2021 Vol. 41, No. 7
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2021, 41(7): 071101.
doi: 10.11883/bzycj-2021-0023
Abstract:
Based on the research of Academician Tan Tjong-Kie on the long-term stability mechanics of underground tunnel and considering Academician Sadovsky’s structural hierarchy theories on complex geological rock masses, the inherent statistical mechanical ...
Based on the research of Academician Tan Tjong-Kie on the long-term stability mechanics of underground tunnel and considering Academician Sadovsky’s structural hierarchy theories on complex geological rock masses, the inherent statistical mechanical ...
2021, 41(7): 071102.
doi: 10.11883/bzycj-2020-0388
Abstract:
The damage mechanisms of structures under internal blast are important for the prediction and evaluation of damage effects of conventional weapons and the design of anti-explosion structures of buildings and ships. The researches status and existing ...
The damage mechanisms of structures under internal blast are important for the prediction and evaluation of damage effects of conventional weapons and the design of anti-explosion structures of buildings and ships. The researches status and existing ...
2021, 41(7): 072101.
doi: 10.11883/bzycj-2020-0140
Abstract:
On the basis of revealing the effects of equivalence ratio on flame morphology, radius and maximum explosion overpressure, this work was aimed at establishing a theoretical model to predict hydrogen cloud explosion overpressure by considering self-ac...
On the basis of revealing the effects of equivalence ratio on flame morphology, radius and maximum explosion overpressure, this work was aimed at establishing a theoretical model to predict hydrogen cloud explosion overpressure by considering self-ac...
2021, 41(7): 072301.
doi: 10.11883/bzycj-2020-0215
Abstract:
The accumulation form of propellant grains has a great effect on the initial chamber pressure wave in the ignition and flame-spreading process of a modular charge. In this process, the grains distribution is determined by the dynamic characteristics ...
The accumulation form of propellant grains has a great effect on the initial chamber pressure wave in the ignition and flame-spreading process of a modular charge. In this process, the grains distribution is determined by the dynamic characteristics ...
2021, 41(7): 072302.
doi: 10.11883/bzycj-2020-0236
Abstract:
The amplitude-frequency characters of the seismic wave excited by the explosive source directly affect the seismic exploration accuracy. In order to reveal the characteristic law of the amplitude and frequency of the seismic wave field excited by an ...
The amplitude-frequency characters of the seismic wave excited by the explosive source directly affect the seismic exploration accuracy. In order to reveal the characteristic law of the amplitude and frequency of the seismic wave field excited by an ...
2021, 41(7): 073101.
doi: 10.11883/bzycj-2020-0198
Abstract:
The phenomena of repeated impacts are very common, especial in the field of ship and ocean engineering. When the ship structures suffering from repeated impact loadings, the deformation and damages will accumulate, leading to failure even damage of t...
The phenomena of repeated impacts are very common, especial in the field of ship and ocean engineering. When the ship structures suffering from repeated impact loadings, the deformation and damages will accumulate, leading to failure even damage of t...
2021, 41(7): 073201.
doi: 10.11883/bzycj-2020-0136
Abstract:
Bubble curtain is an important means for protection against underwater explosion shock wave. It is of great significance to study the mechanism and technical parameters of bubble curtain regarding the safety and application of underwater blasting. By...
Bubble curtain is an important means for protection against underwater explosion shock wave. It is of great significance to study the mechanism and technical parameters of bubble curtain regarding the safety and application of underwater blasting. By...
2021, 41(7): 073301.
doi: 10.11883/bzycj-2020-0191
Abstract:
In order to study the influence of the cavity on the explosion effect caused by the penetration of concrete target, model tests of penetration and explosion of concrete target at the velocity of 450–700 m/s were carried out. Based on 10 sets of test ...
In order to study the influence of the cavity on the explosion effect caused by the penetration of concrete target, model tests of penetration and explosion of concrete target at the velocity of 450–700 m/s were carried out. Based on 10 sets of test ...
2021, 41(7): 073302.
doi: 10.11883/bzycj-2020-0247
Abstract:
To investigate the strain rate sensitivity of mechanical properties and the breaking mechanisms of brittle hollow particles (BHPs) at mesoscopic level, low-velocity impact tests and the corresponding numerical simulation using finite element method (...
To investigate the strain rate sensitivity of mechanical properties and the breaking mechanisms of brittle hollow particles (BHPs) at mesoscopic level, low-velocity impact tests and the corresponding numerical simulation using finite element method (...
2021, 41(7): 073303.
doi: 10.11883/bzycj-2020-0219
Abstract:
An experimental study on the impact force and penetration of falling rocks with three typical shapes, including spherical, conical and flat shapes, against the cushion was carried out. The experimental results show that the shape of the falling rock ...
An experimental study on the impact force and penetration of falling rocks with three typical shapes, including spherical, conical and flat shapes, against the cushion was carried out. The experimental results show that the shape of the falling rock ...
A rapid system identification method for measuring explosion heat by the constant temperature method
2021, 41(7): 074101.
doi: 10.11883/bzycj-2020-0249
Abstract:
In order to reduce the risk of measurement failure caused by system failure in the classical constant temperature method for measuring explosion heat, a measurement method was developed for identifying the explosion heat value based on the water temp...
In order to reduce the risk of measurement failure caused by system failure in the classical constant temperature method for measuring explosion heat, a measurement method was developed for identifying the explosion heat value based on the water temp...
2021, 41(7): 074201.
doi: 10.11883/bzycj-2020-0220
Abstract:
In order to study the fracture mechanism of the projectile melted by the electron beam, a parameterized modeling method based on the micromechanical characteristics of the projectile was proposed. Scanning electron microscope and hardness tester were...
In order to study the fracture mechanism of the projectile melted by the electron beam, a parameterized modeling method based on the micromechanical characteristics of the projectile was proposed. Scanning electron microscope and hardness tester were...
2021, 41(7): 075101.
doi: 10.11883/bzycj-2021-0059
Abstract:
To study the blast resistance and damage rule of ultra-high toughness cementitious composites (UHTCC) subjected to blast by embedded explosives, blast resistance tests of embedded explosives were carried out on UHTCC and high-strength concrete (HSC) ...
To study the blast resistance and damage rule of ultra-high toughness cementitious composites (UHTCC) subjected to blast by embedded explosives, blast resistance tests of embedded explosives were carried out on UHTCC and high-strength concrete (HSC) ...
2021, 41(7): 075201.
doi: 10.11883/bzycj-2020-0214
Abstract:
The topics such as fragmentation degree, active energy consumption and energy consumption efficiency of rock mass under explosive load have attracted increasing attention in recent years. However, it is very difficult to conduct such research due to ...
The topics such as fragmentation degree, active energy consumption and energy consumption efficiency of rock mass under explosive load have attracted increasing attention in recent years. However, it is very difficult to conduct such research due to ...
2021, 41(7): 075301.
doi: 10.11883/bzycj-2020-0197
Abstract:
A theoretical model for shock wave propagation was established to study the airflow in the gap between the base and cladding plates of explosive welding, and the gas shock wave channel effect between the base and cladding plates was proposed and expl...
A theoretical model for shock wave propagation was established to study the airflow in the gap between the base and cladding plates of explosive welding, and the gas shock wave channel effect between the base and cladding plates was proposed and expl...
