Flatwise buckling optimization of hexachiral and tetrachiral honeycombs

被引：127

作者：

Miller, W. ^{[1
]}

Smith, C. W. ^{[1
]}

Scarpa, F. ^{[2
]}

Evans, K. E. ^{[1
]}

机构：

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

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

来源：

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

关键词：

Negative Poisson's ratio chiral honeycomb; Plastic deformation; Mechanical properties; Buckling; Finite element analysis; MECHANICAL-PROPERTIES; POISSON RATIOS; BEHAVIOR; DEFORMATION;

D O I：

10.1016/j.compscitech.2009.10.022

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The flatwise compressive behaviour of tetrachiral and hexachiral honeycombs is analysed, using analytical and Finite Element simulations, both with explicit and implicit formulations. The tetrachiral and hexachiral cells are composed by cylinders connected by four and six tangent ligaments respectively. The ligaments act as mixed stiffeners-elastic foundations during flatwise compressive loading, providing different buckling mode shapes during deformation. The models are compared with experimental results obtained using RP-based honeycombs tested according to ASTM C 393-00 and ASTM C365-00. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1049 / 1056

页数：8

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