2020 Vol. 40, No. 5
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2020, 40(5): 052201.
doi: 10.11883/bzycj-2019-0150
Abstract:
In this paper, the dynamical behavior of metal interface instability driven by implosion in cylindrical convergent geometry is numerically investigated by using an in-house high-fidelity detonation and shock wave program. The results indicate that, i...
In this paper, the dynamical behavior of metal interface instability driven by implosion in cylindrical convergent geometry is numerically investigated by using an in-house high-fidelity detonation and shock wave program. The results indicate that, i...
2020, 40(5): 052202.
doi: 10.11883/bzycj-2019-0091
Abstract:
In order to study the interaction between running cracks and voids in the offset distance of different prefabricated cracks, setting the offset distance of the pre-crack as the unique variables, do impact three-point bending test on PMMA specimens wi...
In order to study the interaction between running cracks and voids in the offset distance of different prefabricated cracks, setting the offset distance of the pre-crack as the unique variables, do impact three-point bending test on PMMA specimens wi...
2020, 40(5): 052203.
doi: 10.11883/bzycj-2019-0364
Abstract:
To further investigate the failure mechanism of geotechnical materials under implosion loading, a novel blasting crack detection algorithm is proposed in this paper, the digital image correlation method is used to measure the surface displacement fie...
To further investigate the failure mechanism of geotechnical materials under implosion loading, a novel blasting crack detection algorithm is proposed in this paper, the digital image correlation method is used to measure the surface displacement fie...
2020, 40(5): 052301.
doi: 10.11883/bzycj-2019-0321
Abstract:
In order to investigate the changes of the internal physical fields of melt-castable explosives in cook-off, Composition B was chosen as the object. A complete viscosity model of Composition B based on the Bingham flow model was first established, an...
In order to investigate the changes of the internal physical fields of melt-castable explosives in cook-off, Composition B was chosen as the object. A complete viscosity model of Composition B based on the Bingham flow model was first established, an...
2020, 40(5): 053101.
doi: 10.11883/bzycj-2019-0351
Abstract:
Basalt fiber engineered cementitious composites (BF-ECCs) were prepared by using a certain ratio of basalt fiber and cement-based material. The prepared material showed multiple cracks in static tensile test and its tensile strain was above 0.5%. For...
Basalt fiber engineered cementitious composites (BF-ECCs) were prepared by using a certain ratio of basalt fiber and cement-based material. The prepared material showed multiple cracks in static tensile test and its tensile strain was above 0.5%. For...
2020, 40(5): 053102.
doi: 10.11883/bzycj-2018-0401
Abstract:
To study the dynamic splitting tensile fracture behaviors of concrete at elevated temperatures, the numerical meso-scale model and method are established by considering the coupling effects of the high temperature degradation and strain rate enhancem...
To study the dynamic splitting tensile fracture behaviors of concrete at elevated temperatures, the numerical meso-scale model and method are established by considering the coupling effects of the high temperature degradation and strain rate enhancem...
2020, 40(5): 053103.
doi: 10.11883/bzycj-2019-0410
Abstract:
Based on the flat-joint bonding model, the PFC (particle flow code) particle flow discrete model of porous ferroelectric ceramics under one-dimensional strain shock compression was established. The free-surface velocity profiles measured in plate imp...
Based on the flat-joint bonding model, the PFC (particle flow code) particle flow discrete model of porous ferroelectric ceramics under one-dimensional strain shock compression was established. The free-surface velocity profiles measured in plate imp...
2020, 40(5): 053301.
doi: 10.11883/bzycj-2019-0291
Abstract:
Ceramics are widely used in armors because of high strength, low density and excellent ballistic performance. When long rods impact the ceramics, the long rods will flow radially along the ceramic surfaces without significant penetration. The special...
Ceramics are widely used in armors because of high strength, low density and excellent ballistic performance. When long rods impact the ceramics, the long rods will flow radially along the ceramic surfaces without significant penetration. The special...
2020, 40(5): 053302.
doi: 10.11883/bzycj-2019-0323
Abstract:
To found out the damage mechanism, penetration performance, and the effect factors on the penetration performance of the jacketed rod, two kinds of jacketed rods are penetrated into the semi-infinite 4340 steel targets with striking velocities in the...
To found out the damage mechanism, penetration performance, and the effect factors on the penetration performance of the jacketed rod, two kinds of jacketed rods are penetrated into the semi-infinite 4340 steel targets with striking velocities in the...
2020, 40(5): 053303.
doi: 10.11883/bzycj-2019-0354
Abstract:
In order to study the mechanical properties and damage evolution mechanism of weakly-weathered granite under blasting stress wave, single and constant-velocity cyclic impact tests on the granite specimens at different velocities were carried out usin...
In order to study the mechanical properties and damage evolution mechanism of weakly-weathered granite under blasting stress wave, single and constant-velocity cyclic impact tests on the granite specimens at different velocities were carried out usin...
2020, 40(5): 054101.
doi: 10.11883/bzycj-2019-0309
Abstract:
Shock tube was usually used to calibrate the dynamic pressure sensor. During the calibration process of shock tube, the dynamic performance indexes of piezoresistive absolute pressure sensor, such as resonance frequency, depend on both the static pre...
Shock tube was usually used to calibrate the dynamic pressure sensor. During the calibration process of shock tube, the dynamic performance indexes of piezoresistive absolute pressure sensor, such as resonance frequency, depend on both the static pre...
2020, 40(5): 055901.
doi: 10.11883/bzycj-2019-0097
Abstract:
In order to obtain the spatial and temporal distribution law and height variation model of TNT explosion cloud diffusion under different wind Fields, this paper theoretically describes the diffusion process and mechanism of the explosion cloud, and c...
In order to obtain the spatial and temporal distribution law and height variation model of TNT explosion cloud diffusion under different wind Fields, this paper theoretically describes the diffusion process and mechanism of the explosion cloud, and c...
