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Improved longitudinal compression performance of a unidirectional fiber‐reinforced composite with a filament covering
Author(s) -
Ruan Fangtao,
Bao Limin
Publication year - 2016
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.23510
Subject(s) - materials science , protein filament , composite material , compressive strength , buckling , compression (physics) , fiber , composite number , tension (geology) , bundle , epoxy , glass fiber , modulus
A filament covering is proposed to improve the longitudinal compressive properties of unidirectional fiber reinforced plastic. Based on compressive buckling theory, fiber buckling can be prevented by shortening the buckling critical wavelength by covering the filament. In this paper, a UHMWPE fiber bundle and a PBO filament were selected as the reinforcing fiber and the covering filament, respectively, to verify this statement. The effect of a covering PBO filament on a UHMWPE fiber reinforced epoxy resin on compressive performance was investigated by a compressive test and morphology observations. Results show that the filament covering has positive effect on the compressive strength of the FRP, and the tension‐exerted filament covering increased the compressive strength and increased the longitudinal compressive modulus of the UFRP. POLYM. COMPOS., 37:3127–3133, 2016. © 2015 Society of Plastics Engineers