Hypervelocity impact performance of aluminum egg-box panel enhanced Whipple shield

Zhang, Xiaotian; Liu, Tao; Liu, Xiaogang; Jia, Guorui

doi:10.1016/j.actaastro.2015.10.013

Cited by 25 publications

(8 citation statements)

References 23 publications

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“…The equations of motion are integrated with time using a Velocity Verlet algorithm 28 and no periodic boundary conditions have been applied. Afterwards, a high velocity is applied to the projectile to impact the graphene, from 2 to 6 km/s (which is in the same order as that of the orbital debris 29 30 31 ). To better describe the heating of graphene induced by the impact, no thermostat is applied during the impact process.…”

Section: Computational Detailsmentioning

confidence: 99%

Failure mechanism of monolayer graphene under hypervelocity impact of spherical projectile

Xia

Zhan

et al. 2016

Sci Rep

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The excellent mechanical properties of graphene have enabled it as appealing candidate in the field of impact protection or protective shield. By considering a monolayer graphene membrane, in this work, we assessed its deformation mechanisms under hypervelocity impact (from 2 to 6 km/s), based on a serial of in silico studies. It is found that the cracks are formed preferentially in the zigzag directions which are consistent with that observed from tensile deformation. Specifically, the boundary condition is found to exert an obvious influence on the stress distribution and transmission during the impact process, which eventually influences the penetration energy and crack growth. For similar sample size, the circular shape graphene possesses the best impact resistance, followed by hexagonal graphene membrane. Moreover, it is found the failure shape of graphene membrane has a strong relationship with the initial kinetic energy of the projectile. The higher kinetic energy, the more number the cracks. This study provides a fundamental understanding of the deformation mechanisms of monolayer graphene under impact, which is crucial in order to facilitate their emerging future applications for impact protection, such as protective shield from orbital debris for spacecraft.

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Section: Computational Detailsmentioning

confidence: 99%

Failure mechanism of monolayer graphene under hypervelocity impact of spherical projectile

Xia

Zhan

et al. 2016

Sci Rep

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“…Thus, the damage to the inner structures can be reduced by using the sandwich panel with low relative density core. The heat shielding performance of the SPTC is similar to hypervelocity fragments shielding performance of Whipple in a space structure [30][31][32]. Although the shielding mechanism and engineering background are quite different, the basic principle is the same: sacrifice the outside structures and protect the inside structures with the minimum weight cost.…”

Section: Conceptual Analysis Of the Laser Resistance Of Sptcmentioning

confidence: 89%

High-power laser resistance of filled sandwich panel with truss core: An experimental study

Yuan

Wang

Song

et al. 2018

Composite Structures

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“…As such, the existing studies had used a typical velocity range of 50-1200 m/s and these have been covered in this study. However, there is a significant amount of work done about the ballistic performance of metallic composites of the hypervelocity range (Deng et al, 2017;Dong et al, 2011;Zhang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Ballistic performance of multi-metal systems

Ranaweera

Weerasinghe

Fernando

et al. 2020

International Journal of Protective Structures

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Ballistic resistance enhancement of armours and structures has been a prominent area of research over the years. Monolithic metallic plates have been the preferred choice for armours against high-velocity projectiles. High-strength steel is a popular choice for such systems. However, the high areal density deters in accommodating such systems in practical applications which require lightweight products. On the contrary, multi-metallic systems produced by the combination of low-density materials with similar or superior ballistic resistance as their monolithic counterparts have become attractive candidates in defence applications. However, only a limited number of comprehensive studies on the ballistic performance of multi-metal multi-layered targets are available in the literature. Moreover, these studies have drawn contradictory conclusions on the optimum arrangement of different layers and materials within the systems. In addition, existing knowledge in this area is scattered in the literature and there is a need to collate them to enhance the development of multi-metal multi-layered ballistic-resistant plate systems in order to be optimised for ballistic-related armour. This article aims to provide a comprehensive review of the effect of different metals, thickness, fracture mechanisms, feasibility of the connection types and the order of the metallic plates within targets on the ballistic performance.

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Hypervelocity impact performance of aluminum egg-box panel enhanced Whipple shield

Cited by 25 publications

References 23 publications

Failure mechanism of monolayer graphene under hypervelocity impact of spherical projectile

Failure mechanism of monolayer graphene under hypervelocity impact of spherical projectile

High-power laser resistance of filled sandwich panel with truss core: An experimental study

Ballistic performance of multi-metal systems

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