Fiber‑reinforced polymer is a class of two‑phase composite material consisting of discrete reinforcing fibrous phases embedded within a continuous polymer matrix phase [1][2]. The fibrous phase primarily bears applied mechanical loads, while the surrounding polymer matrix transfers stress among individual fibers, constrains fiber position, and provides environmental protection for the reinforcing constituents [2][3]. Its constituent fibrous phase may comprise glass, carbon, aramid, or alternative inorganic and organic fibers, whereas the polymer matrix can be either thermosetting or thermoplastic polymer substances [1][4]. Fiber‑reinforced polymer is defined by its heterogeneous multi‑phase microstructure, in which fibers and polymer matrix retain their distinct original chemical identities without forming homogeneous solid‑solution products during material formation [3][5].
- polymer matrix composite
- glass‑fiber‑reinforced polymer
- carbon‑fiber‑reinforced polymer
- fiber reinforcement
- thermoset composite
Fiber-reinforced polymer composites • Mechanical Engineering • Engineering • Physical Sciences
References
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- Fibre-reinforced polymer (FRP) reinforcement of concrete. Fibre-reinforced polymer (FRP) reinforcement of concrete — Test methods — Part 4: FRP grids. Retrieved 2026-9-11
- Sharifianjazi, F.; Zeydi, P.; Bazli, M.; Esmaeilkhanian, A.; Rahmani, R.; Bazli, L.; Khaksar, S.; Fibre-Reinforced Polymer Reinforced Concrete Members under Elevated Temperatures: A Review on Structural Performance. Polymers 2022, 14, 472, https://www.mdpi.com/2073-4360/14/3/472.
- Díaz-Rodríguez, J.G.; Pertuz-Comas, A.D.; Bohorquez-Becerra, O.R.; Fatigue Endurance of Continuous Fiber-Reinforced Polymer Matrix Composites Manufactured by 3D Printing. Eng 2025, 6, 277, https://doi.org/10.3390/eng6100277.
- Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials. Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials. Retrieved 2026-9-11