Fiber Reinforced Plastics/Composites ›› 2016, Vol. 0 ›› Issue (12): 23-27.

• BASIC STUDY • Previous Articles     Next Articles

INVESTIGATION ON THE ACOUSTIC EMISSION CHARACTERISTICS DURING THE DAMAGE OF GLASS FIBER COMPOSITE

MENG Chao1, PENG Wei-dong1, NING Xiao-bo2, TANG Qing-ru1   

  1. 1.Aeronautical Engineering Institute, Civil Aviation Flight University of China, Guanghan 618307, China;.2.Sichuan Aircraft Maintenance Engineering Ltd.., Co.., Chengdu 610200, China
  • Received:2016-06-28 Online:2016-12-31 Published:2016-12-31

Abstract: Glass fiber composite materials are widely used in aerospace, automobile manufacturing and other fields because of its superior performance in structure. A set of acoustic emission detection system consist of TMS320F28335, storage and display were designed based on the damage properties of glass fiber composite materials and the characteristics of AE signals. The waveform and frequency characteristics of acoustic emission signal are analyzed by the time frequency analysis method of modern wavelet transform, and three main frequency bands and corresponding three basic damage modes of the glass fiber composite acoustic emission signal frequency are determined.

Key words: acoustic emission, glass fiber composites, detection, wavelet analysis

CLC Number: