Investigation of the multiple-fragmentation process and post-fragmentation behaviour of dense and nacre-like alumina ceramics by means of tandem impact experiments and tomographic analysis

Duplan, Yannick; Forquin, Pascal

doi:10.1016/j.ijimpeng.2021.103891

Cited by 10 publications

(2 citation statements)

References 37 publications

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“…他们利用30组典型的弹丸破碎数据, 对7种分布模型进行了验证, 根据不同的材料可选用不同的分布规律拟合. 除考虑碎片尺寸的概率和统计分布规律, 也需要考虑形状参数和尺度参数 [44,45] 对脆性材料在动态冲击下碎裂的影响.…”

Section: 材料中裂纹的最终特征和分布决定了形成碎片的形状、大小和质量而解决其分布问题主要依赖以下unclassified

Recent progress in impact-induced reaction mechanisms of reactive alloys

He,

Yang,

et al. 2023

Chin. Sci. Bull.

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Destruction by munitions mainly relies on their warheads, and research on improving the destructive effectiveness of warheads has focused on new explosives, improving the warhead structures, and adopting new types of destructive elements. The limitations of the single kinetic damage mechanism and damage mode of the inert damage element largely restrict the enhancement of destructive effectiveness of conventional warheads. Therefore, a new type of reactive material has been developed, namely, reactive alloys, which include metal composite materials, amorphous alloys, and high-entropy alloys. The common characteristic of these alloys is that they contain reactive metal elements (Al, Mg, Ti, Zr, etc.), which easily undergo oxidation under high-temperature conditions. Compared with the traditional metal-polymer and other reactive composites, these alloys have higher density and strength, excellent mechanical properties, and broader application prospects. The exothermic reaction properties of reactive alloys under high-velocity impact conditions facilitate strong ignition and detonation effects and considerably improve their destructive effectiveness. Current researchers have mainly investigated the impact-induced reaction mechanisms of reactive alloys by conducting various impact tests. They found that the mechanism involves several stages: From material crushing to materials undergoing reaction, i.e., the material is first crushed by the impact compression and dispersed into many fine particles, and the temperature of the material increases rapidly in the meantime, and finally, an intense oxidation reaction occurs in the material after being heated. This paper focuses on three aspects that need to be addressed during the impact-induced reaction mechanisms of reactive alloys: (1) The fragmentation mechanism and size distribution trend of the generated fragments after a material impacts the target, (2) the relation between the transient temperature and fragment size due to the impact and adiabatic shear, and (3) reaction temperatures and size thresholds for the fragments to undergo the chemical reactions. Recent research progress on these three problems was summarized to reveal the reaction mechanism of reactive alloys. Because reactive alloys have excellent mechanical properties, they can be used in various future armor-piercing munitions, shaped charges, and fragmentation materials. They can also be directly made into reactive material shells. Conducting subsequent work will be conducive to promoting the application of reactive alloys. In the future, reactive alloys can be applied to fabricate more destructive elements to realize the integration of structure and function, which will substantially improve the reliability of the warheads, simplify the design space, realize high efficiency of the munition's destructive effectiveness, and remarkably improve the integration of structure and function of warheads.

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Section: 材料中裂纹的最终特征和分布决定了形成碎片的形状、大小和质量而解决其分布问题主要依赖以下unclassified

Recent progress in impact-induced reaction mechanisms of reactive alloys

He,

Yang,

et al. 2023

Chin. Sci. Bull.

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“…To date, there is no mention in the literature of musical instruments made of bio-inspired ceramics. Also, bio-inspired ceramics are still under development for applications in health and medicine as implants (Dee et al, 2020), in aerospace as turbine blades (Chan J and Le Ferrand, 2022), in defence as protective shields (Duplan and Forquin, 2021), among others. Discussing their use for musical applications could add to this list of potential application.…”

Section: Introductionmentioning

confidence: 99%

Could Bio-Inspired Nacre-Like Ceramics be Suitable to Fabricate Musical Instruments?

Ferrand

2022

Music & Science

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In the past, natural ceramic biomaterials like bones and seashells were used to make music. Today, ceramics are largely absent from the musical scene. Yet, recent development of bio-inspired ceramics could be used to create musical instruments that emulate sound from ancient times, that do not make use of endangered animal species or that enable exploration of new types of music. In this paper, the question of whether bio-inspired ceramics would be suitable for usage in musical instrument is posed. The study focusses on nacre-like alumina ceramics of various compositions and their suitability to be used, fabricated, and to produce sound are discussed based on materials’ properties. It is found that flat pieces could be produced with high throughput for making idiophones or parts of musical instruments to increase the sound radiance, for example, and that complex shapes could be produced by a craftsperson to reproduce other musical instruments’ designs or create new ones using 3D printing technologies. The potential application of such ceramics for music could also open ideas in architecture where tiles are used, for example. Future work to enable these applications should be on more thorough characterisation of dynamic properties according to standards, scaled-up and reliable fabrication processes, and evaluation of the sound produced.

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Damage in Armor Ceramics Subjected to High-Strain-Rate Dynamic Loadings: The Edge-On Impact Test

Forquin

Cosculluela

2022

Handbook of Damage Mechanics

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Investigation of the multiple-fragmentation process and post-fragmentation behaviour of dense and nacre-like alumina ceramics by means of tandem impact experiments and tomographic analysis

Cited by 10 publications

References 37 publications

Recent progress in impact-induced reaction mechanisms of reactive alloys

Recent progress in impact-induced reaction mechanisms of reactive alloys

Could Bio-Inspired Nacre-Like Ceramics be Suitable to Fabricate Musical Instruments?

Damage in Armor Ceramics Subjected to High-Strain-Rate Dynamic Loadings: The Edge-On Impact Test

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