Influence of dimensional proportions of cylindrical explosive on resulting blast wave

• Autorzy: Panowicz R. , Trypolin M. , Konarzewski M.

Identyfikatory

DOI

10.5604/12314005.1217252

• Języki publikacji: EN

Abstrakty

EN

Explosives are broadly used today in many applications, both civilian and military. Many experiments involving explosives use either ball or cylinder charges. However, there can be raised a question whether an exact shape influences the resulting blast wave, and, additionally, if the length to diameter ratio of the cylinder influences the wave. To answer the question, numerical analysis was conducted. A 3D model of the charge was constructed in LS-Prepost software and calculated with use of an explicit FEM method in LS-DYNA software. To determine the change of character of the blast wave, the dimensions of the charge change, whereas the mass and distance from the centre of the charge are constant. Several length to diameter ratios was tested, starting from 0.25, to 2, in 0.25 increments. Two explosives, HMX and TNT, were used. As expected, the resulting Blast wave was different in each case, with 100% difference in pressure values between 0.25 and 2 L to D ratios, especially along the length axis of the cylinder. The results show that the exact diameters of the charges need to be taken into consideration while determining a type of charge to be used as well as determining the goal to be achieved during a particular conducted experiment.

Słowa kluczowe

EN

materials engineering; mechanical engineering

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2016
• Tom: Vol. 23, No. 4
• Strony: 375--380
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Panowicz R.

• Military University of Technology Faculty of Mechanical Engineering Kaliskiego Street 2, 01-476 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Trypolin M.

• Military University of Technology Faculty of Mechanical Engineering Kaliskiego Street 2, 01-476 Warsaw, Poland tel.: [phone], fax: [phone]

autor

Konarzewski M.

• Military University of Technology Faculty of Mechanical Engineering Kaliskiego Street 2, 01-476 Warsaw, Poland tel.: [phone], fax: [phone]

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.