Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams

被引：73

作者：

Shahdin, Amir ^{[1
]}

Mezeix, Laurent ^{[2
]}

Bouvet, Christophe ^{[3
]}

Morlier, Joseph ^{[1
]}

Gourinat, Yves ^{[1
]}

机构：

[1] Univ Toulouse, ISAE, DMSM, F-31055 Toulouse, France

[2] Univ Toulouse, INPT ENSIACET, CIRIMAT, F-31077 Toulouse, France

[3] Univ Toulouse, UPS, LGMT, F-31062 Toulouse, France

来源：

COMPOSITE STRUCTURES | 2009年 / 90卷 / 04期

关键词：

Entangled sandwich materials; Mechanical testing; Vibration testing; Damping; CONSTRAINED-LAYER; DAMPING ANALYSIS; VIBRATION; CORE; EQUATIONS; BEHAVIOR; PANELS;

D O I：

10.1016/j.compstruct.2009.04.003

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The aim of this paper is the fabrication and mechanical testing of entangled sandwich beam specimens and the comparison of their results with standard sandwich specimens with honeycomb and foam as core materials. The entangled sandwich specimens have glass fiber cores and glass woven fabric as skin materials. The tested glass fiber entangled sandwich beams possess low compressive and shear modulus as compared to honeycomb and foam sandwich beams of the same specifications. Although the entangled sandwich beams are heavier than the honeycomb and foam sandwich beams, the vibration tests show that the entangled sandwich beams possess higher damping ratios and low vibratory levels as compared to honeycomb and foam sandwich beams, making them suitable for vibro-acoustic applications where structural strength is of secondary importance, e.g., internal paneling of a helicopter. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：404 / 412

页数：9

共 57 条

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