Patent ID: 8408068

Claim:
A device for testing a coating capable of coating a turbomachine rotor blade root, the device comprising: two test piece halves, each including a bearing surface coated with the coating; one counter test piece including two bearing surfaces; and a test machine comprising a first holding system that holds the counter test piece along a tensile axis, a second holding system that holds the test piece halves around the counter test piece, and tensile means for subjecting the holding systems to predetermined tensile cycles along the tensile axis, during which tensile strain is transmitted from one holding system to the other via the respective bearing surfaces contacting each other of the counter test piece and the test piece halves, and wherein the second holding system comprises resilient return means allowing for the two test piece halves to open up in a direction perpendicular to the tensile direction in response to an opening force applied to these two test piece halves by the counter test piece during a tensile cycle.