Effects of hygrothermal aging on glass-fibre reinforced polymer laminates and adhesive of FRP composite bridge: Moisture diffusion characteristics

被引：136

作者：

Jiang, Xu ^{[1
]}

Kolstein, Henk ^{[1
]}

Bijlaard, Frans ^{[1
]}

Qiang, Xuhong ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Civil Engn & Geosci, Dept Struct Engn, Sect Struct & Bldg Engn, NL-2600 AA Delft, Netherlands

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2014年 / 57卷

关键词：

Polymer-matrix composites; Environmental degradation; Analytical modelling; Finite element analysis (FEA); MECHANICAL-PROPERTIES; HYBRID COMPOSITES; TRUSS BRIDGE; WATER; DECK; INFRASTRUCTURE; DURABILITY; ABSORPTION; PARAMETERS; SYSTEM;

D O I：

10.1016/j.compositesa.2013.11.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Moisture absorption and hygrothermal aging in glass-fibre-reinforced polymer laminates and a structural adhesive of FRP composite bridge are studied. By gravimetric experiments, the moisture diffusion in GFRP laminates and adhesive is characterised in four environmental aging conditions (20 degrees C-50% RH (relative humidity), 20 degrees C-water, 40 degrees C-96% RH and 40 degrees C-water). Based on the analytical models from 1D and 3D moisture diffusion theories, the moisture diffusion coefficients are determined by the best least-square curve fitting to experimental data. Finite Element models are further developed, which subsequently validate the analytically obtained moisture diffusion coefficients. The FE analysis indicates that, for identification of 3D moisture diffusion coefficients of anisotropic FRP materials, the equivalent diffusion coefficient method is unreliable, and the 3D moisture diffusion theory is essential. Furthermore, mass loss is found for the Square and Rectangular specimens under 40 C-water condition. Polymer relaxation is observed for structural adhesive. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：49 / 58

页数：10

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