Determination of the Bonding Strength of Finger Joints Using a New Test Specimen Geometry

2023-02-02 | journal article. A publication with affiliation to the University of Göttingen.

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​Stolze, Hannes, et al. "Determination of the Bonding Strength of Finger Joints Using a New Test Specimen Geometry​." ​Processes, vol. 11, no. 2, ​2023, , ​doi: 10.3390/pr11020445. 

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Authors
Stolze, Hannes; Gurnik, Michael; Kegel, Sebastian; Bollmus, Susanne; Militz, Holger
Abstract
In this study, a specimen geometry for testing finger joints was developed using finite element simulation and proofed by experimental testing. Six different wood species and three adhesives were used for finger-jointing specimens. With the test specimen geometry, the bonding strength of the finger joints was determined without the usual self-locking of the joint. Under load, the test specimen geometry introduces maximum stress at the beginning of the bond line (adhesive zone). However, the test specimen geometry does not generate a symmetric stress state. The main difficulty here is the flank angle of the finger joint geometry. The wood species and adhesives significantly influenced the performance of the finger joints.
Issue Date
2-February-2023
Journal
Processes 
Organization
Fakultät für Forstwissenschaften und Waldökologie ; Burckhardt-Institut ; Abteilung Holzbiologie und Holzprodukte 
eISSN
2227-9717
Language
English
Sponsor
German Federal Ministry for Economic Affairs and Energy (BMWi)
Open-Access-Publikationsfonds 2023

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