Accession Number : AD0717097

Title :   Research on a Gage to Measure Soil-Structure Interaction.

Descriptive Note : Final rept.,

Corporate Author : STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s) : Hull,J. Byrne

Report Date : 28 FEB 1962

Pagination or Media Count : 26

Abstract : The research reported was an attempt to develop a simple and accurate gage to measure the stresses, as a function of time, introduced into buried structures subjected to blast loading. No operational gage was developed; however, the results of the research produced two promising types of gage. The types of gages considered were pressure sensitive paint, titanate elastomer forms, flexible sheet (carbon-filled or metal particle-filled rubber; carbon-filled or metal particle-filled plastic, wire strain gages and semiconductor strain gage (germanium) encapsulated in plastic), column type strain gages, and piezoresistive semiconductors (germanium). Of these the flexible rubber sheet loaded with carbon black offers considerable promise if optimum conductive additives are found and contact problems are overcome, and the germanium crystal encapsulated in flexible plastic also offers considerable promise if an encapsulating material with suitable mechanical characteristics is selected and a good bond is obtained between the gage and encapsulating material. (Author)

Descriptors :   (*STRAIN GAGES, RELIABILITY(ELECTRONICS)), (*NUCLEAR EXPLOSIONS, DETONATION WAVES), PIEZOELECTRIC GAGES, UNDERGROUND STRUCTURES, SOILS, INTERACTIONS, MEASUREMENT, SEMICONDUCTORS, ELASTOMERS, STATISTICAL ANALYSIS

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE