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Tension strength capacity of finger joined beech lamellas
Fortuna, Barbara (Author), Azinović, Boris (Author), Plos, Mitja (Author), Šuligoj, Tamara (Author), Turk, Goran (Author)

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Abstract
Finger joints with standard geometries and adhesives used for joining coniferous wood are not sufficient in terms of strength when gluing beech wood. A numerical model of finger joined beech lamellas was prepared and simulations of tension tests were made. Parametric studies with multiple variables referring to geometrical properties of finger joints and two different types of applied adhesives were performed. The results showed a high influence of the finger joint geometrical parameters. Experimental tests on the tension strength of the finger joints were performed. To validate the numerical model, 20 mm long finger joints were produced and tested. Two types of adhesives were used, MUF and PRF. The finger joints were pressed under two different pressures. Prior to tension testing, the dynamic modulus of elasticity was measured with a strength grading machine and strength grade assignments were made. The influence of joining of the boards on the dynamic modulus of elasticity was analysed. The results of the tension tests of the finger joints showed a clear influence of the finger joint geometry, where highest strengths were obtained with longer and thinner fingers, while the influence of the adhesive seems to decrease with the length of finger joints

Language:English
Keywords:civil enginnering, engineering structures, beech, finger joint, tension strength
Work type:Scientific work (r2)
Tipology:1.01 - Original Scientific Article
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2020
Number of pages:Str.1-10
Numbering:Vol. XX, iss. XX
UDC:624.07
ISSN on article:0018-3768
DOI:10.1007/s00107-020-01588-9 This link opens in a new window
COBISS.SI-ID:29094659 This link opens in a new window
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Record is a part of a journal

Title:European journal of wood and wood products
Publisher:Springer-Verlag
ISSN:0018-3768
COBISS.SI-ID:6138375 This link opens in a new window

Document is financed by a project

Funder:EC - European Commission
Project no.:OP20.00364
Name:Trajnostno in inovativno gradbeništvo za pametne stavbe
Acronym:TIGR4 smart

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:28.09.2020

Secondary language

Language:Slovenian
Keywords:gradbeništvo, gradbene konstrukcije, bukev, zobati spoj, natezna trdnost

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