COLLAR FOR MEASURING THE LATERAL DEFORMATION OF A TEST PIECE DURING COMPRESSION TESTS, SUCH AS UNIAXIAL OR TRIAXIAL COMPRESSION TESTS

The invention relates to a collar for measuring the lateral deformation of a test piece during uniaxial or triaxial compression tests. According to the invention, the collar includes a metal hoop or a hoop that is made from composite materials, which can clasp the test piece and which is open. The f...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	SECQ, JEAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	The invention relates to a collar for measuring the lateral deformation of a test piece during uniaxial or triaxial compression tests. According to the invention, the collar includes a metal hoop or a hoop that is made from composite materials, which can clasp the test piece and which is open. The free ends thereof are separated by a distance . The inventive collar also includes a mechanism for directly or indirectly measuring the distance . Between the free ends of the hoop, the mechanism includes at least one strain gauge.