BF, Dept. of Wood Technology, Lj. (BFLES)
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Mehanske lastnosti lesa pavlovnije : diplomsko delo = Mechanical properties of paulownia wood : B. Sc. thesisPovše, TristanZanimanje za les pavlovnije (Paulownia tomentosa) se je v zadnjih letih močno povečalo, s tem pa tudi potrebe po poznavanju njegovih lastnosti. Cilj raziskave je bil določiti nekatere makroskopske ... strukturne lastnosti in fizikalno-mehanske lastnosti lesa pavlovnije, pridobljenega pri komercialnem ponudniku. Vzorce smo odvzeli iz širinsko lepljene plošče ter glede na širino in geometrijske značilnosti branik določili skupini juvenilnega ter adultnega lesa. S standardnimi testi smo določili širino branik, gostoto lesa, upogibno trdnost in modul elastičnosti, tlačno in strižno trdnost ter udarno žilavost. Les pavlovnije ima letni prirastek več kot 20 mm, širina branik ter gostota juvenilnega in adultnega lesa pa se pri tem ne razlikujeta. Ugotovili smo nekoliko nižjo gostoto lesa pavlovnije s širšimi branikami, vendar statistično neznačilno. Glede na povprečno nizko gostoto lesa 267 kg/m3 smo določili tudi nizke vrednosti tlačne, strižne in upogibne trdnosti. Pri tlačni in upogibni trdnosti smo potrdili pozitivno korelacijo z gostoto lesa. Adultni les pavlovnije je imel v povprečju le 10 % boljšo udarno žilavost kot juvenilni les, razlika pa je zaradi majhne testne populacije statistično neznačilna.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [T. Povše], 2019Language - slovenianCOBISS.SI-ID - 3028617
Author
Povše, Tristan
Other authors
Straže, Aleš |
Merela, Maks |
Gorišek, Željko
Topics
les |
pavlovnija |
juvenilni les |
adultni les |
gostota |
mehanske lastnosti |
wood |
paulownia |
juvenile wood |
adult wood |
density |
mechanical properties
Call number – location, accession no. ... |
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Knjižnica BF za lesarstvo du1 0000000089 IN: 020190024 Knjižnica BF za lesarstvo du1 89 IN: 020190024 |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Povše, Tristan | |
Straže, Aleš | 18149 |
Merela, Maks | 24676 |
Gorišek, Željko | 05732 |
Source: Personal bibliographies
and: SICRIS
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