Collisional disruption experiments of porous targets
Collisional disruption experiments of porous targets
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DOI：
10.1016/j.pss.2008.07.027
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发表时间：
2009-02-01
影响因子：
2.4
通讯作者：
Machii, Nagisa
中科院分区：
文献类型：
--
作者：
Nakamura, Akiko M.;Hiraoka, Kensuke;Machii, Nagisa
越来越多的小天体被发现是多孔的。开展了各种多孔材料的实验室冲击实验，增加了我们对多孔体冲击过程的认识。在这篇综述中，我们根据内部结构对多孔靶进行分类，描述了表征这些材料的物理性能，并总结了冲击强度的一些结果以及冲击条件和材料性能的总体趋势。这里介绍的材料特性包括所施加的载荷和膨胀之间的关系，尽管是在静态条件下测量的。需要进一步研究来阐明裂纹扩展和压实在多孔材料受到冲击时物理性能随时间演变的作用。具有详细材料特性的实验室实验将作为一个有用的数据库，可以作为数值建模和理论缩放考虑的参考。 (C) 2008 Elsevier Ltd. 保留所有权利。
More and more small bodies are found to be porous. Laboratory impact experiments of various porous materials have been performed, which increased our understanding of the impact process of porous bodies. In this review, we classify porous targets according to the internal structure, describe the physical properties that characterize these materials, and summarize some results of impact strength and the general tendency upon impact condition and material properties. The material property presented here includes a relation between applied load and distension although measured in static condition. Further investigation is required to clarify the role of crack growth and compaction in the time evolution of physical properties of porous materials upon impact. Laboratory experiments with detailed material properties will be useful as a database that can serve as a reference for numerical modeling and theoretical scaling considerations. (C) 2008 Elsevier Ltd. All rights reserved.