2020 Vol. 40, No. 9
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2020, 40(9): 092301.
doi: 10.11883/bzycj/2020-0016
Abstract:
To evaluate the fast cook-off safety characteristic of the big-size penetrator, an experimental device was designed. The penetrator with a mass of 290 kg was hoisted at a height of 0.4 m from the aviation fuel level for rapid heating. The surface tem...
To evaluate the fast cook-off safety characteristic of the big-size penetrator, an experimental device was designed. The penetrator with a mass of 290 kg was hoisted at a height of 0.4 m from the aviation fuel level for rapid heating. The surface tem...
2020, 40(9): 092302.
doi: 10.11883/bzycj-2019-0395
Abstract:
Nano titanium carbide (TiC) powder was synthesized by detonation shock utilizing octogen (HMX) as high temperature and high pressure source with titanium dioxide (TiO2) and activated carbon (C) as precursors. The samples were characterized by X-ray d...
Nano titanium carbide (TiC) powder was synthesized by detonation shock utilizing octogen (HMX) as high temperature and high pressure source with titanium dioxide (TiO2) and activated carbon (C) as precursors. The samples were characterized by X-ray d...
2020, 40(9): 093101.
doi: 10.11883/bzycj-2020-0015
Abstract:
Research of concrete materials subjected to tensile stress wave at high strain rates is currently based on splitting experiments and spalling experiments with a split Hopkinson pressure bar device, however, they are not appropriate to study the stres...
Research of concrete materials subjected to tensile stress wave at high strain rates is currently based on splitting experiments and spalling experiments with a split Hopkinson pressure bar device, however, they are not appropriate to study the stres...
2020, 40(9): 093102.
doi: 10.11883/bzycj-2019-0432
Abstract:
A 37 mm-diameter split Hopkinson pressure bar (SHPB) apparatus was used to conduct impact tests on two types of coral sand to investigate the effect of strain rate. One-dimensional compressive stress-strain curves with the strain rates ranging from 4...
A 37 mm-diameter split Hopkinson pressure bar (SHPB) apparatus was used to conduct impact tests on two types of coral sand to investigate the effect of strain rate. One-dimensional compressive stress-strain curves with the strain rates ranging from 4...
2020, 40(9): 093201.
doi: 10.11883/bzycj-2019-0448
Abstract:
In order to study the crack growth and crack arrest law of the brittle materials, a large-sized trapezoidal opening crack with arc bottom (TOCAB) configuration specimen was proposed. The impact tests were carried out on the TOCAB specimens with radia...
In order to study the crack growth and crack arrest law of the brittle materials, a large-sized trapezoidal opening crack with arc bottom (TOCAB) configuration specimen was proposed. The impact tests were carried out on the TOCAB specimens with radia...
2020, 40(9): 093301.
doi: 10.11883/bzycj-2019-0439
Abstract:
With the development of hypervelocity kinetic energy weapons, the mechanism of long rod hypervelocity penetration into concrete target was a research highlight. To study the penetration mechanism and the crater law of long rod hypervelocity penetrati...
With the development of hypervelocity kinetic energy weapons, the mechanism of long rod hypervelocity penetration into concrete target was a research highlight. To study the penetration mechanism and the crater law of long rod hypervelocity penetrati...
2020, 40(9): 095101.
doi: 10.11883/bzycj-2020-0011
Abstract:
In order to study in depth the structural response of the bottom protective component of the vehicles under blast loading and improve the blast resistant performance of the protective vehicles, a finite element model of the bottom protective componen...
In order to study in depth the structural response of the bottom protective component of the vehicles under blast loading and improve the blast resistant performance of the protective vehicles, a finite element model of the bottom protective componen...
2020, 40(9): 095201.
doi: 10.11883/bzycj-2019-0471
Abstract:
In order to solve the problem of poor performance of EMD (empirical mode decomposition） filter de-noising for vibration signal, an adaptive orthogonal decomposition signal de-noising method PEMD (principal empirical mode decomposition) is proposed. T...
In order to solve the problem of poor performance of EMD (empirical mode decomposition） filter de-noising for vibration signal, an adaptive orthogonal decomposition signal de-noising method PEMD (principal empirical mode decomposition) is proposed. T...
2020, 40(9): 095202.
doi: 10.11883/bzycj-2020-0003
Abstract:
In order to study the influence of weak dynamic disturbance on rockburst, test on cubic medium-coarse grained granite specimen with a circle hole was conducted to simulate the rockburst ejection process in circle tunnel subjected to weak dynamic dist...
In order to study the influence of weak dynamic disturbance on rockburst, test on cubic medium-coarse grained granite specimen with a circle hole was conducted to simulate the rockburst ejection process in circle tunnel subjected to weak dynamic dist...
2020, 40(9): 095203.
doi: 10.11883/bzycj-2019-0367
Abstract:
In the process of freezing vertical shaft blasting, the baseline drift and noise in the near area monitoring signal have significant influence on the fine extraction of local characteristics. On the basis of effective acquisition of shaft lining vibr...
In the process of freezing vertical shaft blasting, the baseline drift and noise in the near area monitoring signal have significant influence on the fine extraction of local characteristics. On the basis of effective acquisition of shaft lining vibr...
2020, 40(9): 095401.
doi: 10.11883/bzycj-2020-0009
Abstract:
To analyze the effect of porous materials on the explosion characteristics of premixed gas, a self-built explosion experiment platform was used to investigate the behavior of porous materials with different porosities and thicknesses on premixed meth...
To analyze the effect of porous materials on the explosion characteristics of premixed gas, a self-built explosion experiment platform was used to investigate the behavior of porous materials with different porosities and thicknesses on premixed meth...
2020, 40(9): 095901.
doi: 10.11883/bzycj-2019-0399
Abstract:
The dynamic response of buried high density polyethylene (HDPE) bellows under blasting seismic load was studied. First, the blasting test of buried pipeline was carried out by combining the blasting seismic test and dynamic strain test. Secondly, the...
The dynamic response of buried high density polyethylene (HDPE) bellows under blasting seismic load was studied. First, the blasting test of buried pipeline was carried out by combining the blasting seismic test and dynamic strain test. Secondly, the...
