ABSTRACT
A heat build-up experiment can be defined as a cyclic test during which the temperature of the specimen is measured. The number of cycles used is are the number of cycles needed for the temperature to stabilize. The first difficulty encountered to measure the temperature is linked to the large displacements of the specimen during a fatigue test. The use of thermocouples is to be avoided since this technology presents some limitations (fixation on the specimen, response time). We have chosen to use an infrared camera, which gives access to a 2-D measurements with an interesting acquisition rate (50 frames/seconds), even if it will only be a surface measurement.
