Testing machine in flexion or torsion alternating a constant amplitude of the force or a constant amplitude of deformation

摘要

The tested sample E is held on the one hand by means of a flexible blade 30 equipped with strain gauges 32, on the other hand, by means of an oscillating clevis 8 articulated with one end of a connecting rod 14 whose other end is articulated in an eccentric element 12 whose radial position can be adjusted on a rotating turntable 9, the eccentric position of this eccentric element 12 being slaved to the strain undergone by the sample E via the intermediary of the strain gauges 32 which determine the feed to a motor 21 for radially displacing the element 12. IMAGE