Jonathon Tanks
(National Institute for Materials Science
)
;
Kimiyoshi Naito
(National Institute for Materials Science
)
;
Hisai Ueda
Description:
(abstract)Fiber reinforced polymer (FRP) composites are becoming more frequently adopted as so-called “corrosion-resistant” concrete reinforcement materials, due to their excellent mechanical properties and formability. However, their long-term reliability must be thoroughly investigated in order to understand the failure mechanisms and develop service life models. This study is on the me-chanical properties of a prototype basalt fiber reinforced polypropylene (BFPP) rod under qua-si-static and sustained loading. Static strength and modulus at elevated temperatures do not de-crease significantly, but the variability in strength increases with temperature, as shown by Weibull analysis. Creep behavior is typical of unidirectional FRP, where the creep rupture strength follows a power law. Fatigue at various stress ratios R reveals the sensitivity of composite strength to the matrix damage, which increases at lower values of R (i.e., higher stress amplitudes). These results are discussed in the context of service life and concrete structure design guidelines.
Rights:
Keyword: Thermoplastic composite, Basalt fiber, Fatigue properties, Creep properties
Date published: 2021-09-16
Publisher: MDPI AG
Journal:
Funding:
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.3390/polym13183136
Related item:
Other identifier(s):
Contact agent:
Updated at: 2024-01-05 22:14:08 +0900
Published on MDR: 2023-11-28 13:30:24 +0900
Filename | Size | |||
---|---|---|---|---|
Filename |
Characterization of the Static, Creep, and Fatigue Tensile Behavior of BFPP Composite Rods for Passive Reinforcement.pdf
(Thumbnail)
application/pdf |
Size | 4.23 MB | Detail |