Stress Gage Testing for Wet CARES
Abstract
Ground shock measurements are important for interpreting field experiments and validating computer codes. This report describes a material- independent approach to stress gage validation, and applies this approach in two experiments using the mutual inductance particle velocity (MIPV) gage and a stress gage using flat pack circuits in rained sand test beds. The two experiments are (1) MIPV gage validation experiment in rained sand test beds performed in SRI 2-foot-diameter flyer plate facility and (2) a flatpack stress gage validation experiment in a rained-sand test bed in AFWL large diameter flyer plate shot 8-4. Recommendations include: (1) applying the gage validation approach to other materials (e.g., wet soils, hard rock); (2) increasing the diameter of the AFWL flyer plate facility for rained sand test beds and measuring the time of arrival and magnitude of two-dimensional effects in subsequent experiments, (3) performing high resolution two-dimensional calculations of flatpack response to more accurately determine the mechanical state of the ytterbium foil inside the flatback, and (4) continuing testing of our ytterbium foils to refine the piezoresistance coefficients used to model ytterbium in our flatpack response model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1988
- Accession Number
- ADA232178
Entities
People
- D. D. Keough
- P. S. Decarli
- Stephanie Miller
Organizations
- SRI International