Contrasting Effects of Natural Aging on the Quasi-Static Properties and Fatigue Life of Pultruded GFRP Composites
Yandong Shi, Wenkai Li, Linjun Zhang, Peining Li · 2026
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Description
Yandong Shi and co-authors left glass-fiber composite panels outdoors for two years in three Chinese cities to see what real weather does to them. The material, pultruded glass fiber in epoxy, is used in structures expected to last decades. Panels aged in Guangzhou, Hangzhou, and Suihua were tested for stiffness and strength along the way, and for fatigue life, resistance to repeated loading, at the end.
Stiffness and strength wobbled without a steady downward trend. Fatigue life under repeated tension fell in every exposed group, most sharply in humid Guangzhou, while repeated compression gave murkier results. Microscopy showed surface resin loss and fibers separating from the matrix. The authors propose fatigue testing as the more sensitive health check for such composites.
Catalog record
| CREATOR | Yandong Shi, Wenkai Li, Linjun Zhang, Peining Li |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 45 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |