Determining and Modeling the Response of Ytterbium Piezoresistance Transducers.
Abstract
The objectives and results of a research effort undertaken to understand the response of ytterbium stress transducers under shock loading are presented. Plate impact experiments, using matrix materials that covered a wide range of mechanical impedances, were performed to determine the gauge response under well characterized conditions. Experiments were designed to conform closely to the requirements of the theoretical analysis. Residual resistance measurements, loading rate effects, and effect of matrix property variations were examined in detail. Quasi-static experimental methods and related analysis were developed to determine the complete set of electro-mechanical constants for the foils of interest. The phenomenological model developed earlier was extended to include strain-hardening in a consistent manner. The model predictions, using the appropriate material constants, agreed very well with the shock wave measurements. Using the analytic model a good understanding of ytterbium stress transducers was achieved.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1986
- Accession Number
- ADA173085
Entities
People
- Yogendra Gupta
Organizations
- Washington State University