Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1980-04-16
1981-12-08
Ciarlante, Anthony V.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
G01N 1908
Patent
active
043041353
ABSTRACT:
A dual element strain gauge is placed near a welded or otherwise constrained joint on a structural member so as to provide a constraint factor. The location for the strain gauge must be selected to provide constraint factor that is preferably near either maximum or minimum value. The strain gauge is monitored to detect a change in the initial constraint factor, which indicates failure has begun or is imminent.
REFERENCES:
patent: 3136154 (1964-06-01), Christensen
patent: 3596269 (1971-07-01), Laska
patent: 3786679 (1974-01-01), Crites
patent: 3845657 (1974-11-01), Hall et al.
Hawkins Steven E.
Hein, Jr. Norman W.
Oertle Donald H.
Peterson Marvin L.
Ciarlante Anthony V.
Conoco Inc.
Schupbach, Jr. Cortlan R.
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