YAN Shi, LU Xia-mei, ZENG Tao. Low-velocity Impact and Residual Compressive Properties of Composite Laminates Based on AE[J]. 2014, 19(1): 112-116.DOI: 10.15938/j.jhust.2014.01.005.
The low-velocity impact and compressive failure processes of composite laminate were investigatedby the acoustic emission ( AE) technique in this paper. The test procedure was monitored by the acoustic emission( AE) technique. Combined with load-displacement curve during testing,the AE energy,amplitude and the peak frequency of a dominant frequency band after treated with the fast Fourier transform( FFT) were analyzed. The fre-quency spectrums of the waveforms for the type signals were discussed. Results reveal that the behavior of AE pa-rameters described well the damage process on the low-velocity impact and residual compressive behaviors of thecomposite laminates.