ACOUSTIC EMISSION-BASED APPARATUS FOR TESTING CORROSION RESISTANCE FATIGUE PERFORMANCE

摘要

Provided is an acoustic emission-based apparatus for testing corrosion resistance fatigue performance, comprising: a main machine (100), comprising a frame (110) and a stretching mechanism arranged on the frame; a clamping mechanism (200), comprising a first fixture (210) and a second fixture (220) arranged opposite to the first fixture (210); the first fixture (210) and the second fixture (220) are connected to the stretching mechanism; the stretching mechanism is used for driving the first fixture (210) and the second fixture (220) to move close to or away from each other; the first fixture (210) is provided with an accommodating cavity (211) used for accommodating a corrosive body, the accommodating cavity (211) is provided with an opening (2111) disposed at one end of the first fixture (210) near the second fixture (220), and the first fixture (210) is such that when it holds a test piece (10) in place, the test piece (10) is placed in the accommodating cavity (211); a strain measurement mechanism, comprising a first acoustic emission sensor (310), a second acoustic emission sensor (320), and an acoustic emission meter (340); the first acoustic emission sensor (310) and the second acoustic emission sensor (320) are arranged at intervals along the direction of stretching of the test piece (10); a protective assembly, used for connecting to the test piece (10).