IMECH-IR  > 力学所知识产出(1956-2008)
Ultrasonic Evaluation and Fractal Analyses of the Impact Damage in Polymer Bonded Explosives
Dai KD; Chen PW; Yang J; Huang FL; Ding YS(丁雁生)
Source PublicationProceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials
2003
Conference NameProceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials
Conference DateOctober 15, 2003 - October 18, 2003
Conference PlaceGuilin, China
AbstractThe damage properties of polymer bonded explosives under dynamic loading were studied by using ultrasonic evaluation and fractal analysis. Explosive samples were damaged by a long-pulse low-velocity gas gun with a gas buffer under different impact velocities. The microstructures of the samples before and after impact were examined by use of polarized light microscopy. The optical micrographs were analyzed using image processing and fractal theory. Ultrasonic examination was carried out using a pulse through-transmission method. Spectra analyses were carried out using fast Fourier transform(FFT). Characteristic ultrasonic parameters including ultrasonic pulse velocities, attenuation coefficients, spectra area and master frequency were obtained. The correlation between the impact damage and ultrasonic parameters were analyzed. The results show that both ultrasonic parameters and fractal dimension can be used to quantitatively assess the impact damage of plastic bonded explosives.
KeywordFractal Analysis Impact Damage Polymer Bonded Explosives Ultrasonic Evaluation
WOS IDWOS:000188997600060
Indexed ByCPCI-S ; EI
Language英语
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Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60270
Collection力学所知识产出(1956-2008)
Recommended Citation
GB/T 7714
Dai KD,Chen PW,Yang J,et al. Ultrasonic Evaluation and Fractal Analyses of the Impact Damage in Polymer Bonded Explosives[C],2003.
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