G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 3/06 (2006.01) G01B 5/02 (2006.01) G01B 5/30 (2006.01) G01N 3/08 (2006.01) G01N 33/24 (2006.01)
Patent
CA 2608975
The invention relates to a collar (1) for measuring the lateral deformation of a test piece during uniaxial or triaxial compression tests. According to the invention, the collar (1) comprises a metal hoop (2) or a hoop that is made from composite materials, which can clasp the test piece and which is open, the free ends (3) thereof being separated by a distance .DELTA.. The inventive collar also comprises means (5) for directly or indirectly measuring the distance .DELTA. between the free ends (3) of the hoop (2), said means comprising at least one strain gauge (6).
L'invention est relative à un collier (1) de mesure de la déformation latérale d'une éprouvette lors d'essais de compression uniaxiale ou triaxiale. Selon l'invention, le collier (1) est constitué par un anneau (2) métallique ou un anneau en matériaux composites apte à enserrer ladite éprouvette, ouvert et dont les extrémités libres (3) sont écartées d'une distance .DELTA., ledit collier présentant en outre des moyens (5) de mesure, directement ou indirectement, de l'écartement .DELTA., desdites extrémités libres (3) de l'anneau (2), constitués ar au moins une jauge de contrainte (6) .
Mcfadden Fincham
Universite Des Sciences Et Technologies de Lille
LandOfFree
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