PLANT FOR FATIGUE TEST OF MATERIAL SPECIMENS Russian patent published in 2009 - IPC G01N3/32 

FIELD: testing equipment.

SUBSTANCE: invention refers to testing equipment, to strength tests. Plant for fatigue test of material specimens includes base, guide located on it, two grippers for specimen, inertia loads connected to grippers, two pushers connected to loads by means of fixtures, forth-and-back movement drive rigidly connected to one of the pushers, and device for kinematic connection of pushers to each other. At that, device for kinematic connection of pushers to each other is made in the form of two-arm lever, each arm of which is hinged to the appropriate pusher thus providing turn and axial movement, and support of lever is installed between pushers thus providing movement perpendicular to direction of pushers movement.

EFFECT: increasing amount of received information by providing tests both at stepped and smooth change of parametres of loading cycles without changing frequency of cycles.

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