Two clamps comprises in the traction-compression machine,

specimen uniformly stressed in push-pull machines

Laboratory for physical and mechanical tests (Traction-compression, fatigue, dynamic, abrasion, etc.).

The pressure pallets (1) and the support pallets (2) are respectively connected to each other by means of traction-pressure tie elements (11) forming a static assembly.

The run-flat device can support an applied load by working in tension and compression.

As is known, the aircraft skin undergoes repeated tension-compression load.

The basket assembly (17) has electrodes (23) carried thereby which are adapted to be moved into engagement with the wall of the heart via a push-pull element (31).

The device can have at least four support elements (20) arranged around the central longitudinal axis (Mv) in order to absorb the traction and pressure forces.

The invention relates to a threaded device (7) embodied in the form of an anti-twisting stop which is rotatably connected to a traction-pressure rod.

The inventive method can be used to examine materials subjected to bending and traction/compression stresses at different temperatures ranging from atmospheric temperature to 1000 °C and at a high frequency.

A driving mechanism provided with a flexible driving means (17) comprises a traction-compression cable (3) on which members (31) are threaded like beads.