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undergraduate thesis
Utjecaj usmjerenosti strukture na tvrdoću drva ariša
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:856456
Pendić, Dražen
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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Pendić, D. (2022). Utjecaj usmjerenosti strukture na tvrdoću drva ariša (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:856456

Pendić, Dražen. "Utjecaj usmjerenosti strukture na tvrdoću drva ariša." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:856456

Pendić, Dražen. "Utjecaj usmjerenosti strukture na tvrdoću drva ariša." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:856456

Pendić, D. (2022). 'Utjecaj usmjerenosti strukture na tvrdoću drva ariša', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:856456

Pendić D. Utjecaj usmjerenosti strukture na tvrdoću drva ariša [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:856456

D. Pendić, "Utjecaj usmjerenosti strukture na tvrdoću drva ariša", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:856456

Metadata
TitleUtjecaj usmjerenosti strukture na tvrdoću drva ariša
Title (english)Effect of structural orientation on the hardness of larch wood
AuthorDražen Pendić
MentorVera Rede (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
U završnom radu istražen je utjecaj usmjerenosti strukture drva sibirskog ariša (Larix sibirica) na njegovu tvrdoću. Teorijski dio rada opisuje strukturu drva te osnovna mehanička svojstva drva. Eksperimentalni dio prikazuje rezultate ispitivanja dobivene mjerenjem tvrdoće po Brinellu u ovisnosti o usmjerenosti strukture. Tvrdoća je mjerena od poprečnog prema radijalnom presjeku te od poprečnog prema tangencijalnom presjeku u sekvencama od po 15°. Zbog očekivanog velikog rasipanja za svaki presjek napravljeno je po deset mjerenja. Rezultati su pokazali da usmjerenost strukture ima značajan utjecaj na tvrdoću drva. Najveća vrijednost tvrdoće dobivena je u poprečnom presjeku (51,91 HB), a najniže u tangencijalnom presjeku (32,43 HB) i radijalnom presjeku (32,19 HB). Iako je rasipanje rezultata relativno veliko, koeficijent varijacije je ispod dopuštene granice.
Abstract (english)
This study deals with the influence of structural orientation on the hardness of siberian larch (Larix sibirica) wood. Theoretical part of the study describes the structure of wood and main mechanical properties of wood. Experimental part shows us the results obtained by measuring Brinell hardness as a function of the orientation of the structure. Hardness is measured from transverse to radial cross-section and from transverse to tangetial cross-section in sequences of 15° each. Due to expected dissipation ten measurements were made for each angle. The results have showed that structural orientation has large influence on hardness of a wood. The highest value of hardness was obtained in the transverse cross-section (51.91 HB) and the lowest in the tangential cross-section (32.43 HB) and in radial cross-section (32.19 HB). Coefficient of variation for all tested angles is below upper limit even though the scatter of the results is large.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:856456
Study programmeTitle: Mechanical 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 on2022-02-24 07:06:40