Do mechanical and environmental loading have a synergistic effect on the degradation of pultruded glass fiber reinforced polymers?

被引：15

作者：

Pour-Ghaz, Mohammad ^{[1
]}

Miller, Bryant L. H. ^{[1
]}

Alla, Omar Khalaf ^{[1
]}

Rizkalla, Sami ^{[1
]}

机构：

[1] North Carolina State Univ, Dept Civil Construct & Environm Engn, Campus Box 7908, Raleigh, NC 27695 USA

来源：

COMPOSITES PART B-ENGINEERING | 2016年 / 106卷

基金：

美国国家科学基金会;

关键词：

Acoustic emission; Durability; Fiber reinforced polymer; GFRP; Glass transition; ACOUSTIC-EMISSION; DURABILITY PERFORMANCE; ESTER COMPOSITE; FRP COMPOSITES; CONCRETE BEAMS; DAMAGE; BARS; INFRASTRUCTURE; GLASS/EPOXY; POLYESTER;

D O I：

10.1016/j.compositesb.2016.09.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper investigates the effect of simultaneous mechanical and environmental loading on the degradation rate of pultruded Glass Fiber Reinforced Polymer (GFRP) composites. The experimental program included testing a large number of GFRP coupons, with vinylester or polyester matrices, conditioned for 1000 or 2000 h under a wide range of sustained stresses and exposed to freshwater or saltwater at an elevated temperature of 60 degrees C. Mechanical tests, including tensile strength and elastic modulus measurements were performed on the GFRP composites. In addition, glass transition measurements, moisture uptake measurements, scanning electron microscopy, and acoustic emission testing were performed to better understand the synergistic effect of mechanical loading and environmental conditions. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：344 / 355

页数：12

共 43 条

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