Test bench (100) with oligoclyclic, and occasionally polycyclic, fatigue to reproduce a support of turbomachine parts, such as a support of at least one blade root on an alveolus seating area of a rotor disk, this bench comprising A test member (126), which, fixed to a frame (108), defines at least one support surface (148), and a test piece (110) that is attached to traction means (104) to request the test specimen to be supported on the or each support surface of the organ, the or each support surface (148) is carried by an element (136) which is rotatably mounted around a first axis (B) on the support member, and the The specimen is connected to the traction means by means of articulation (114) around a second axis (A) substantially perpendicular to the first axis, and which also comprises means for regulating and blocking the element and the specimen in positions around the aforementioned axes.
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