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An Extensometer for Circumferential Strains

Authors :
Findley, WN
Reed, RM
Source :
Journal of Testing and Evaluation; July 1975, Vol. 3 Issue: 4 p300-302, 3p
Publication Year :
1975

Abstract

An instrument is described for measuring circumferential strains in plastic specimens of circular cross section. It consists of four direct-current differential transformers (DCDTs) suitably mounted on an invar ring. The DCDTs probe the position of the surface of the specimen at opposite ends of two mutually perpendicular diameters. Examples of performance are given for creep of a thin-walled tube of polyurethane.

Details

Language :
English
ISSN :
00903973
Volume :
3
Issue :
4
Database :
Supplemental Index
Journal :
Journal of Testing and Evaluation
Publication Type :
Periodical
Accession number :
ejs18157288
Full Text :
https://doi.org/10.1520/JTE10659J