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Primerjava mehanskih lastnosti recentnega in 400 let starega lesa evropskega macesna = Comparison of mechanical properties of recent and 400-year-old European larch woodLipovec Zupanc, Enej ; Fajdiga, Gorazd ; Humar, MihaLes velja za vodilni gradbeni material v zgodovini človeštva. Pred drugimi inženirskimi materiali ima veliko prednosti, kar ga uvršča med vodilne materiale prihodnosti. Zelo pomembno je dejstvo, da ... les kot naraven material uvrščamo v skupino materialov, ki imajo majhen negativen vpliv na okolje. Poleg tega je njegova predelava energijsko nezahtevna. Zaradi ponovne široke uporabe v gradbeništvu je pomembno dobro poznati in tudi napovedati mehanske lastnosti ter ovrednotiti posledice delovanja biotskih in abiotskih dejavnikov na mehanske lastnosti skozi daljše časovno obdobje. Od tega je odvisna tudi varnost starejših zgradb. Tako smo ob priložnosti primerjali mehanske lastnosti svežega evropskega macesna (Larix decidua) in okoli 400 let starega macesna, odvzetega iz Ruardove graščine na Stari Savi na Jesenicah. V okviru tega prispevka smo ovrednotili statično upogibno trdnost in vpliv cikličnih obremenitev na obnašanje stare in sveže posekane macesnovine. Vpliva staranja na upogibno trdnost nismo potrdili. Rezultati utrujanja lesa kažejo, da je star les prenesel približno 18-krat manj obremenitvenih ciklov kot recentni les macesnaSource: Les = Wood. - ISSN 0024-1067 (Letn. 70, št. 2, 2021, str. 31-40)Type of material - article, component part ; adult, seriousPublish date - 2021Language - slovenianCOBISS.SI-ID - 78746371
Author
Lipovec Zupanc, Enej |
Fajdiga, Gorazd |
Humar, Miha
Topics
les |
macesen |
mehanske lastnosti |
Ruardova graščina |
star les |
star les |
European larch |
fatigue |
wood |
Ruard's Mansion |
old wood |
old wood
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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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Lipovec Zupanc, Enej | |
Fajdiga, Gorazd | 15683 |
Humar, Miha | 19106 |
Source: Personal bibliographies
and: SICRIS
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