2022 Vol. 42, No. 8
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2022, 42(8): 082201.
doi: 10.11883/bzycj-2021-0326
Abstract:
In order to investigate the temporal and spatial distribution of the stress wave in the soil produced by buried explosion, the ANSYS/AUTODYN software was employed for modelling and simulation, and the ground shock effect of explosion in soil was anal...
In order to investigate the temporal and spatial distribution of the stress wave in the soil produced by buried explosion, the ANSYS/AUTODYN software was employed for modelling and simulation, and the ground shock effect of explosion in soil was anal...
2022, 42(8): 082202.
doi: 10.11883/bzycj-2021-0281
Abstract:
In the current design of the dynamic damage field of the fragment warheads, the central blind area effect is regarded as an essential factor affecting the warhead damage efficiency improvement. The axially-enhanced warhead has become an important des...
In the current design of the dynamic damage field of the fragment warheads, the central blind area effect is regarded as an essential factor affecting the warhead damage efficiency improvement. The axially-enhanced warhead has become an important des...
2022, 42(8): 083101.
doi: 10.11883/bzycj-2022-0145
Abstract:
Shell nacre is a nature material with high strength and toughness, and the excellent performance is mainly derived from multi-scale, multi-hierarchy with “brick and mortar” structure. Inspired by the special structure of shell, a finite element model...
Shell nacre is a nature material with high strength and toughness, and the excellent performance is mainly derived from multi-scale, multi-hierarchy with “brick and mortar” structure. Inspired by the special structure of shell, a finite element model...
2022, 42(8): 083102.
doi: 10.11883/bzycj-2021-0456
Abstract:
The influence of assembly cushions on the fracture of an expanding metal cylindrical shell was studied. The velocity of the outer surface of the shell with or without a cushion in it was measured by a Doppler pins system (DPS) array, and images with ...
The influence of assembly cushions on the fracture of an expanding metal cylindrical shell was studied. The velocity of the outer surface of the shell with or without a cushion in it was measured by a Doppler pins system (DPS) array, and images with ...
2022, 42(8): 083201.
doi: 10.11883/bzycj-2021-0450
Abstract:
The detonation position and the shape of the explosive have a significant influence on the pressure of the underwater explosion shock wave, which makes it possible to use a small charge to form a shock wave that is equivalent to a large charge in a l...
The detonation position and the shape of the explosive have a significant influence on the pressure of the underwater explosion shock wave, which makes it possible to use a small charge to form a shock wave that is equivalent to a large charge in a l...
2022, 42(8): 083202.
doi: 10.11883/bzycj-2021-0444
Abstract:
To investigate the mechanics, deformation, and energy evolution characteristics of concrete under dynamic loading, impact compression tests at impact velocities of 5, 6, and 7 m/s, and splitting tensile tests at 4 m/s were carried out on concrete spe...
To investigate the mechanics, deformation, and energy evolution characteristics of concrete under dynamic loading, impact compression tests at impact velocities of 5, 6, and 7 m/s, and splitting tensile tests at 4 m/s were carried out on concrete spe...
2022, 42(8): 083301.
doi: 10.11883/bzycj-2021-0251
Abstract:
To study the crater’s characteristics of carbon fiber/epoxy composite targets at the impact velocity of 3.0－6.5 km/s, experiments of some composite targets impacted by spherical aluminum projectiles were carried out by applying a two-stage light gas ...
To study the crater’s characteristics of carbon fiber/epoxy composite targets at the impact velocity of 3.0－6.5 km/s, experiments of some composite targets impacted by spherical aluminum projectiles were carried out by applying a two-stage light gas ...
2022, 42(8): 083302.
doi: 10.11883/bzycj-2021-0294
Abstract:
To study the crater effect of the projectile penetrating a thick concrete target, the crater phenomenon in the penetration test was summarized, the predictive effect of the empirical formula on the crater depth, crater diameter, and crater angle was ...
To study the crater effect of the projectile penetrating a thick concrete target, the crater phenomenon in the penetration test was summarized, the predictive effect of the empirical formula on the crater depth, crater diameter, and crater angle was ...
2022, 42(8): 083303.
doi: 10.11883/bzycj-2021-0389
Abstract:
In order to study the damage mechanism of the shaped charge warhead with a combined charge liner to the water containing composite structure, the formation and penetration process of the penetrator formed by the combined charge liner were studied bas...
In order to study the damage mechanism of the shaped charge warhead with a combined charge liner to the water containing composite structure, the formation and penetration process of the penetrator formed by the combined charge liner were studied bas...
2022, 42(8): 083304.
doi: 10.11883/bzycj-2021-0336
Abstract:
A 12.7-mm projectile may remain intact or be broken during penetrating into steel targets with different strengths. However, previous simulations were limited to simulating a single situation. To break this limitation, the numerical simulation method...
A 12.7-mm projectile may remain intact or be broken during penetrating into steel targets with different strengths. However, previous simulations were limited to simulating a single situation. To break this limitation, the numerical simulation method...
2022, 42(8): 084101.
doi: 10.11883/bzycj-2021-0343
Abstract:
Aiming at the problem that the initiation mode of the explosion device is highly dependent on the gunpowder products in the simulation experiments of large-scale underground explosions in a vacuum chamber, and based on the similarity theory of underg...
Aiming at the problem that the initiation mode of the explosion device is highly dependent on the gunpowder products in the simulation experiments of large-scale underground explosions in a vacuum chamber, and based on the similarity theory of underg...
2022, 42(8): 084201.
doi: 10.11883/bzycj-2022-0342
Abstract:
When the structural wall moves over a fixed grid, the structure coverage will change, resulting in many dead and emerging elements. To avoid the influence of malformation and reconstruction of body-fitted grids on the calculation efficiency and accur...
When the structural wall moves over a fixed grid, the structure coverage will change, resulting in many dead and emerging elements. To avoid the influence of malformation and reconstruction of body-fitted grids on the calculation efficiency and accur...
2022, 42(8): 085201.
doi: 10.11883/bzycj-2021-0324
Abstract:
In order to deeply explore the propagation and attenuation law of column charge blasting stress waves or seismic waves, and to improve the prediction model of the blasting peak vibration velocity, a theoretical study on the blasting peak vibration ve...
In order to deeply explore the propagation and attenuation law of column charge blasting stress waves or seismic waves, and to improve the prediction model of the blasting peak vibration velocity, a theoretical study on the blasting peak vibration ve...
2022, 42(8): 085202.
doi: 10.11883/bzycj-2021-0316
Abstract:
The collapse of the support part and break in the air of the reinforced concrete chimney during blasting demolition seriously affect engineering safety. Monitoring and analysis of a 180m chimney demolition were carried out to analyze the mechanism of...
The collapse of the support part and break in the air of the reinforced concrete chimney during blasting demolition seriously affect engineering safety. Monitoring and analysis of a 180m chimney demolition were carried out to analyze the mechanism of...
