enough to give reliable results for the explosives that have large detonation-failure diameters. It follows, then, that the acceptor diameter of the gap test should be substantially larger than the equivalent failure diameter of the acceptor material. If it is otherwise, the gap-test results could be misleading. The objective of this work is to study a new gap test, designed for relatively shock insensitive explosives, by relating its test results to those of a current standardized test. In particular, we wish to establish the relationship between card gap sensitivities in two sizes, the standard NOL (NSWC) Large Scale Gap Test (LSGT) and the new test, the Expanded Large Scale Gap Test (ELSGT).
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1987
- Accession Number
- ADA179406
Entities
People
- Darren Price
- T. P. Liddiard
Organizations
- Naval Ordnance Laboratory