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undergraduate thesis
Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:801235
Pintur, Karla
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Pintur, K. (2022). Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:801235

Pintur, Karla. "Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:801235

Pintur, Karla. "Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:801235

Pintur, K. (2022). 'Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:801235

Pintur K. Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:235:801235

K. Pintur, "Mehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:801235

Metadata
TitleMehanička svojstva kompozita ojačanih različitim brojem slojeva lanenih vlakana i njihova primjena u brodogradnji
Title (english)Mechanical properties of polymer composites reinforced with different number of layers of flax fibers and their application in shipbuilding
AuthorKarla Pintur
MentorTatjana Haramina (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2022-03-02, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Male brodice uobičajeno se izrađuju od polimernih kompozita ojačanih nerazgradivim staklenim vlaknima. Lanena vlakna usporedivih su mehaničkih svojstava, a uz biorazgradivost njihova je prednost i što se dobivaju iz obnovljivih izvora. U ovom radu izrađeni su kompoziti na bazi epoksidne smole ojačane različitim brojem slojeva biaksijalno orijentiranih lanenih vlakana i istražen je utjecaj broja slojeva na rastezna svojstva kompozita. Analizirana su i savojna svojstva te međuslojna smična čvrstoća. Dobiveni podaci uspoređeni su sa zahtjevima Hrvatskog registra brodova (HRB) za polimerne kompozite ojačane staklenim vlaknima. Istraživanje je pokazalo kako rastezna svojstva i savojni modul neovisno o broju slojeva zadovoljavaju zahtjeve HRB-a. Savojna čvrstoća i prividna međuslojna smična čvrstoća su tek malo niže od propisanih. Kompoziti s više od sedam slojeva vlakana imaju viši maseni udio vlakana i višu istezljivost, a kritična svojstva pri savojnom opterećenju su im slabija nego kod tanjih. Povećanjem udjela smole postigla bi se bolja impregnacija vlakana i uravnoteženost svojstava koja bi zadovoljila zahtjeve HRB-a.
Abstract (english)
Small boats are usually made of polymer composites reinforced with non-degradable glass fibers. Flax fibers have comparable mechanical properties, and in addition to biodegradability, their advantage is that they are obtained from renewable sources. In this paper, composites based on epoxy resin reinforced with different number of layers of biaxially oriented flax fibers were made and the influence of the number of layers on the tensile properties of composites was investigated. Bending properties and interlayer shear strength were also analyzed. The obtained data were compared with the requirements of the Croatian Register of Shipping (CRS) for glass fiber reinforced polymer composites. The research showed that the tensile properties and the bending module, regardless of the number of layers, meet the requirements of CRS. Flexural strength and apparent interlayer shear strength are only slightly lower than prescribed. Composites with more than seven layers of fibers have a higher mass fraction of fibers and higher elongation, and their critical bending properties are weaker than those of thinner ones. Increasing the resin content would achieve better fiber impregnation and a balance of properties that would meet the requirements of CRS.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:801235
Study programmeTitle: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering
Course: Materials Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2022-02-23 12:25:31