The Measurement of Large Strains With Foil Resistance Strain Gages

reportActive / Technical Report | Accession Number: ADA133687 | Open PDF

Abstract:

Gas factor changes in foil resistance strain gages were observed and measured. Errors due to these changes are discussed and corrections for the gages studied were determined. Residual volume changes during plastic deformation in 7039 Aluminum Alloy and S-7 tool steel were shown to be small and unmeasurable with the gages used. The gage factor changes were assumed to be the result of plastic work in the gage material. Estimates of the magnitude of the resistance changes due to plastic deformation in constantan were made using tension experiments on wires.

Author(s):
Franz, Robert E.
Author Organization(s):
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
Descriptive Note:
Technical rept.
Supplementary Note:
DOI: 10.21236/ADA133687
Pagination:
0037

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ARBRL-TR-02519
Monitor Series:
BRL
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_5.2_Understand; JCA_4.6_Engineering; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5.3_Planning; JCA_1.2.7_Experimentation; JCA_6_Net Centric; JCA_6.4.1_Secure Information Exchange
Modernization Areas:
Microelectronics; Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FOILS(MATERIALS), *PLASTIC DEFORMATION, *RESISTANCE, *STRAIN GAGES, *STRAIN(MECHANICS), ALUMINUM ALLOYS, DENSITY, STEEL, STRAIN RATE
Field(s)/Group(s):
Metallurgy and Metallography, Test Facilities, Equipment and Methods, Mechanics
Keyword(s):
7039 ALUMINUM ALLOY, S 7 TOOL STEEL
Report Date:
1983 Aug 01