Abstract
The flexural properties in the longitudinal direction for natural and thermo-hydro-mechanically densified Moso bamboo (Phyllostachys pubescens Mazel) culm wall material are measured. The modulus of elasticity (MOE) and modulus of rupture (MOR) increase with densification, but at the same density, the natural material is stiffer and stronger than the densified material. This observation is primarily attributed to bamboo’s heterogeneous structure and the role of the parenchyma in densification. The MOE and MOR of both the natural and densified bamboo appear linearly related to density. Simple models are developed to predict the flexural properties of natural bamboo. The structure of the densified bamboo is modelled, assuming no densification of bamboo fibers, and the flexural properties of densified bamboo are then predicted using this structure and the same cell wall properties of that of the natural material modelling. The results are then compared with those for two analogous structural bamboo products: Moso bamboo glulam and scrimber.
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References
Amada S, Ichikawa Y, Munekata T, Nagase Y, Shimizu H (1997) Fiber texture and mechanical graded structure of bamboo. Compos Part B Eng 28B:13–20
Archila-Santos HF, Ansell MP, Walker P (2014) Elastic properties of thermo-hydro-mechanically modified bamboo (Guadua angustifolia Kunth) measured in tension. Key Eng Mater 600:111–120
Ashby MF (2000) Multi-objective optimization in material design and selection. Acta Mater 48:359–369
Bodig J, Jayne BA (1982) Mechanics of wood and wood composites. Van Nostrand Reinhold, New York
Borrega M, Kärenlampi PP (2008) Mechanical behavior of heat-treated spruce (Picea abies) wood at constant moisture content and ambient humidity. Holz Roh- Werkst 66:63–69
Dixon PG, Gibson LJ (2014) The structure and mechanics of Moso bamboo material. J R Soc Interface 11:20140321
Dixon PG, Ahvenainen P, Aijazi AN et al (2015) Comparison of the structure and flexural properties of Moso, Guadua and Tre Gai bamboo. Constr Build Mater 90:11–17
Esteves BM, Pereira HM (2009) Wood modification by thermal treatment: a review. BioResources 4:370–404
FAO (2010) Global forest resources assessment 2010. Food and Agriculture Organization of the United Nations (FAO), Rome
Forest Products Laboratory (2010) Wood handbook. Forest Products Laboratory USDA, Madison
Gibson LJ, Ashby MF (1997) Cellular solids: Structure and Properties, 2nd edn. Cambridge University Press, Cambridge
Gritsch CS (2004) developmental changes in cell wall structure of phloem fibres of the bamboo dendrocalamus asper. Ann Bot 94:497–505
Grosser D, Liese W (1971) On the anatomy of Asian bamboos, with special reference to their vascular bundles. Wood Sci Technol 5:290–312
Inoue M, Norimoto M, Tanahashi M, Rowell RM (1993) Steam or heat fixation of compressed wood. Wood Fiber Sci 25:224–235
Jiang Z (2007) Bamboo and rattan in the world. China Forestry Publishing House, Beijing
Kamke FA (2006) Densified radiata pine for structural composites. Maderas Cienc Tecnol 8:83–92
Kamke FA, Casey LJ (1988) Fundamentals of flakeboard manufacture: internal-mat conditions. For Prod J 38:38–44
Kamke FA, Rathi VM (2011) Apparatus for viscoelastic thermal compression of wood. Eur J Wood Wood Prod 69:483–487
Kamke FA, Sizemore H (2008) Viscoelastic thermal compression of wood. US Patent 7404422 B2, 29 July 2008
Kutnar A, Kamke FA, Sernek M (2008) The mechanical properties of densified VTC wood relevant for structural composites. Holz Roh- Werkst 66:439–446
Kutnar A, Kamke FA, Sernek M (2009) Density profile and morphology of viscoelastic thermal compressed wood. Wood Sci Technol 43:57–68
Lam F (2001) Modern structural wood products. Prog Struct Eng Mater 3:238–245
Lee AWC, Bai X, Peralta PN (1996) Physical and mechanical properties of strandboard made from moso bamboo. For Prod J 46:84–88
Liese W (1987) Research on bamboo. Wood Sci Technol 21:189–209
Liese W, Weiner G (1996) Ageing of bamboo culms. A review. Wood Sci Technol 30:77–89
Liu H, Jiang Z, Zhang X, Liu X, Sun Z (2014) Effect of fiber on tensile properties of moso bamboo. BioResources 9:6888–6898
Lo TY, Cui H, Leung H (2004) The effect of fiber density on strength capacity of bamboo. Mater Lett 58:2595–2598
Semple KE, Kamke FA, Kutnar A, Smith GD (2013) Exploratory thermal-hydro-mechanical modification (THM) of moso bamboo (Phyllostachys pubescens Mazel). In: Medved S, Kutnar A (eds) Characterisation of modified wood in relation to wood bonding and coating performance. Rogla, Slovenia, pp 220–227
Semple KE, Vnučec D, Kutnar A et al (2015a) Bonding of THM modified Moso bamboo (Phyllostachys pubescens Mazel) using modified soybean protein isolate (SPI) based adhesives. Eur J Wood Wood Prod 73:781–792
Semple KE, Zhang PK, Smith GD (2015b) Hybrid oriented strand boards made from Moso bamboo (Phyllostachys pubescens Mazel) and Aspen (Populus tremuloides Michx.): species-separated three-layer boards. Eur J Wood Wood Prod 73:527–536
Semple KE, Zhang PK, Smith GD (2015c) Stranding moso and guadua bamboo. Part I. Strand production and size classification. BioResources 10:4048–4064
Semple KE, Zhang PK, Smith GD (2015d) Stranding moso and guadua bamboo. Part II. Strand surface roughness and classification. BioResources 10:4599–4612
Shao Z-P, Fang C-H, Huang S-X, Tian G-L (2010) Tensile properties of Moso bamboo (Phyllostachys pubescens) and its components with respect to its fiber-reinforced composite structure. Wood Sci Technol 44:655–666
Sharma B, Gatóo A, Bock M, Ramage M (2015a) Engineered bamboo for structural applications. Constr Build Mater 81:66–73
Sharma B, Gatóo A, Ramage MH (2015b) Effect of processing methods on the mechanical properties of engineered bamboo. Constr Build Mater 83:95–101
Sharma B, Gatoo A, Bock M et al. (2015c) Engineered bamboo: state of the art. Proc ICE Constr Mater 168:57–67
Shaw MC, Sata T (1966) The plastic behavior of cellular materials. Int J Mech Sci 8:469–478
Smulski S (1997) Engineered wood products: a guide for specifiers, designers and users. PFS Res Found, Madison
Sumardi I, Ono K, Suzuki S (2007) Effect of board density and layer structure on the mechanical properties of bamboo oriented strandboard. J Wood Sci 53:510–515
Sumardi I, Suzuki S, Rahmawati N (2015) Effect of board type on some properties of bamboo strandboard. J Math Fundam Sci 47:51–59
van der Lugt P (2008) Design interventions for stimulating bamboo commercialization: Dutch design meets bamboo as a replicable model. Doctoral, VSSD
Vogtländer J, van der Lugt P, Brezet H (2010) The sustainability of bamboo products for local and Western European applications. LCAs and land-use. J Clean Prod 18:1260–1269
Wang XQ, Li XZ, Ren HQ (2010) Variation of microfibril angle and density in moso bamboo (Phyllostachys pubescens). J Trop For Sci 22:88–96
Wang Y, Leppänen K, Andersson S, Serimaa R, Ren H, Fei B (2012) Studies on the nanostructure of the cell wall of bamboo using X-ray scattering. Wood Sci Technol 46:317–332
Wang H, An X, Li W, Wang H, Yu Y (2014) Variation of mechanical properties of single bamboo fibers (Dendrocalamus latiflorus Munro) with respect to age and location in culms. Holzforschung 68:291–297
Winistorfer PM, Moschler WW, Wang S, DePaula E, Bledsoe BL (2000) Fundamentals of vertical density profile formation in wood composites. Part I. In-situ density measurement of the consolidation process. Wood Fiber Sci 32:209–219
Wolcott MP, Kamke FA, Dillard DA (1994) Fundamental aspects of wood deformation pertaining to manufacture of wood-based composites. Wood Fiber Sci 26:496–511
Yildiz S, Gezer ED, Yildiz UC (2006) Mechanical and chemical behavior of spruce wood modified by heat. Build Environ 41:1762–1766
Yu Y, Fei B, Zhang B, Yu X (2007) Cell-wall mechanical properties of bamboo investigated by in situ imaging nanoindentation. Wood Fiber Sci 39:527–535
Yu Y, Zhu R, Wu B, Hu Y, Yu W (2015) Fabrication, material properties, and application of bamboo scrimber. Wood Sci Technol 49:83–98
Zhang YM, Yu YL, Yu WJ (2013) Effect of thermal treatment on the physical and mechanical properties of phyllostachys pubescen bamboo. Eur J Wood Wood Prod 71:61–67
Acknowledgments
This paper is based upon work supported by the National Science Foundation under OISE: 1258574. The views expressed in this paper are not endorsed by the National Science Foundation. Research at UBC on densification of bamboo was supported by the National Science and Engineering Research Council of Canada (NSERC), and the Green Building Materials Laboratory at Oregon State University (OSU). We would like to thank Alan Schwartzman for training and assistance with the Hysitron TriboIndenter.
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Dixon, P.G., Semple, K.E., Kutnar, A. et al. Comparison of the flexural behavior of natural and thermo-hydro-mechanically densified Moso bamboo. Eur. J. Wood Prod. 74, 633–642 (2016). https://doi.org/10.1007/s00107-016-1047-9
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DOI: https://doi.org/10.1007/s00107-016-1047-9