2006 Vol. 26, No. 5
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2006, 26(5): 404-409.
doi: 10.11883/1001-1455(2006)05-0404-06
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Abstract:
Effect of after-burning on the blast power of SEFAE was studied by analyzing blast process of SEFAE warhead recorded by a high-speed video camera. By means of data obtained from SEFAE warhead field test and their TNT equivalency calculation, energy r...
Effect of after-burning on the blast power of SEFAE was studied by analyzing blast process of SEFAE warhead recorded by a high-speed video camera. By means of data obtained from SEFAE warhead field test and their TNT equivalency calculation, energy r...
2006, 26(5): 410-415.
doi: 10.11883/1001-1455(2006)05-0410-06
Abstract:
The dynamic properties of special metallic cellular materials are tested difficultly by using the traditional SHPB techniques. In order to experimentally determine the initial dynamic collapse strength, plateau stress and to investigate the strain-ra...
The dynamic properties of special metallic cellular materials are tested difficultly by using the traditional SHPB techniques. In order to experimentally determine the initial dynamic collapse strength, plateau stress and to investigate the strain-ra...
2006, 26(5): 416-422.
doi: 10.11883/1001-1455(2006)05-0416-07
Abstract:
An experimental investigation was carried out to study the static-compressive behavior and energy-absorption performance of a closed cellular Al-Cu alloy. The fitting curves of relative elastic modulus-relative density and relative plateau stress-rel...
An experimental investigation was carried out to study the static-compressive behavior and energy-absorption performance of a closed cellular Al-Cu alloy. The fitting curves of relative elastic modulus-relative density and relative plateau stress-rel...
2006, 26(5): 423-428.
doi: 10.11883/1001-1455(2006)05-0423-06
Abstract:
High-speed camera and optical microscope were used to study the fracture characteristics of the 45 steel cylinder and the effect of the heat treatment conditions on them. Results show that while the temper temperature rises, the intensity decreases a...
High-speed camera and optical microscope were used to study the fracture characteristics of the 45 steel cylinder and the effect of the heat treatment conditions on them. Results show that while the temper temperature rises, the intensity decreases a...
2006, 26(5): 429-433.
doi: 10.11883/1001-1455(2006)05-0429-05
Abstract:
The influencing factors of diamond's yield rate, such as, catalyzer, charge structure and initiation manners, were experimentally researched respectively. Experimental results show that diamond's yield rate increase greatly with MnCl2, Ni(CHOO)2, and...
The influencing factors of diamond's yield rate, such as, catalyzer, charge structure and initiation manners, were experimentally researched respectively. Experimental results show that diamond's yield rate increase greatly with MnCl2, Ni(CHOO)2, and...
2006, 26(5): 434-440.
doi: 10.11883/1001-1455(2006)05-0434-07
Abstract:
Based on the fundamental theories of numerical manifold method (NMM), a criterion of crack initiation and crack growth is introduced into NMM. NMM is used to numerically study the process of two-hole blasting, in which two different initiation condit...
Based on the fundamental theories of numerical manifold method (NMM), a criterion of crack initiation and crack growth is introduced into NMM. NMM is used to numerically study the process of two-hole blasting, in which two different initiation condit...
2006, 26(5): 441-447.
doi: 10.11883/1001-1455(2006)05-0441-07
Abstract:
A pressure desensitization degree parameter was proposed to characterize desensitization of emulsion explosive and offer a quantificationally analyzing tool for studying its action mechanism. Pressure desensitization degrees were calculated with para...
A pressure desensitization degree parameter was proposed to characterize desensitization of emulsion explosive and offer a quantificationally analyzing tool for studying its action mechanism. Pressure desensitization degrees were calculated with para...
2006, 26(5): 448-451.
doi: 10.11883/1001-1455(2006)05-0448-04
Abstract:
A velocity interferometer system for any reflector was used to measure the free surface velocity of steel flyer. The steel flyer was driven by an explosive charge(50 mm50 mm) with two different structure. In one case ,the charge is restricted with a...
A velocity interferometer system for any reflector was used to measure the free surface velocity of steel flyer. The steel flyer was driven by an explosive charge(50 mm50 mm) with two different structure. In one case ,the charge is restricted with a...
2006, 26(5): 452-455.
doi: 10.11883/1001-1455(2006)05-0452-04
Abstract:
Based on ANSYS 7.0/LS-DYNA, an analysis is performed of the stress response of a simply-supported plate (3 m3 m), with a hole (0.3 m0.3 m), subjected to positive and negative triangularly-distributed pressures. The dynamic stress concentration factor...
Based on ANSYS 7.0/LS-DYNA, an analysis is performed of the stress response of a simply-supported plate (3 m3 m), with a hole (0.3 m0.3 m), subjected to positive and negative triangularly-distributed pressures. The dynamic stress concentration factor...
2006, 26(5): 462-467.
doi: 10.11883/1001-1455(2006)05-0462-06
Abstract:
Propagation of the blast wave in cement sample in the water was simulated. The damage causes of different areas in cement sample were explored by using the method analysizing the blast wave and stress acting on typical cement sample element. Numerica...
Propagation of the blast wave in cement sample in the water was simulated. The damage causes of different areas in cement sample were explored by using the method analysizing the blast wave and stress acting on typical cement sample element. Numerica...
2006, 26(5): 468-473.
doi: 10.11883/1001-1455(2006)05-0468-06
Abstract:
According to the structural characteristic of the weapon with side chamber, an equivalent model is proposed. Based on the model, two one-dimensional interior ballistic models are developed. Then, second-order TVD algorithm is employed for the computa...
According to the structural characteristic of the weapon with side chamber, an equivalent model is proposed. Based on the model, two one-dimensional interior ballistic models are developed. Then, second-order TVD algorithm is employed for the computa...
2006, 26(5): 474-480.
doi: 10.11883/1001-1455(2006)05-0474-07
Abstract:
Based on the explicit FEM code LS-DYNA3D and the viscous-spring boundary, the 3D elastic-viscous-plastic dynamic response model composed of explosion cavity, an underground structure, a shock isolation material and geologic backfills were established...
Based on the explicit FEM code LS-DYNA3D and the viscous-spring boundary, the 3D elastic-viscous-plastic dynamic response model composed of explosion cavity, an underground structure, a shock isolation material and geologic backfills were established...
