Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments
The offshore industry faces significant challenges in the dynamic energy and maritime domain, necessitating robust engineering solutions for mooring systems. This study investigates the impact of ultraviolet radiation A (UV-A) on the mechanical strength of high-strength multifilaments, crucial for...
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| Format: | Article |
| Language: | English |
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CTU Central Library
2025-01-01
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| Series: | Acta Polytechnica |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/ap/article/view/9826 |
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| author | Daniel Magalhães da Cruz Felipe Tempel Stumpf Jakson Manfredini Vassoler Carlos Eduardo Marcos Guilherme |
| author_facet | Daniel Magalhães da Cruz Felipe Tempel Stumpf Jakson Manfredini Vassoler Carlos Eduardo Marcos Guilherme |
| author_sort | Daniel Magalhães da Cruz |
| collection | DOAJ |
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The offshore industry faces significant challenges in the dynamic energy and maritime domain, necessitating robust engineering solutions for mooring systems. This study investigates the impact of ultraviolet radiation A (UV-A) on the mechanical strength of high-strength multifilaments, crucial for offshore mooring. Five fibre types: Aramid, High-modulus polyethylene (HMPE), Liquid crystal polymers (LCP), Polyamide and Polyester, are exposed to UV-A for up to 28 days. Initial mechanical characterisation provides baseline data, while subsequent tests reveal varying degrees of degradation. Polyamide and polyester exhibit superior stability, while Aramid and HMPE show restrained degradation. LCP experiences substantial degradation. Mathematical modelling reveals distinct degradation patterns, emphasising the need for comprehensive understanding in ensuring the safety and efficiency of offshore operations. There are indications that degradation by ultraviolet exposure for Aramid, HMPE, polyamide, and polyester fibres, restricts the constitutive behaviour in terms of strength and extension, but without changing the shape of the curve. These findings provide valuable insights for the offshore industry and guidance future research and development efforts.
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| format | Article |
| id | doaj-art-6d54b713849c454f8a3dce7308c1c3b2 |
| institution | Kabale University |
| issn | 1805-2363 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | CTU Central Library |
| record_format | Article |
| series | Acta Polytechnica |
| spelling | doaj-art-6d54b713849c454f8a3dce7308c1c3b22025-01-14T10:10:10ZengCTU Central LibraryActa Polytechnica1805-23632025-01-0164610.14311/AP.2024.64.0487Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilamentsDaniel Magalhães da Cruz0https://orcid.org/0000-0001-8734-0371Felipe Tempel Stumpf1https://orcid.org/0000-0002-8767-9516Jakson Manfredini Vassoler2https://orcid.org/0000-0002-8548-8935Carlos Eduardo Marcos Guilherme3Federal University of Rio Grande do Sul (UFRGS), Graduate Program in Mechanical Engineering (PROMEC), Applied Mechanics Group (GMAp), 90050-170 Porto Alegre/RS, BrazilFederal University of Rio Grande do Sul (UFRGS), Graduate Program in Mechanical Engineering (PROMEC), Applied Mechanics Group (GMAp), 90050-170 Porto Alegre/RS, BrazilFederal University of Rio Grande do Sul (UFRGS), Graduate Program in Mechanical Engineering (PROMEC), Applied Mechanics Group (GMAp), 90050-170 Porto Alegre/RS, BrazilFederal University of Rio Grande (FURG), Engineering School (EE), Stress Analysis Laboratory Policab, 96203-000 Rio Grande/RS, Brazil The offshore industry faces significant challenges in the dynamic energy and maritime domain, necessitating robust engineering solutions for mooring systems. This study investigates the impact of ultraviolet radiation A (UV-A) on the mechanical strength of high-strength multifilaments, crucial for offshore mooring. Five fibre types: Aramid, High-modulus polyethylene (HMPE), Liquid crystal polymers (LCP), Polyamide and Polyester, are exposed to UV-A for up to 28 days. Initial mechanical characterisation provides baseline data, while subsequent tests reveal varying degrees of degradation. Polyamide and polyester exhibit superior stability, while Aramid and HMPE show restrained degradation. LCP experiences substantial degradation. Mathematical modelling reveals distinct degradation patterns, emphasising the need for comprehensive understanding in ensuring the safety and efficiency of offshore operations. There are indications that degradation by ultraviolet exposure for Aramid, HMPE, polyamide, and polyester fibres, restricts the constitutive behaviour in terms of strength and extension, but without changing the shape of the curve. These findings provide valuable insights for the offshore industry and guidance future research and development efforts. https://ojs.cvut.cz/ojs/index.php/ap/article/view/9826tensile testingmechanical characterisationultraviolet incidencedegradationsynthetic fibresyarn break load |
| spellingShingle | Daniel Magalhães da Cruz Felipe Tempel Stumpf Jakson Manfredini Vassoler Carlos Eduardo Marcos Guilherme Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments Acta Polytechnica tensile testing mechanical characterisation ultraviolet incidence degradation synthetic fibres yarn break load |
| title | Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments |
| title_full | Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments |
| title_fullStr | Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments |
| title_full_unstemmed | Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments |
| title_short | Assessment of the effects of UV-A exposure on the mechanical strength of offshore mooring multifilaments |
| title_sort | assessment of the effects of uv a exposure on the mechanical strength of offshore mooring multifilaments |
| topic | tensile testing mechanical characterisation ultraviolet incidence degradation synthetic fibres yarn break load |
| url | https://ojs.cvut.cz/ojs/index.php/ap/article/view/9826 |
| work_keys_str_mv | AT danielmagalhaesdacruz assessmentoftheeffectsofuvaexposureonthemechanicalstrengthofoffshoremooringmultifilaments AT felipetempelstumpf assessmentoftheeffectsofuvaexposureonthemechanicalstrengthofoffshoremooringmultifilaments AT jaksonmanfredinivassoler assessmentoftheeffectsofuvaexposureonthemechanicalstrengthofoffshoremooringmultifilaments AT carloseduardomarcosguilherme assessmentoftheeffectsofuvaexposureonthemechanicalstrengthofoffshoremooringmultifilaments |