Journal of Inorganic Materials

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Characterizing Damage Evolution of Three-dimensional Braided C/SiC Composite with AE Technology

PAN Wen-Ge; JIAO Gui-Qiong; WANG Bo; GUAN Guo-Yang   

  1. Department of Engineering Mechanics; Northwestern Polytechnical University; Xi an 710072; China
  • Received:2003-06-23 Revised:2003-07-28 Published:2004-07-20 Online:2004-07-20

Abstract: An approach toanalyze the tensile behavior and damage evolution of three-dimensional braided C/SiC composite.Monotonic tensile tests were performed. Acoustic emission (AE) was used to monitor damage extension during test.Damage evolution was analyzed and different damage phases were determined by AE characteristic parameters data. Critical damage stress described with AE cumulates energy waw also defined.

Key words: C/SiC composite, 3-D braid, acoustic emission(AE), damage evolution

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