Analysis of resistance to axial withdrawal of screws embedded in locally reinforced MDF

• Autorzy: Sydor M. , Wołpiuk M.

Identyfikatory

DOI

10.12841/wood.1644-3985.093.14

• Języki publikacji: EN

Abstrakty

EN

This paper presents results of the analysis on screw withdrawal strength in locally reinforced MDF. Various amounts of the agent locally reinforcing the boards were applied and universal screws and euro screws were tested. Experiments were conducted using a universal strength testing machine, with samples collected following the guidelines of the ISO 27528:2009 standard. The following parameters were measured: 1) work required for maximum force, 2) maximum force, 3) withdrawal capacity and 4) stiffness. The research showed a 100% increase in resistance to axial withdrawal of universal screws and a 50% increase in euro screws in comparison to the analogous results for the non-reinforced board. Optimal amounts of the reinforcing agents were also determined.

Słowa kluczowe

EN

screw, universal screw; euro screw; withdrawal; holding strength; MDF; fibreboard; local modification; local reinforced

• Wydawca: Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
• Czasopismo: Drewno : prace naukowe, doniesienia, komunikaty
• Rocznik: 2016
• Tom: vol. 59, nr 196
• Strony: 173--182
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Sydor M.

• Poznan University of Life Sciences, Faculty of Wood Technology, Poznan, Poland

autor

Wołpiuk M.

• Poznan University of Life Sciences, Faculty of Wood Technology, Poznan, Poland

Bibliografia

• Geimer R.L., Montrey H., Lehmann W.F. [1975]: Effects of layer characteristics on the properties of three-layer particleboards. Forest Products Journal 25 [3]: 19-29
• Kociszewski M. [2014]: Właściwości sprężyste płyty wiórowej i MDF (Elastic properties of particleboards and MDF). Wydawnictwo Uniwersytetu Kazimierza Wielkiego, Bydgoszcz
• Ławniczak M., Paprzycki O. [1961]: Możliwości zwiększania zdolności utrzymywania wkrętów przez płyty wiórowe (Potential to increase screw holding capacity of particleboards). Przemysł Drzewny 6
• Pohl P., Wołpiuk M. [2011]: Local modification of screw connections in wood-based composites. Komputerni Sistemi Projektuwannia Teoria i Praktika 711: 124-131
• Proszyk S. [2009]: Nowoczesne technologie w klejeniu drewna i uszlachetnianiu powierzchni. In: Projekt „Foresight w drzewnictwie – scenariusze rozwoju badań naukowych w Polsce do 2020 roku”. Instytut Technologii Drewna, Poznań. Retrieved from http://www.itd.poznan.pl/pl/index.php?id=313
• Smardzewski J., Kłos R. [2011]: Modelling of joint substitutive rigidity of board elements. Annals of Warsaw University of Life Sciences SGGW, Forest Wood Technology 73: 7-15
• Taşçioğlu C., Akçay Ç., Yalçin M., Şahin H.I. [2014]: Effects of post-treatment with CA and CCA on screw withdrawal resistance of wood based composites. Wood Research 59 [2]: 343-350
• Wilczyński A., Kociszewski M. [2007]: Bending properties of particleboard and MDF layers. Holzforschung 61 [6]: 717-722
• List of standards
• EN 310 [1993]: Determination of modulus of elasticity in bending and of bending strength
• ISO 27528:2009 [2009]: Wood-based panels – Determination of resistance to axial withdrawal of screws

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.