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玻璃中失效波传播的实验研究

DOI: 10.11858/gywlxb.2010.05.003, PP. 333-337

Keywords: 失效波轨迹,延迟,激光速度干涉仪,浮法玻璃

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Abstract:

通过轻气炮加载平面撞击实验,采用激光速度干涉仪(VISAR)测量了相同冲击载荷作用下不同厚度Soda-Lime玻璃试件背面的粒子速度,得到了Soda-Lime玻璃中失效波的传播轨迹和传播速度。结果表明:碰撞面上产生的失效波存在一定的初始时间延迟,且延迟时间随载荷增加而减小。研究结果对于深入认识失效波的产生机理及其在各类脆性材料中的传播规律具有重要作用。

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