A 2 million cycle fatigue test was performed on an RJ Watson finger joint. The universal test fixture with a long actuator was used to repeat the 28 kip axial load. The 6.25 mile cumulative sliding test was performed successfully on the large movement finger joint specimen. Total displacement exceeded 32 inches employing our large stoke actuator which easily accommodated this displacement. The fixture contained aggregate on the slide surface which provided a realistic wear simulation for the test.
