Polímeros: Ciência e Tecnologia
https://revistapolimeros.org.br/article/doi/10.1590/0104-1428.20250044
Polímeros: Ciência e Tecnologia
Original Article

UV exposure analysis on mechanical resistance of rope yarns for offshore mooringa

Daniel Magalhães da Cruz; Marcelo de Ávila Barreto; Larissa Basei Zangalli; Felipe Tempel Stumpf; Carlos Eduardo Marcos Guilherme; Ivan Napoleão Bastos; Ana Lúcia Nazareth da Silva

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Abstract

Polyester (polyethylene terephthalate, PET) and high-modulus polyethylene (HMPE) fibers are currently among the most commonly used materials in the manufacturing of ropes for offshore operations. Several studies have been conducted in analytical, experimental, and numerical domains, addressing various factors such as tensile tests, fatigue, creep, and environmental exposure conditions that influence their mechanical behavior. This work presents data from an experimental study on rupture resistance in semi-finished products (rope yarns) of PET and HMPE fibers subjected to different ultraviolet (UV) radiation exposure durations. The experimental procedure involved UV exposure for up to 84 days, followed by tensile rupture tests based on ISO 2062. The results showed that UV degradation occurs in a monotonic manner for PET, whereas HMPE exhibits relative stability for rope yarns.

 

 

Keywords

experimental characterization, offshore applications, polymeric fibers, strength at break, ultraviolet degradation

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