Results 31 to 40 of about 2,880,469 (188)

Shock Wave Propagation Characteristics of Cylindrical Charge and Its Aspect Ratio Effects on the Damage of RC Slabs

open access: yesAdvances in Materials Science and Engineering, 2021
Antiknock research of reinforced concrete (RC) slabs is often carried out with spherical or nearly spherical explosives, although many explosives used in engineering and military are cylinder shaped.
Xiaohua Zhao   +4 more
doaj   +1 more source

Effect of Equivalent Ratio and Hydrocarbon Ratio on Explosive Characteristics of Synthetic Gas

open access: yesAdvances in Computer and Engineering Technology Research
With the development of society, the importance of energy is increasing day by day, and more and more people realize the importance of energy for social development.Therefore, people began to explore energy utilization, energy exploitation, clean energy and other fields.Therefore, in order to use coal resources cleanly and efficiently and reduce the ...
Lin Hu, Pinkun Guo
openaire   +1 more source

Influence of filling ratio on gas explosion in flameproof chamber

open access: yesMeikuang Anquan, 2023
The maximum explosion pressure and maximum explosion pressure rate produced by different filling ratios in the flameproof chamber are different. In order to study the change characteristics of gas explosion under different filling ratios in flameproof chamber, the flameproof enclosure with a flameproof chamber size of 750 mm×750 mm×600 mm is used as ...
ZHANG Wenqiang   +2 more
openaire   +1 more source

The behavior of the composite multi-layer cylindrical shells subjected to blast load [PDF]

open access: yesJournal of Structural and Construction Engineering, 2017
Today, with the increasing damages of explosion, it is of great significance to assess the performance of structures against such damages that established by explosive load.
Amir Esmaeel Khosravi   +2 more
doaj   +1 more source

Theoretical Approach to Dust Explosion

open access: yesKONA Powder and Particle Journal, 2014
A number of experimental researches on dust explosion have been published with measured data of the explosive characteristics such as the ignition temperature, the flame propagation velocity, the upper and lower limit explosible concentrations and the ...
Tatsuo Tanaka
doaj   +1 more source

Research on deep hole segmented charge cut blasting of rock roadway based on numerical simulation

open access: yesMeitan kexue jishu, 2023
With the increase of the depth of the blast hole, the rock clamping effect at the bottom of the blast hole is enhanced, resulting in low rock breaking efficiency and blast hole utilization.
Chengxiao LI   +5 more
doaj   +1 more source

A Study of the effect of aspect ratio on fragmentation of explosively driven cylinders

open access: yesProcedia Engineering, 2017
The work presented in this paper consists of a parametric study of explosively driven fracture and fragmentation of steel cylinders. The effect of cylinder height to wall thickness ratio on the failure mode and fragment shape is studied using a numerical model based on the meshless Smoothed Particle Hydrodynamics (SPH) method.
Vuyst, TD   +4 more
openaire   +1 more source

Effect of CH4–Air Ratios on Gas Explosion Flame Microstructure and Propagation Behaviors [PDF]

open access: yesEnergies, 2012
To reveal the inner mechanism of gas explosion dynamic behavior affected by gas equivalent concentration, a high speed Schlieren image system and flow field measurement technology was applied to record the gas explosion flame propagation and flame structure transition. The results show that a flame front structure transition occurs, followed by a flame
Xianfeng Chen, Yin Zhang, Ying Zhang
openaire   +3 more sources

Rational speculative bubbles in the Asian stock markets: Tests on deterministic explosive bubbles and stochastic explosive root bubbles [PDF]

open access: yes, 2013
The standard theory of asset pricing, in which a long-run relationship should exist between stock prices and dividends if there are no deterministic explosive bubbles, assumes the constancy of expected returns.
Chen, Yen-Hsiao   +3 more
core   +1 more source

Propagation rules of shock waves in confined space under different initial pressure environments

open access: yesScientific Reports, 2022
In this paper, an initial pressure adjustable explosion vessel was developed, and the effect of negative pressure, positive pressure (0.2–1.8 atm) different initial ambient pressure on the explosive shock wave generated by the explosion of explosives was
F. Q. Wang   +7 more
doaj   +1 more source

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