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Title: Triple-material stress-strain resistivity gage

Abstract

A triple material piezoresistive gage provides multi-component elastic stress or measurements. Thin foils of three piezoresistive materials, e.g. ytterbium, manganin, and constantan, are configured in a nested serpentine rectilinear grid or other grid arrangement and embedded in a medium, preferably normal to the direction of shock wave propagation. The output of the gage is a resistivity change history for each material of the gage. Each resistivity change is independent of the others so that three diagonal components of the elastic stress or strain tensor can be calculated from the resistivity measurements.

Inventors:
 [1]
  1. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866587
Patent Number(s):
4744252
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01B - MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
triple-material; stress-strain; resistivity; gage; triple; material; piezoresistive; provides; multi-component; elastic; stress; measurements; foils; materials; ytterbium; manganin; constantan; configured; nested; serpentine; rectilinear; grid; arrangement; embedded; medium; preferably; normal; direction; shock; wave; propagation; output; change; history; independent; diagonal; components; strain; tensor; calculated; resistive material; wave propagation; shock wave; resistivity measurements; resistivity change; /73/

Citation Formats

Stout, Ray B. Triple-material stress-strain resistivity gage. United States: N. p., 1988. Web.
Stout, Ray B. Triple-material stress-strain resistivity gage. United States.
Stout, Ray B. Fri . "Triple-material stress-strain resistivity gage". United States. https://www.osti.gov/servlets/purl/866587.
@article{osti_866587,
title = {Triple-material stress-strain resistivity gage},
author = {Stout, Ray B},
abstractNote = {A triple material piezoresistive gage provides multi-component elastic stress or measurements. Thin foils of three piezoresistive materials, e.g. ytterbium, manganin, and constantan, are configured in a nested serpentine rectilinear grid or other grid arrangement and embedded in a medium, preferably normal to the direction of shock wave propagation. The output of the gage is a resistivity change history for each material of the gage. Each resistivity change is independent of the others so that three diagonal components of the elastic stress or strain tensor can be calculated from the resistivity measurements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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