Trdnostna analiza lesene konstrukcijske vezi z metodo končnih elementov

Kunstelj, Janez (author), Merhar, Miran (mentor)

V nalogi smo primerjali trdnostni izračun lesene konstrukcijske vezi na podlagi analitičnih izračunov po Evrokod sistemu z izračunom s pomočjo metode končnih elementov. Obravnavano vez smo izdelali in njeno nosilnost eksperimentalno preverili. Za izračun z metodo končnih elementov smo uporabili program Solidworks, kjer smo material vezi modelirali kot linearen ortotropen. Mehanske lastnosti materiala smo določili eksperimentalno z upogibnimi in tlačnimi testi. Ugotovili smo, da z izračunom po Evrokod sistemu dobimo nižje nosilne vrednosti vezi, medtem ko smo dobili s pomočjo metode končnih elementov primerljive vrednosti, kot smo jih dobili z eksperimentalnim preizkusom nosilnosti vezi. Na podlagi ugotovitev lahko trdimo, da je uporaba metode končnih elementov v konstrukcijske namene lesenih vezi smiselna, vendar moramo v izvedbah upoštevati dodatne faktorje varnosti, medtem ko so vrednosti, dobljene z analitičnim izračunom po Evrokod sistemu nižje in že vsebujejo določene faktorje varnosti.

• Language: Slovenian
• Keywords: konstrukcijska vez/metoda končnih elementov/trdnost/les
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [J. Kunstelj]
• Year: 2018
• PID: 20.500.12556/RUL-103355
• UDC: 630*833
• COBISS.SI-ID: 2945929
• Publication date in RUL: 16.09.2018

KUNSTELJ, Janez, 2018, Trdnostna analiza lesene konstrukcijske vezi z metodo končnih elementov [online]. Bachelor’s thesis. J. Kunstelj. [Accessed 1 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=103355

Secondary language

• Language: English
• Title: Strenght analysis of wooden structural bond using finite element method

Abstract

In the thesis the strength calculation of the structural wooden bond based on the analytical methods according to the Eurocode system and calculation using a finite element method is compared. The bond was also made and its load capacity tested experimentally. For the finite element method calculation, Solidworks program was used, where the bond material was modelled as a linear orthotropic. The mechanical properties of the material were determined experimentally with bending and compression tests. It was found out that lower forces of the bond are obtained using Eurocode analytical calculations, while values obtained from the finite element method are comparable to the experimentally obtain values. Based on the findings, it can be said that the use of the finite element method for the construction purposes of wooden bindings is reasonable, but additional safety factors must be taken into account in the praxis, while the values obtained by the analytical calculation according to the Eurocode system are lower and already contain safety factors.

• Keywords: construction bond/finite element method/strength/wood