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Ortotropna elastičnost lesa
ID Torelli, Niko (Author)

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PID: 20.500.12556/rul/93710465-89e0-422b-856e-713b866dd48b

Abstract
Elastična deformacija lesa je posledica raztezanja in veženja kemičnih vezi polimernih sestavin. Tudi pri daljši obremenitvi predstavlja elastična deformacija večinoma poglavitno komponento celotne deformacije lesa. Zato lahko v praksi časovno deformacijo zanemarimo in les v prvem približku obravnavamo kot linearno elastičen material. Predstavljeni sta podajnostna in elastičnostna matrika in izvedena inženirska oblika Hookeovega zakona. Prikazane so elastične konstante za les in nekaj važnih izotropnih materialov.Posamezne elastičnostne konstante so diskutirane z vidika anizotropne zgradbe lesa.

Language:Slovenian
Keywords:les, anizotropija, ortotropna elastičnost, podajnostna matrika, inženirski elastičnostni parametri
Work type:Not categorized
Typology:1.02 - Review Article
Organization:BF - Biotechnical Faculty
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije
Year:2002
Number of pages:Str. 364-369
Numbering:Let. 54, št. 11
PID:20.500.12556/RUL-62774 This link opens in a new window
UDC:630*812.701
ISSN on article:0024-1067
COBISS.SI-ID:956809 This link opens in a new window
Publication date in RUL:10.07.2015
Views:2020
Downloads:221
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Record is a part of a journal

Title:Les
Shortened title:Les
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze
ISSN:0024-1067
COBISS.SI-ID:13940224 This link opens in a new window

Secondary language

Language:Slovenian
Title:Orthotropic elasticity of wood
Abstract:
In wood the elastic deformation occurs by bond stretching and distortion of polymeric constituents. The elastic strain is for the most part the major component of the total strain, even at very long times. For practical purposes the time dependent deformation may be neglected. Accordingly the wood can be treated to a first approximation as a linear elastic material. The compliance and stiffness matrices are presented and related to the engineering form of Hooke's law. Values of elastic constants for wood and some important isotropic materials are presented. The differences among the elastic constants of wood are related to the anisotropy of wood structure.

Keywords:wood, anisotropy, orthotropic elasticity, compliance matrix, engineering elastic parameters

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