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本文应用金相分析方法研究了弹丸冲击下高含碳量薄复合甲板内裂纹产生和扩展的基本规律,分析了薄复合甲板冲击断裂的过程及断口形貌的特征。指出裂纹的产生和不稳定快速扩展是弹丸冲击下这类甲板的基本破坏形式。
In this paper, the basic law of crack initiation and propagation in high carbon content thin composite deck under impact of projectile was studied by using the method of metallographic analysis. The impact fracture process of thin composite deck and the characteristics of the fracture morphology were analyzed. It is pointed out that the generation of cracks and the rapid expansion of instability are the basic forms of destruction of such decks under the impact of projectiles.