Research into the Energy Output of Asymmetric Cylindrical Structure under Internal Explosion Loading
College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China
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Energies 2018, 11(4), 967; https://doi.org/10.3390/en11040967
Received: 26 February 2018 / Revised: 11 April 2018 / Accepted: 14 April 2018 / Published: 18 April 2018
The energy output characteristic of an asymmetric cylindrical structure under internal explosion loading has significant research value in the field of the national defense industry. This paper took the D-shaped structure as the research object. Three groups of experiments (D-90°, D-120°, D-150°) were carried out. The D-shaped structure showed that fragments are concentrated in the middle and are sparse on both sides. Moreover, the fragment density decreased with the increase of the azimuth angle. The fragment velocities, which were measured from high-speed photography and an oscilloscope, coincided well with each other, and decreased with an increase in the central angle. Compared with the cylindrical structure, the fragment energy gain of the D-shaped structure is significant; the total energy and energy density of the three D-shaped structures were very close to each other. This indicates that D-120° is the optimal solution among the three D-shaped structures and it can provide guidance for the future design of D-shaped structures to achieve higher energy output.
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Keywords:
energy output; asymmetric cylindrical structure; internal explosion loading; fragment velocity; spatial distribution of fragment
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MDPI and ACS Style
Ding, L.; Li, Z.; Lu, F.; Li, X. Research into the Energy Output of Asymmetric Cylindrical Structure under Internal Explosion Loading. Energies 2018, 11, 967.
AMA Style
Ding L, Li Z, Lu F, Li X. Research into the Energy Output of Asymmetric Cylindrical Structure under Internal Explosion Loading. Energies. 2018; 11(4):967.
Chicago/Turabian StyleDing, Liangliang; Li, Zhenduo; Lu, Fangyun; Li, Xiangyu. 2018. "Research into the Energy Output of Asymmetric Cylindrical Structure under Internal Explosion Loading" Energies 11, no. 4: 967.
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