Inspection fixture for evaluating fatigue behavior of test specimen i.e. carbon-fiber-reinforced plastic, for aircraft industry, has detecting unit detecting changes in material of test specimen, and oscillating system coupled with specimen

摘要

The fixture has an oscillating system (1) performing cyclical mechanical excitation of a test specimen (6). A generator (12) generates a drive signal with frequency greater than or equal to 5 kHz. The generator and the oscillating system are joined together such that the drive signal is transmitted to the oscillating system. A detecting unit detects changes in material of the test specimen for a predetermined time. The oscillating system is non-positively coupled with the test specimen. Two supports (7) are arranged relatively to each other and arranged relative to a stamp (4). An independent claim is also included for a method for evaluating fatigue behavior of test specimen i.e. carbon-fiber-reinforced plastic.