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Analiza odzivnosti ivernih plošč z različnim deležem zunanjega sloja na mehanske obremenitve [Elektronski vir] : magistrsko delo = Analysis of the response of particleboard with different surface layers on mechanical loading : M. Sc. ThesisČerne, Gregor MatijaIverne plošče so ključnega pomena v lesarstvu in si brez njih težko predstavljamo sodobno industrijo, saj odsluženemu lesu ali hlodovini slabše kakovosti dodajo nov pomen. Sama uporabnost ivernih ... plošč je odvisna od številnih dejavnikov, med pomembnejšimi je struktura plošče, predvsem razmerje med finejšimi frakcijami v zunanjih slojih in srednjih iveri v notranjem. Kljub simetričnosti ivernih plošč se opazi razliko med zgornjo in spodnjo stranjo, kar posledično vpliva na lokacijo nevtralne osi in upogibno trdnost. Da bi ugotovili korelacijo med lokacijo nevtralne osi in upogibno trdnostjo ivernih plošč, smo izdelali asimetrične plošče. V osnovi smo izdelali trislojne iverne plošče in sicer je bilo razmerje med zunanjima in srednjim slojem 50/50, pri čemer smo spreminjali delež iveri zunanjega sloja. Pri referenčni plošči je bilo razmerje med spodnjim in zgornjim zunanjim slojem 50/50, pri plošči B je bilo razmerje 30/70, pri plošči C pa 10/90. Ploščam smo določili gostoto, gostotni profil, upogibno trdnost, natezno trdnost, razslojno trdnost in nevtralno os. Ugotovili smo, da se s spreminjanjem zgradbe plošče, predvsem količine gradnikov v posameznem zunanjem sloju, spreminja upogibna trdnost in mesto lokacije nevtralne.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [G. M. Černe], 2024Language - slovenianCOBISS.SI-ID - 200200451
Author
Černe, Gregor Matija
Other authors
Medved, Sergej |
Fajdiga, Gorazd
Topics
iverna plošča |
nevtralna os |
razmerje zunanji notranji sloj |
mehanske obremenitve |
particle board |
neutral axis |
ratio outer inner layer |
mechanical loading
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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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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Černe, Gregor Matija | ![]() |
Medved, Sergej | 15410 |
Fajdiga, Gorazd | 15683 |
Source: Personal bibliographies
and: SICRIS
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