CRUSHING BEHAVIOUR OF ALUMINIUM HONEYCOMBS UNDER IMPACT LOADING
CRUSHING BEHAVIOUR OF ALUMINIUM HONEYCOMBS UNDER IMPACT LOADING
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DOI：
10.1016/s0734-743x(98)00034-7
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发表时间：
1998-11
影响因子：
5.1
通讯作者：
Han Zhao;G. Gary
中科院分区：
文献类型：
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作者：
Han Zhao;G. Gary
了解蜂窝在动态载荷下的破碎行为对于车辆的碰撞模拟和碰撞能量吸收器的设计是有用的。然而，现有的实验技术，并不总是能够提供令人满意的精度下的冲击载荷下的蜂窝测试。本文介绍了分离式霍普金森压杆（SHPB）在蜂窝材料测试中的一种新应用。粘弹性棒用于提高测量的准确性，并且应用广义双应变测量方法以获得足够的可测量的最大压碎（高达80%）。原始的实验数据（特别是在面内破碎方向）的冲击载荷下，然后报告。准静态和动态结果之间的差异进行了讨论。
Understanding the crushing behaviour of honeycombs under dynamic loading is useful for crash simulations of vehicles and for design of impacting energy absorbers. Available experimental techniques, however, are not always able to provide satisfactory precision for tests on honeycombs under impact loading. This paper presents a new application of the Split Hopkinson Pressure Bar (SHPB) for testing honeycombs. Viscoelastic bars are used to improve the accuracy of measurements, and a generalised two-strain measurement method is applied to obtain a sufficient measurable maximum crush (up to 80%). Original experimental data (especially in the in-plane crushing directions) under impact loading are then reported. Differences between quasi-static and dynamic results are discussed.