Crushing behaviour of aluminium honeycombs under impact loading

被引：206

作者：

Zhao, H ^{[1
]}

Gary, G ^{[1
]}

机构：

[1] Ecole Polytech, Mecan Solides Lab, F-91128 Palaiseau, France

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 1998年 / 21卷 / 10期

关键词：

honeycombs; Kolsky's bar; rate sensitivity; dynamic testing;

D O I：

10.1016/S0734-743X(98)00034-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：827 / 836

页数：10

共 30 条

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