The ejecta model for hypervelocity impact on 5A06 aluminum sheet

Wei Zheng; Baojun Pang

doi:10.1117/12.851269

14 April 2010 The ejecta model for hypervelocity impact on 5A06 aluminum sheet

Wei Zheng, Baojun Pang

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75222H (2010) https://doi.org/10.1117/12.851269
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

Ejecta is the new debris produced by micrometeoroid or small space debris impacting on spacecraft surface. It is one of the main increasing sources in the number of space debris. Researching of space debris hypervelocity impacting on the typical material of spacecraft surface could gain the distribution of ejecta and provide a input source for the space debris environment model. In this paper, 2017 aluminum sphere projectiles of 2.4mm and 3.2mm diameter are accelerated to about 2km/s and 3km/s using a two-stage light-gas gun. The data of speed, quality, size for ejecta is analysised by the probability theory of mathematical statistics, then get the speed, quality, size distribution of the ejecta and set up the ejecta model. The average size and velocity of the ejecta increase with increasing of the diameter and velocity of the projectile. The zenith angle of the ejecta is almost between 39° and 47°.

Citation Download Citation

Wei Zheng and Baojun Pang "The ejecta model for hypervelocity impact on 5A06 aluminum sheet", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75222H (14 April 2010); https://doi.org/10.1117/12.851269

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