2020 Vol. 40, No. 7
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2020, 40(7): 071401.
doi: 10.11883/bzycj-2019-0403
Abstract:
Based on the generation method of layered density graded foam, new radial density graded foam models were designed by 3D-Voronoi technique, and their mechanical behavior under different impact loads was numerically simulated by finite element softwar...
Based on the generation method of layered density graded foam, new radial density graded foam models were designed by 3D-Voronoi technique, and their mechanical behavior under different impact loads was numerically simulated by finite element softwar...
2020, 40(7): 071402.
doi: 10.11883/bzycj-2019-0418
Abstract:
Dynamic response of sandwich tubes subjected to blast loading is investigated numerically. The 3D-Voronoi technology is introduced to establish three-dimensional mesoscopic finite element model of aluminum foam. The influences of the thickness of inn...
Dynamic response of sandwich tubes subjected to blast loading is investigated numerically. The 3D-Voronoi technology is introduced to establish three-dimensional mesoscopic finite element model of aluminum foam. The influences of the thickness of inn...
Impact resistance of thickness-graded arrow-shaped honeycomb pedestals with negative Poisson’s ratio
2020, 40(7): 071403.
doi: 10.11883/bzycj-2019-0414
Abstract:
An arrow-shaped honeycomb pedestal with negative Poisson’s ratio was designed. An analytical formula was derived for the mechanical properties of the cell structures, and the impact resistance of the thickness-graded arrow-shaped honeycomb materials ...
An arrow-shaped honeycomb pedestal with negative Poisson’s ratio was designed. An analytical formula was derived for the mechanical properties of the cell structures, and the impact resistance of the thickness-graded arrow-shaped honeycomb materials ...
2020, 40(7): 071404.
doi: 10.11883/bzycj-2019-0423
Abstract:
With the characteristics of light weight and high specific energy absorption, multi-cell thin-wall structures have been widely used in automobile, ship, aerospace and other fields. Previous studies have shown that the crashworthiness of a structure i...
With the characteristics of light weight and high specific energy absorption, multi-cell thin-wall structures have been widely used in automobile, ship, aerospace and other fields. Previous studies have shown that the crashworthiness of a structure i...
2020, 40(7): 071405.
doi: 10.11883/bzycj-2019-0355
Abstract:
By chosing PolyMaxTM PLA as the sample material, thin-walled tube structures with arc-shaped origami patterns were prepared by a three-dimensional printing technology. Based on quasi-static axial compression experiments, their axial quasi-static crus...
By chosing PolyMaxTM PLA as the sample material, thin-walled tube structures with arc-shaped origami patterns were prepared by a three-dimensional printing technology. Based on quasi-static axial compression experiments, their axial quasi-static crus...
2020, 40(7): 071406.
doi: 10.11883/bzycj-2019-0339
Abstract:
In order to improve the anti-explosion ability of steel cylinders subjected to internal blast loading, the effect of aluminum foam lining on the deformation of the steel cylinders was explored. First of all, contrast experiments displayed that under ...
In order to improve the anti-explosion ability of steel cylinders subjected to internal blast loading, the effect of aluminum foam lining on the deformation of the steel cylinders was explored. First of all, contrast experiments displayed that under ...
2020, 40(7): 073101.
doi: 10.11883/bzycj-2019-0377
Abstract:
Zr-based bulk metallic glass is a type of glass alloy with many excellent properties, such as high strength and high hardness. With the increasing application of Zr-based bulk metallic glass alloys in military field, it is urgent to construct the mec...
Zr-based bulk metallic glass is a type of glass alloy with many excellent properties, such as high strength and high hardness. With the increasing application of Zr-based bulk metallic glass alloys in military field, it is urgent to construct the mec...
2020, 40(7): 073102.
doi: 10.11883/bzycj-2019-0430
Abstract:
The deformation behavior of 8 mm and 12 mm WELDOX 700E steel, at stand-off distance 250 mm, subjected to air-blast loading by 6 kg and 10 kg spherical TNT, was investigated. The simulation model of WELDOX 700E steel subjected to air-blast loading is ...
The deformation behavior of 8 mm and 12 mm WELDOX 700E steel, at stand-off distance 250 mm, subjected to air-blast loading by 6 kg and 10 kg spherical TNT, was investigated. The simulation model of WELDOX 700E steel subjected to air-blast loading is ...
2020, 40(7): 073201.
doi: 10.11883/bzycj-2019-0401
Abstract:
To explore the interaction between dynamic and static cracks in brittle materials under impact load, polymethyl methacrylate (PMMA) was chosen as the experiment material, considering that the PMMA has good optical properties and its fracture behavior...
To explore the interaction between dynamic and static cracks in brittle materials under impact load, polymethyl methacrylate (PMMA) was chosen as the experiment material, considering that the PMMA has good optical properties and its fracture behavior...
2020, 40(7): 074201.
doi: 10.11883/bzycj-2019-0241
Abstract:
The Whipple shield is often used for protecting spacecraftfrom the impact of space debris. There are a lot of defects in the general numerical simulation methods for hypervelocity impact problems, thus this paper used OTM (optimal transportation mesh...
The Whipple shield is often used for protecting spacecraftfrom the impact of space debris. There are a lot of defects in the general numerical simulation methods for hypervelocity impact problems, thus this paper used OTM (optimal transportation mesh...
2020, 40(7): 075201.
doi: 10.11883/bzycj-2019-0255
Abstract:
In order to solve the safety problem in the construction of slope and underpass adjacent tunnel by cooperative blasting, based on the expansion project of a domestic petroleum reserve base, the formula of peak vibration velocity considering elevation...
In order to solve the safety problem in the construction of slope and underpass adjacent tunnel by cooperative blasting, based on the expansion project of a domestic petroleum reserve base, the formula of peak vibration velocity considering elevation...
2020, 40(7): 075202.
doi: 10.11883/bzycj-2019-0427
Abstract:
During blasting in deep rock masses, the rock fragmentation is contributed to the combined effects of blast loading and high in-situ stress. An analysis model based on simplifying assumptions was developed for double-hole blasting in highly-stressed ...
During blasting in deep rock masses, the rock fragmentation is contributed to the combined effects of blast loading and high in-situ stress. An analysis model based on simplifying assumptions was developed for double-hole blasting in highly-stressed ...
