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1.

Hydrolysis effect on the mechanical resistance on impact cycles in polyamide multifilaments Pages 317-330 Right click to download the paper Download PDF

Authors: Felipe Teixeira Spilka, Daniel Magalhães da Cruz, Maurício de Oliveira Silva, Carlos Eduardo Marcos Guilherme

DOI: 10.5267/j.esm.2025.1.006

Keywords: Experimental Characterization, Dynamic Loads, Polyamide Fibers, Hydrolysis Depolymerization, Sudden Loads, Mechanical Behavior

Abstract:
Offshore moorings play a key role in the stability of maritime structures such as floating oil production platforms. This study focuses on polyamide as a promising alternative for offshore moorings due to its mechanical characteristics and degradation resistance. Initially, characterization tests are carried out to determine the polyamide’s linear density, the rupture strength, and the linear tenacity. Following, impact tests are carried out on polyamide samples, using a methodology based on a free fall mass effect. The analysis of the results includes statistical data filtering and the parameterization of curves to correlate the number of impact cycles to the applied load. Furthermore, the effect of the accelerated hydrolysis on polyamide is investigated, subjecting the samples to an aging process in fresh water for 180 days at 65°C. The results are analyzed to evaluate the effect of the hydrolysis on the resistance to impact cycles. It was concluded that, in general, polyamide shows a promising ability for energy absorption and impact resistance, with the potential for its use in offshore moorings. However, it is necessary to consider the hydrolysis effect on the degradation of its mechanical properties over time. This study contributes to the advancement of knowledge about the performance of polyamide in marine environments, providing important insights for the design and maintenance of offshore mooring systems, and also contemplating an exploratory study for its material's behavior.
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Journal: ESM | Year: 2025 | Volume: 13 | Issue: 3 | Views: 145 | Reviews: 0

 

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