Hypervelocity penetration of gold rods into SiC-N for impact velocities from 2.0 to 6.2 km/s

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• 作者：T. Behner ; D.L. Orphal ; V. Hohler ; Jr. ; C.E. Anderson ; R.L. Mason ; D.W. Templeton
• 关键词：Hypervelocity impact ; Long-rod penetration ; Failure waves ; Failure kinetics ; Silicon carbide
• 刊名：International Journal of Impact Engineering
• 出版年：2006
• 出版时间：December 2006
• 年：2006
• 卷：33
• 期：1-12
• 页码：68-79
• 全文大小：487 K

文摘

This paper presents the experimental design and results of an advanced set of reverse ballistic experiments with long gold rods, impacting SiC-N ceramics at impact velocities from 2.0 to 6.2 km/s. Important issues for these experiments were the high accuracy and position requirements necessary to detect a possible failure wave or failure kinetics in SiC-ceramics as might be evidenced by a change in the slope of the penetration velocity–impact velocity curve. New and sophisticated evaluation methods were developed for this purpose and produced very reliable results. Analyses of the experimental results show clearly that there is no change in the slope of the penetration velocity–impact velocity curve, contrary to that inferred from previous data and analysis.