Mechanics of Plate Fracture from Detonation Wave Interaction

Zhang, Ke Fan; Liang, Minzu; Lu, Fangyun; Li, Xiangyu

doi:10.1002/prep.201800150

Cited by 6 publications

(7 citation statements)

References 8 publications

(8 reference statements)

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“…The equations are widely used for metallic materials as numerous efforts have been exerted to determine these parameters. The material properties and parameters used for aluminum and steel [23] are summarized in Table 5. Figure 6b, a hemispherical shock wave is formed when the projectile impacts liquid hydrazine, which is consistent with Figure 6a.…”

Section: Appl Sci 2019 9 X For Peer Review 10 Of 16mentioning

confidence: 99%

“…The equations are widely used for metallic materials as numerous efforts have been exerted to determine these parameters. The material properties and parameters used for aluminum and steel [23] are summarized in Table 5. Figure 6a presents the shock wave pressure and duration in liquid hydrazine calculated by Zeus, and Figure 6b shows the pressure nephogram of the shock wave obtained by ANSYS/LS-DYNA software at 0.10 μs, 0.25 μs, 0.32 μs, 0.50 μs, 0.70 μs, and 0.88 μs s. t = 0 indicates the moment when the projectile contacts with liquid hydrazine, and t = 0.88 μs indicates the moment when the projectile completely enters liquid hydrazine.…”

Section: Appl Sci 2019 9 X For Peer Review 10 Of 16mentioning

confidence: 99%

See 1 more Smart Citation

Shock Initiation of a Satellite Tank under Debris Hypervelocity Impact

Zhao

Cui

et al. 2019

Applied Sciences

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For the risk assessment of a satellite to determine whether the satellite tank explodes under the hypervelocity impact, the Walker–Wasley criterion is selected to predict the shock initiation of the satellite tank. Then, the minimum power density of liquid hydrazine is determined based on the tests, the expressions of shock wave pressure and pressure duration are constructed based on the one-dimensional wave theory, and the initiation criterion for the liquid hydrazine tank is established. Finally, numerical simulation and the initiation criterion are adopted to calculate the power density in the satellite tank under the debris impact at the velocity of 10 km/s. The calculated power density agrees well with the simulated power density, they are both larger than the minimum power density, demonstrating that the shock wave generated by the hypervelocity impact is sufficient to trigger an explosion in the satellite tank.

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“…The equations are widely used for metallic materials as numerous efforts have been exerted to determine these parameters. The material properties and parameters used for aluminum and steel [23] are summarized in Table 5. Figure 6b, a hemispherical shock wave is formed when the projectile impacts liquid hydrazine, which is consistent with Figure 6a.…”

Section: Appl Sci 2019 9 X For Peer Review 10 Of 16mentioning

confidence: 99%

“…The equations are widely used for metallic materials as numerous efforts have been exerted to determine these parameters. The material properties and parameters used for aluminum and steel [23] are summarized in Table 5. Figure 6a presents the shock wave pressure and duration in liquid hydrazine calculated by Zeus, and Figure 6b shows the pressure nephogram of the shock wave obtained by ANSYS/LS-DYNA software at 0.10 μs, 0.25 μs, 0.32 μs, 0.50 μs, 0.70 μs, and 0.88 μs s. t = 0 indicates the moment when the projectile contacts with liquid hydrazine, and t = 0.88 μs indicates the moment when the projectile completely enters liquid hydrazine.…”

Section: Appl Sci 2019 9 X For Peer Review 10 Of 16mentioning

confidence: 99%

Shock Initiation of a Satellite Tank under Debris Hypervelocity Impact

Zhao

Cui

et al. 2019

Applied Sciences

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“…These equations are widely used for metallic materials because numerous efforts have been exerted to determine the parameters. The material properties and parameters used for aluminum [14] and steel [19] are summarized in Table 2. The air was modeled using the constitutive equation of MAT_NULL and the state equation of EOS_LINEAR_POLYNOMIAL [14].…”

Section: Validation Of Simulation Modelmentioning

confidence: 99%

“…Figure19. Attenuation curves of the translation velocity when the debris impacted the satellite tank with angular velocities of wy = 1 rad/μs, wy = 2 rad/μs, wy = 3 rad/μs, wy = 4 rad/μs, and wy = 5 rad/μs.…”

mentioning

confidence: 99%

Hydrodynamic Ram Effect Caused by Debris Hypervelocity Impact on Satellite Tank

Zhao

Cui

et al. 2019

Applied Sciences

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To study the hydrodynamic ram effect caused by the debris hypervelocity impact on the satellite tank, a numerical simulation of the spherical debris impacting the satellite tank at the velocity of 7000 m/s was carried out based on ANSYS/LS-DYNA software. The attenuation law of debris velocity, the propagation process of the shock wave and the deformation of the tank walls were investigated. The influences of the liquid-filling ratio, the magnitude, and direction of angular velocity on the hydrodynamic ram effect were analyzed. Results show that the debris velocity decreased rapidly and the residual velocity was 263 m/s when the debris passed through the tank. The shock wave was hemispherical, and the pressure of shock wave was the smallest at the element with an angle of 90° to the impact line. The maximum diameter of the front perforation was larger than that of the back perforation and the bulge height on the front wall was smaller than that on the back wall. With the decrease of the liquid-filling ratio, the diameter of the perforations and bulge height decreased. When the debris impacted the satellite tank with the angular velocity in the x direction, the debris trajectory did not deflect. When the debris impacted the satellite tank with the angular velocities in the y and z direction, the debris trajectory deflected to the negative direction of the z axis and y axis, respectively. The magnitude of the angular velocity affects the residual velocity of debris and the diameter of perforations.

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“…Liu et al [26] analyzed the collision process of detonation waves in a double-layer-shaped charge, and a mathematical model for the propagation and interaction of detonation waves was established. Li et al [25] examined the effects of pressure and the region of the Mach wave zone on the annular multi-point initiation. They concluded that the range of Mach reflection decreased and the pressure of the Mach wave increased as the initiation diameter increased.…”

Section: Introductionmentioning

confidence: 99%

Dynamic fracture of metal rods under overdriven effect of cylindrical detonation collision

Li,

Liang,

Tian

2023

Propellants Explo Pyrotec

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The collision of detonation waves is widely used in weapon design due to its ability to efficiently achieve an ultra‐high pressure region. This work discusses the dynamic fracture of metal rods under the collision of cylindrical detonations. In the experiments, the detonation wave collision is generated by detonating an explosive charge at its end position along two parallel initiation lines, which are detonated by a plane wave generator. The recovered metal rods were broken around their centers due to the superposition of detonation waves. A blue oxidation zone appeared at the fracture surfaces of steel rods in the contact zone under the charge, indicating the local existence of high temperatures. A finite element model was used to simulate and describe the dynamic fracture of metal rods caused by detonation wave collision. The three‐shock theory was used to examine the detonation wave collision. When the incidence angle was between 0° and 40°, the reflected shock wave pressure was approximately 2.1 times the CJ pressure. At an incidence angle of 44.84°, the ratio of Mach and CJ pressure reached a maximum of 3.1. The concentration degree of detonation pressure was developed to evaluate the superposition influence on the dynamic fracture of metal rods. The microstructure of fracture surfaces revealed that metal rods preferred shear fracture under high pressure concentration. With a low degree of pressure concentration, a brittle fracture may emerge. This research serves as a guide for designing and evaluating multimode warheads.

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Mechanics of Plate Fracture from Detonation Wave Interaction

Cited by 6 publications

References 8 publications

Shock Initiation of a Satellite Tank under Debris Hypervelocity Impact

Shock Initiation of a Satellite Tank under Debris Hypervelocity Impact

Hydrodynamic Ram Effect Caused by Debris Hypervelocity Impact on Satellite Tank

Dynamic fracture of metal rods under overdriven effect of cylindrical detonation collision

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