Ultrasonic Evaluation and Fractal Analyses of the Impact Damage in Polymer Bonded Explosives

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)
会议录名称	Proceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials
	2003
会议名称	Proceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials
会议日期	October 15, 2003 - October 18, 2003
会议地点	Guilin, China
摘要	The 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.
关键词	Fractal Analysis Impact Damage Polymer Bonded Explosives Ultrasonic Evaluation
WOS记录号	WOS:000188997600060
收录类别	CPCI-S ; EI
语种	英语
引用统计
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/60270
专题	力学所知识产出(1956-2008)
推荐引用方式 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]Proceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials,2003.

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