Geometry effect on the behaviour of single and glue-laminated glass fibre reinforced polymer composite sandwich beams loaded in four-point bending

被引：34

作者：

Awad, Ziad K. ^{[1
]}

Aravinthan, Thiru ^{[1
]}

Manalo, Allan ^{[1
]}

机构：

[1] Univ So Queensland, Ctr Excellence Engn Fibre Composites, Fac Engn & Surveying, Toowoomba, Qld 4350, Australia

来源：

MATERIALS & DESIGN | 2012年 / 39卷

关键词：

Sandwich structures; Mechanical; Failure analysis; FOAM CORE; PLASTIC COLLAPSE; FAILURE MODES; OPTIMIZATION; PANELS; DESIGN; WOOD;

D O I：

10.1016/j.matdes.2012.02.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The research investigated the behaviour of single and glue laminated glass fibre reinforced polymer (GFRP) composite sandwich beams considering different spans and beam cross sections. The composite sandwich beams with different thicknesses (1, 2, 3, 4, and 5 sandwich layers) have been tested in four-point static flexural test with different shear span to depth ratio (a/d). The a/d ratios showed a direct effect on the flexural and shear behaviour. The capacity of the beam decreased with increasing a/d. Various failure modes were observed including core crushing, core shear, and top skin compression failure. The failure mode map developed based on the experimental finding and analytical prediction indicated that the failure mode is affected by the a/d with the number of glue laminated panels. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：93 / 103

页数：11

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