RECALIBRATION OF STANDARD CARD-GAP TEST
Abstract
A new calibration of peak pressure (P) vs gap length (X) is presented for the NOL standardized and modified gap tests. It is shown that experimental values of both shock velocity (U) and particle velocity (u) are required to obtain a valid P-X curve at low pressures, because the normally linear U-u curve for the gap material exhibits a discontinuity at about X = 50 mm. The initial free-surface velocity is determined by monitoring films placed at the end of the gap.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 20, 1965
- Accession Number
- AD0470648
Entities
People
- Donna Price
- Thomas P. Liddiard Jr.
Organizations
- Naval Ordnance Laboratory