Energy Absorption of Spruce Wood under Three Kinds of Quasi-Static Compression Conditions

Abstract:

The curves of stress versus strain along spruce wood axial, radial and tangential directions are gained by static compression experiments. Moisture content and density of the spruce wood are 12.72% and 413 kg/m³ respectively. The results indicate that spruce compression process includes elastic, yield and compaction phases. Failure modes of spruce subjected to axial compression are fiber buckling and wrinkle. And failure modes under radial or tangential compression are wood fiber slippage and delamination. Axial compression yield strength is about nine times as that of radial and tangential compression. Radial and tangential compression yield strengths are almost equal. Energy absorption efficiency and ideality energy absorption efficiency of spruce along different loading directions are analyzed. And theory analytic solution to single wood cell buckling under axial compression is done. The obtained expression shows that the mean limit loading is relative to yield stress, cell structure dimension and wrinkle length for complete wrinkle cases.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 3-9
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.3
• Online since: May 2011
• Authors: Wei Zhou Zhong, Xi Cheng Huang, Zhi Ming Hao, Ruo Ze Xie, Gang Chen
• Keywords: Buckling, Energy Absorption, Orthotropy, Quasi-Static Compression, Spruce

References

[1] C. Adalian and P. Morlier: Composites Science and Technology Vol.61 (2001), pp.403-408

[2] A. Reiterer, H. Lichtenegger, P. Fratzl and S. E. Stanzl-tschegg: Journal of Materials Science Vol.36 (2001), pp.4681-4686

DOI: 10.1023/a:1017906400924

[3] M. Vural and G. Ravichandran: International Journal of Solids and Structures Vol.40 (2003), pp.2147-2170

[4] W.Gindl: Journal of Materials Science Letters Vol.20(23) (2001), pp.2161-2162

[5] Svante Widehammar: Experimental Mechanics Vol.44(1) (2004), pp.44-48

[6] M.Gong and I.Smith: Wood Science and Technology Vol.37 (2004), pp.435-445

[7] Sibel Yildiz, Engin d. Gezer and Umit C. Yildiz: Building and Environment Vol.41(12) (2006), pp.1762-1766

DOI: 10.1016/j.buildenv.2005.07.017

[8] Steffen Orso, Ulrike G.K. Wegst and Eduard Arzt: Journal of Materials Science Vol.41 (2006), pp.5122-5126

[9] P. Trtik, J. Dual, D. Keunecke, D.Mannes, P. Niemz, P. Stäli, A. Kaestner, A. Groso and M. Stampanoni: Journal of Structural Biology Vol.159 (2007), pp.46-55

DOI: 10.1016/j.jsb.2007.02.003

[10] P. Mackenzie-Helnwein, J. Eberhardsteiner and H. A. Mang: Computational Mechanics Vol.31(1-2) (2003), pp.204-218

[11] Weixing Tan, Steve Blanton;J. P. Bielech: New Forests Vol.35(2) (2007), pp.187-205

[12] W. Sonderegger · P. Niemz: Holz Roh Werkst Vol. 62 (2004), pp.335-342

[13] Ala Tabiei and Jin Wu: Composite Structures Vol.50(2) (2000), pp.143-149

[14] Andrey Shipsha and Lars A. Berglund: Composites Science and Technology Vol. 67 (2007), pp.1362-1369

[15] Hakan Keskin, Musa Atar and Abdullah Togay: Construction and Building Materials Vol.22(7) (2008), pp.14022-1408

[16] Miltz J and Gruenbaum G: Polymer Eng Sci Vol. 21(15) (1981), pp.1010-1014.

[17] Tongxi Yu and Guoxing Lu: Energy Absorption of Structures and Materials (Chemical Industry Press, Beijing China 2006)(in Chinese).