Strength assessment of fiberglass layer configurations in FRP ship materials from yard practices using a statistical approach

Autor: Ismail Abdi, Ma’ruf Buana, Zubaydi Achmad, Octavanny Made Ayu Dwi, Ginta Turnad Lenggo
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Curved and Layered Structures, Vol 11, Iss 1, Pp p. 1-8 (2024)
Druh dokumentu: article
ISSN: 2353-7396
2024-0007
DOI: 10.1515/cls-2024-0007
Popis: Fiberglass Reinforced Polymer (FRP) is a type of composite extensively used in small boats in Indonesia. Most FRP research focuses on general applications and research on FRP materials is not aligned with actual yard practices in lamination. This study examined the mechanical characteristics of marine-grade FRP composites applied to ships, considering fiberglass layer configurations that conform to yard practices and their compliance analysis with several international classification rules. Samples from Bojonegara and Makassar 3 met the criteria of the Indonesian Classification Bureau, Korean Register, and American Bureau of Shipping rules for tensile and bending strength and have the best specific strength. Analysis of Variance showed that the differences in fiberglass layer configurations had a significant impact on tensile and bending strength. Grouping using Tukey Simultaneous Tests indicated that samples with four or five layers showed tensile and bending strength that were not significantly different statistically. The Unsaturated Polyester Resin brand had a considerable impact on tensile strength but a less pronounced effect on bending strength. Sample Bojonegara and Makassar 3 can be recommended for practitioners in FRP shipyards as they have met the requirements of international regulations.
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