Dynamic and static comparison of Dovetail , Tongue and Groove in Firs

Mollahassani, Amir; Hemmasi, Amir Hooman; Khademi Eslam, Habibollah; Lashgari, Amir; Baziyar, Behzad

doi:10.22092/ijwpr.2020.127777.1571

Document Type : Research Paper

Authors

¹ Ph.D. Student, Department of Wood and Paper Science, Faculty of Natural Resources and Environment , Science and Research Branch, Islamic Azad University, Tehran, Iran.

² Professor, Department of Wood and Paper Science, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran

³ Associate professor, Department of Wood and Paper Science, Faculty of Natural Resources and Agriculture, Karaj Branch, Islamic Azad University, Karaj, Iran.

⁴ Assistant professor, Department of Wood and Paper Science, Faculty of Natural Resources and Environment , Science and Research Branch, Islamic Azad University, Tehran, Iran.

https://doi.org/10.22092/ijwpr.2020.127777.1571

Abstract

The aim of this study is to evaluate the dynamic and static of elastic properties of Fir wood joints. For this purpose conventional joints in woos industry including dovetail, tongue and groove beech wood (Abies alba.) joints with polyvinyl acetate (PVA) and cyanoacrylate (CA) adhesives were used. Dimensions of research samples were determined 24×50×360 (mm) according to international standard (ISO No.3129), and the results indicate that the effects of joint type, adhesive type, joint size, and also retrospective joint size became meaningful at 5% level in dynamic and static tests. As the length of groove and height of dovetail and length of dowel increased in the joints, dynamic and static elasticity modules increased, and in terms of changes in elasticity modules of the research. Elasticity module for dovetail joint, as a result of the shape, having a homogenous joint texture, and also lack of extended adhesive line in the joint, is closer to un jointed samples (control group). Also cyanoacrylate adhesive improved elasticity features of samples compared to polyvinyl acetate adhesive as a result of higher tension resistance and faster coagulation. The results of the Student's t-test indicate that there exists a not significant difference between the mean of dynamic and the mean of static modulus of elasticity, not significance at 5% level and The Pearson correlation test indicate that the dynamic and static modulus of elasticity of the samples are significant at 5% level and are of positive correlation(+.0958) .With regard to the correlation of the results of dynamic and static tests, methods for non-destructive dynamic investigation may be regarded as appropriate alternatives to destructive static tests, in order to assess and classify woods.

Keywords

References

-Anonymous. 2000, Wood Hand book.Wood as an Engineering Material Agricultural. Handbook 72. UDSA. Forest product Laboratory. Madison WI, 42-48.

-Altun, S., Burdurlu, E. and Kilic, M., 2010. Effect of adhesive type on the bending moment capacity of miter frame corner joints. Bioresources Journal, 5(3): 1473-1483

- Bodig J. and Jayne B.A., 1993. Mechanics of Wood and Wood Composites. Malabar; Krieger Publishing Company, 712P

-Brancheriau, L., Kouchade, C. and Bremaud, I., 2010. Internal friction measurement of tropical species by various acoustic methods. J. Wood Sci. DOI 10.1007/s10086-010-1111-8

- Biechele, T., Chui, YH. and Gong, M., 2010. Assessing stiffness on finger-jointed timber with different non-destructive testing techniques. In: Proc of "the Future of Quality Control for Wood Products". The final conference of COST Action E53. May 4th – 7th; Edinburgh – UK. http://cte.napier.ac.uk/e53

-Custodio, J., Broughton, H. and Cruz, A., 2009. A Review of Factors Influencing the Durability of Structural Bonded Timber Joint. International Journal of Adhesion&Adhesive. 29:173-185

-Ceraldi, C., Mormone, C. and Ermolli, E., 2001. Resistographic Inspection of Acient Timber Structures for the Evaluation of Mechanical Characteristics.Material Structure Journal.34:59-64

-Dalvand, M. and Moradpour, D., 2017.Analysis of stress-- strain distribution of dowel and glue line in L-type furniture joint by means of fiinite element method. Iranian Journal of Wood and Paper Industries, 8(2): 297-307.

-Derikvand, M., Ebrahimi, G.h. and Eckelman, C.A., 2013. Effect of shoulder thickness on bending moment capacity of mortise and loose tenon joint, Iranian Journal of Wood and Paper Industries, 28(1): 65-75.

- Dalvand, M., Maleki, S., Ebrahimi, G.H. and Haftkhani, A.R., 2011. Determination of stress carrying capacity of doweled corner joints in framed furniture structure constructed of Fir. Iranian Journal of Wood and Paper Industries.

-Derikvand, M., Smardzewski, J., Ebrahimi, G.h, Dalvand, M. and Maleki, S., 2013 .Withdrawal force capacity of mortise and loose tenon T-type furniture joints, Turkish Journal of Agriculture and Forestry, 37: 377–384.

-Eckelman, C., 2003. Textbook of product engineering and strength design of furniture.

-Eckelman, C. and Haviarova, E., 2006. Performance test of school chairs constructed with round mortise and tenon jounts. Forest products journal. 56(3): 51.

-Ghofrani, M. and Noori, H., 2009. Lateral holding strength of wooden dowel, screw and ready-to-assemble joints (RTA joints) constructed of Medium Density Fiberboard (MDF). Iranian Journal of Wood and Paper Science Research, 24(2): 219-231.

-Ghofrani, M., Kahvand, M. and Noori, H., 2015.Stress carrying capacity of Miter Frame corner joints constructed with loose tenon under tension and compression load. Iranian Journal of Wood and Paper Science Research, 30(2):308-319

-Horwood, R., 1999. Wood workers hand book. New Holland publisher, London, 160 p.

-Hossein, M, A., Roohnia, M. and Shahverdi, M., 2009. Some footprints of wood internal defects on three first mode-shapes of free vibration،16th international symposium on nondestructive testing and evaluation of wood, Beiging, China

-Haviarova, E., Eckelman, C. and Erdil, Y., 2001. Design and testing of environmentally friendly wood school chairs for developing countries. forest products journal, 51( 3): 58-64.

-Jackson, A. and Day, D., 1995. Good wood joints. Harpercollins publisher. London, 128 p.

-Jahan Latibari, A., Ghofrani, M. and Noori, H., 2005. Investigation the holding strength of dowel joint constructed of particleboard, Iranian Journal of Agricultural Sciences 11(1): 135-148.

-Kahvand, M., Omrani, P. and Ebrahimi, G.h., 2013. Determination of bending moment resistance of Ttype joints constructed with wood biscuit, Iranian Journal of Wood and Paper Industries

-Kurt, S., Uysal, B., Ozcan, C. and Yildirim, M.N., 2009. The effects of edge banding thickness of Uludag Fir bonded with some adhesives on withdrawal strengths of Beech dowel pins in composite materials, BioResources Journal. 4(4): 1682-1693.

-Kyuchukov, G., Jivkov, V., Karalivanos, A. and Jelacic, D., 1999. Fit influence on the withdrawlal strength of dowel joints from wood composite. Faculty Forestry, University of Zagreb, Zagreb. 125-130 p.

-Maleki, S., Faezipour M., Ebrahimi, G.h., Faezipour, M. and Layeghi, M., 2012 .Investigation on bending moment resistance of L- shaped screwed corner joints constructed of plywood members, Iranian Journal of wood and paper Science Research, 27(4): 732 -742

-Noll, T., 2007. Wood workers joints book. Apple press, United kingdom, 192 p.

-Obataya, E. and Norimoto, M., 2000. Acoustic properties of a reed (Arundo donax L.) used for the vibrating plate of a clarinet. Journal of Acoustical Society of America, 106(2): 1106-1110.

- Roohnia, M., Tajdini, A. and Manouchehri, N., 2011(a). Assessing wood in sounding boards considering the ratio of acoustical anisotropy. ndt&e International. 2011(d); 44:13-20

-Roohnia, M., Hashemi-dizaji, S.F., Brancheriau, L.A., Tajdini, A.H. and Manouchehri, N., 2011(b). Effect of soaking process in water on the acoustical quality of wood for traditional musical instruments, BioResources. 6(2): 2055-2065

-Wegst, U.K.G., 2006. Wood for sound. American Journal of Botany, 93(10): 1439-1448

-Williamson, T.G., 2002. APA Engineeres Wood Handbook, McGraw-Hill, 750. Yang, T.H., Wang S.Y., Lin C.J., Tsai M.J., 2008: Evaluation of the Mechanical Properties of Duglas- fir and Japanese Cedar Lumber and its Structural Glulam by Nondestructive Techniques. Construction and Building Materials, 22: 487-493.

-Zhang, J.L. and Eckelman, C.A., 1993. The bending moment resistance of single–dowel corner joints in case construction, Forest Products Journal 43(6): 19–

Dynamic and static comparison of Dovetail , Tongue and Groove in Firs

References

References

Volume 35, Issue 1 - Serial Number 70April 2020Pages 33-45

Volume 35, Issue 1 - Serial Number 70
April 2020
Pages 33-45