Smart tetrachiral and hexachiral honeycomb: Sensing and impact detection

被引：100

作者：

Abramovitch, H. ^{[2
]}

Burgard, M. ^{[3
]}

Edery-Azulay, Lucy ^{[2
]}

Evans, K. E. ^{[4
]}

Hoffmeister, M. ^{[3
]}

Miller, W. ^{[4
]}

Scarpa, F. ^{[1
]}

Smith, C. W. ^{[4
]}

Tee, K. F. ^{[1
]}

机构：

[1] Univ Bristol, Dept Aerosp Engn, Bristol BS8 1TR, Avon, England

[2] Technion Israel Inst Technol, Dept Aerosp Engn, Haifa, Israel

[3] Fraunhofer IPA, D-70569 Stuttgart, Germany

[4] Univ Exeter, Sch Engn Comp & Math, Exeter EX4 4QE, Devon, England

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 07期

关键词：

Smart materials; Vibration; Sandwich structures; Non-destructive testing; Injection moulding; DAMAGE DETECTION; BEHAVIOR;

D O I：

10.1016/j.compscitech.2009.07.017

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In this work we present concepts and prototypes of a novel class of chiral honeycomb core with embedded sensing characteristics for potential structural health monitoring (SHM) and other multifunctional applications. The cellular structure concepts, all having negative Poisson's ratio behaviour, have piezoelectric sensors and their hardware support embedded on the surface, or within the unit cell plates. Both the sensors and the infrastructure provide not only the capability of detecting signals proportional to the external mechanical loading, but act also as load-bearing units. The honeycombs have been produced using vacuum-casting techniques and resin transfer moulding methods, with micro fibre composites (MFCs) embedded in their cell walls. The sensing and mechanical performance of the prototypes are evaluated using finite element simulations, static tests, broadband vibration excitation and impact at low kinetic energy levels using an airgun. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1072 / 1079

页数：8

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