1. ERDC Knowledge Core
2. Pre - Engineer Research and Development Center (ERDC)
3. Structures Laboratory - (4/16/1978 - 2/22/2001)
4. Publication
5. Technical Report

Title:	Design and development of a miniature column-based interface (MCBI) stress gage
Authors:	United States. Defense Nuclear Agency. Rickman, Denis D.
Keywords:	Interface stress Lateral sensitivity Unground construction Soil-structure interaction Stress waves Explosion effects Blast effects Measurement Testing Equipment Instruments Stress gage
Publisher:	Structures Laboratory (U.S.) Engineer Research and Development Center (U.S.)
Series/Report no.:	Technical report (U.S. Army Engineer Waterways Experiment Station) ; SL-93-3.
Description:	Technical Report Abstract: Tests are routinely conducted to evaluate the survivability, under simulated battlefield conditions, of buried military structures subjected to high-explosive loadings. The survivability assessments require the measurement of dynamic normal stresses induced at soil/structure interfaces. Stresses in excess of 10,000 psi and accelerations greater than 100,000 g's may be applied at interface locations. Normal-incidence interface stress gages currently used in such tests are incapable of accurately measuring stresses above 5,000 psi, and are sensitive to lateral accelerations and structure-transmitted stresses which distort the measurement. This study explores the design, development, and testing of a miniature, column-based, interface (MCBI) stress gage. The MCBI gage is designed to measure normal stresses up to 35,000 psi. Laboratory tests indicate that the gage produces a linear output due to applied pressure and is virtually insensitive to lateral stresses. Explosive tests have shown the MCBI gage compares favorably to commonly-used interface stress gages at stresses up to 3,000 psi, and is survivable at stresses up to 25,000 psi.
Rights:	Approved for public release; distribution is unlimited.
URI:	http://hdl.handle.net/11681/11243
Appears in Collections:	Technical Report