Journal
COMPOSITES PART B-ENGINEERING
Volume 106, Issue -, Pages 344-355Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.09.007
Keywords
Acoustic emission; Durability; Fiber reinforced polymer; GFRP; Glass transition
Funding
- National Science Foundation [1230284]
- Div Of Industrial Innovation & Partnersh
- Directorate For Engineering [1230284] Funding Source: National Science Foundation
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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.
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