Triple-material stress-strain resistivity gage

Patent · Tue May 17 00:00:00 EDT 1988

OSTI ID:7266209

Stout, R B

A triple material piezoresistive gage provides multi-component elastic stress measurements is disclosed. 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. 4 figs.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 4744252; A
• Application Number: PPN: US 7-051560
• OSTI ID: 7266209
• Resource Relation: Patent File Date: 19 May 1987
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
42 ENGINEERING
STRAIN GAGES
DESIGN
ELASTICITY
MATERIALS
MEASURING METHODS
PIEZOELECTRICITY
ELECTRICITY
MEASURING INSTRUMENTS
MECHANICAL PROPERTIES
TENSILE PROPERTIES
440800* - Miscellaneous Instrumentation- (1990-)
420500 - Engineering- Materials Testing