Zobrazeno 1 - 10
of 2 615
pro vyhledávání: '"shaped charge"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-21 (2024)
Abstract In order to effectively control the large deformation of coal pillar and roadway during entry retained along gob side with small coal pillar, taking 1311 and 1312 working faces of a coal mine in Shanxi Province as engineering background, the
Externí odkaz:
https://doaj.org/article/21e6662a839641e6b8e7e28addeb6e7c
Publikováno v:
Defence Technology, Vol 39, Iss , Pp 168-176 (2024)
Titanium hydride (TiH2), a promising high-energy additive, is doped into PTFE/Al to optimize the energy output structure of the reactive jet and strive for better aftereffect damage ability to the target. Six types of PTFE/Al/TiH2 reactive liners wit
Externí odkaz:
https://doaj.org/article/90715337415e4a2b8ef2687bc69ad06e
Autor:
Ziqi Zhao, Tong Li, Donglin Sheng, Jian Chen, Amin Yan, Yan Chen, Haiying Wang, Xiaowei Chen, Lanhong Dai
Publikováno v:
Defence Technology, Vol 39, Iss , Pp 23-41 (2024)
Shaped charge liner (SCL) has been extensively applied in oil recovery and defense industries. Achieving superior penetration capability through optimizing SCL structures presents a substantial challenge due to intricate rate-dependent processes invo
Externí odkaz:
https://doaj.org/article/f39b508c1755450883284f1090d32394
Publikováno v:
Defence Technology, Vol 38, Iss , Pp 126-135 (2024)
Testing rocket and space technology objects in ground conditions for resistance to the impact of meteoroids and fragments of space debris can be carried out using shaped charges. To substantiate the design parameters of shaped charges that ensure the
Externí odkaz:
https://doaj.org/article/5a0153dc214646d9b76a4da60a459140
Publikováno v:
Технічна інженерія, Vol 1, Iss 93, Pp 316-324 (2024)
Abstract Purpose. Generalization of the results of the author's research on the influence of the shape of the liner on the mass-kinetic characteristics of the jets, the determination of the ways of the final optimization of the design of the charge
Externí odkaz:
https://doaj.org/article/86a16ecda9f442c5a6386c98a9116130
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03805- (2024)
Explosive blasting in tunnel construction may provoke damage to the surrounding rocks, leading to economic and safety concerns. While studies on rock fragmentation mechanisms exist, the innovative mechanism of shaped charge hydrostatic blasting remai
Externí odkaz:
https://doaj.org/article/71549a82cba742c4ba6f08bc0fa5328c
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 3, Pp 129-138 (2024)
In order to solve the problem of poor permeability enhancement effect caused by disorderly expansion of coal cracks in traditional presplitting blasting, the influence of different opening angles of shaped charge blasting cartridge on permeability en
Externí odkaz:
https://doaj.org/article/a83f99f8663849f392d97a56119f5242
Publikováno v:
Georesursy, Vol 25, Iss 2, Pp 245-253 (2024)
Well cement sheath stability analysis for two oil-producing wells in the completion of productive formations by shaped charge perforating was performed. The data of direct measurements of pressures in the borehole at different distances from the cabl
Externí odkaz:
https://doaj.org/article/71e19db07e9e471dac5eb62876cdf6c2
Autor:
Lianhua Wu, Yiping Zhang, Tianliang Hou, Kaixin Liu, Yusong Miao, Jie Li, Xin Zhao, Mei Zhang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract For shaped charge blasting projects in mining, civil engineering, and similar fields, it is proposed to modify the charge structure by combining slotted tubes and shaped charge liners to obtain a new type of charge structure. This aims to ac
Externí odkaz:
https://doaj.org/article/d063e3b84f9d464d855a1860464f2919
Publikováno v:
Defence Technology, Vol 33, Iss , Pp 374-385 (2024)
This paper proposes a type of double-layer charge liner fabricated using chemical vapor deposition (CVD) that has tungsten as its inner liner. The feasibility of this design was evaluated through penetration tests. Double-layer charge liners were fab
Externí odkaz:
https://doaj.org/article/987e5718ce8343dc878703b3a80cd39b