arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.00842astro-ph.EPcond-mat.mtrl-sci
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材料科学与撞击坑的形成

Material Science and Impact Crater Formation

V. Celebonovic

摘要:

在我们的行星系中,固体物体的表面布满了斑驳的陨石坑。其中一些是由于各种固体射弹撞击物体表面造成的。这些陨石坑的一小部分是火山成因的。其中一些是火山的起源,但其他的是各种射弹撞击有关物体的后果。在地球上,最常提到的两个事件是1908年的“通古斯卡事件”。以及导致亚利桑那州巴林杰陨石坑形成的撞击。撞击坑经常在基于量纲分析的“比例理论”内进行分析。同样的问题可以用材料科学和凝聚态物理的标准定律来处理。本章将对这两种方法进行比较,并在一定程度上指出今后工作的可能性。一些初步的结论,有关的影响到一个颗粒状的目标。

英文摘要:

The surfaces of solid objects in our planetary system are dappled with craters. Some of them are due to impacts of various solid projectiles into the surfaces of the objects. A smaller part of these craters is of volcanic origin. %Some of these are of volcanic origin, but others are consequences of impacts of various projectiles into the objects concerned On the Earth,two most often mentioned such events are the "Tunguska event" of 1908. and the impact which led to the formation of the Barringer crater in Arizona. Impact craters are frequently analyzed within the "scaling theory", which is founded on dimensional analysis. The same problem can be treated by using standard laws of material science and condensed matter physics. In this chapter the two approaches will be compared and possibilities for future work indicated to some extent. Some preliminary conclusions concerning an impact into a granular target will be presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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