Establishing mathematical model withdrawal resistance of wooden dowel in plywood

Document Type : Research Paper

Authors

Abstract

The goal of this study was to investigate withdrawal resistance of doweled joint with
plywood members and establishing a predicting mathematical model for such joints in
which regularly dowel is installed perpendicular to surface and also edge of plywood.
Joint members were out of 11-ply hardwood plywood (Hornbeam, Beech and Alder)
that were 19 mm in thickness. Dowels were fabricated out of Beech and Hornbeam
species. Their diameters (6, 8 and 10 mm) and depths of penetration (9, 13 and 17
mm) in joint members were chosen variable in this experiment.
Results have shown that withdrawal resistance of doweled joints made on face and
edge of plywood members, increases with increase of dowel’s diameter and its
penetration depth. Joints made with dowels of Hornbeam had higher than dowels of
Beech ones. Highest withdrawal resistances (2951 N, 2441 N) were observed in joint
on face and edge side of plywood members made with dowels of Hornbeam which
were 10 mm in diameter and their depth of penetration was 17 mm. Lowest
withdrawal resistance values (799 N, 784N) were of Beech wood dowels which were 6
mm in diameter and 9 mm penetrated into members.

Keywords

References

[1] Ebrahimi, G. 2007. Engineering design of furniture structure. Tehran university
publication, 491 pp. (In Persian).
[2] Eckelman, C. A. 2004. Engineering Design of furniture. Purdue Uni.UsA. Chap 6.
[3] Eckelman, C. A. 1969. Engineering concepts of single-pin dowel joint design. Forest
products journal 19 (2): 52-59.
[4] Eckelman, C. A., Erdil, Y. Z., Zhang, J. 2002. Withdrawal and bending strength of dowel
joints constructed of plywood and oriented strand board. Forest products journal 52 (9): 66-
74.
[5] Eckelman, C. A. 2004. Textbook of product engineering and strength design of furniture.
West Lafayette (IN): Purdue University Press.
[6] Bahmani, M., Ebrahimi, G., Fathi, L. 2008. Predicting of Withdrawal Strength With
Dowel Joint in Medium Density Fiber (MDF ) By mathematic model. Iranian Journal of
wood and paper Science Research. 24(1): 117-124. (In Persian).
[7] Bahmani, M., Ebrahimi, GH., Veisi, J. 2010. Design of experimental model for predicting
ultimate bending strength dowel joint in medium density fiber. Journal of forest and wood
products (JFWP), Iranian journal of natural resources 62(4): 335-342. (In Persian).
[8] Somchai, V. (1989). Strength of tenon and dowel in teak (Tectona grandis Linn. f.)
Bangkok, 106p.
[9] Dalvand, M., Ebrahimi GH., Tajvidi, M., Layeghi, M. 1392. Investigation effect of
diameter, penetration depth and species types of dowel on the bending moment resistance of
corner joints fabricated with dowel in the case-type furniture. Iranian Journal of wood and
paper Science Research. 28(1): 11-23. (In Persian).
[10] Dalvand, M., Ebrahimi GH., Tajvidi, M., Layeghi, M. 2013. Bending moment resistance
of dowel corner joints in case-type furniture under diagonal compression load. Journal of
Forestry Research. Accepted for publication.
[11] Heydari, H. 2011. Fabricating a wooden bearing for combine and evaluating its
functionality. MS.C Thesis, Department of wood and paper Science and Technology. Faculty
of Nature Resource, University of Tehran. (In Persian).
Iranian Journal of Wood and Paper Industries
Volume 4, Issue 1 - Serial Number 1
January 2012
Pages 37-47

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