Modulus Mapping and its Use to Determine the Effect Process of Drying on the Cells of Spruce

Abstract:

This article discusses the potential impact of artificial drying to individual cells respectively cell wall, which pass through during the drying process to a rapid loss of water. Parameter of micromechanical properties was used to determine the effect of drying. New method, called "modulus mapping" was used to determine the mechanical properties on nano, micro level. It was found that the indentation modulus of artificially dried sample was lower than for naturally dried sample.

• Periodical: Key Engineering Materials (Volume 714)
• Pages: 25-28
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.714.25
• Online since: September 2016
• Authors: Zdeněk Prošek*, Jaroslav Topič, Pavel Tesárek, Václav Nežerka, Vlastimil Králík
• Keywords: Cell Wall, Micromechanical Properties, Modulus Mapping, NanoDMA, Norway Spruce

References

[1] M. Riedl et al., Zpráva o stavu lesa a lesního hospodářství České republiky za rok 2013, Praha, Ministerstvo zemědělství, (2014).

[2] O. Ševců, J. Vinař, M. Pacáková, Metodika ochrany dřeva, Praha, Nakladatelství Jalna, (2000).

[3] D. Bousquet, Lumber Drying: An Overview of Current Processes, Vermont, University of Vermont Extension, (2000).

[4] B. A. Jayne, Mechanical properties of wood fibers, Tappi 42 (1959) 41-46.

[5] R. Wimmer, B. N. Lucas, T. Y. Tsui, W. C. Oliver, Longitudinal hardness and Young's of spruce tracheid secondary walls nanoindentation technique, Wood Science and Technology 31 (1997) 131-141.

DOI: 10.1007/bf00705928

[6] R. Wimmer , B. N. Lucas, Comparing mechanical properties of secondary wall and cell corner middle lamella in spruce wood, IAWA 18 (1997) 77-88.

DOI: 10.1163/22941932-90001463

[7] Z. Prošek et al., Microstructure Description and Micromechanical Properties of Spruce Wood, Acta Polytechnica 55 (2015) 39–49.

DOI: 10.14311/ap.2015.55.0039

[8] Z. Prošek et al., Micromechanical Properties of Spruce Tissues Using Static Nanoindentation and Modulus Mapping, Applied Mechanics and Materials 732 (2015) 115–118.

DOI: 10.4028/www.scientific.net/amm.732.115

[9] S. A. Asif, K. J. Wahl, R. J. Colton, O. L. Warren, Nanoindentation and contact stiffness measurement using force modulation with a capacitive load-displacement transducer. Review of Scientific Instruments 70 (1999) 2408-2413.

DOI: 10.1063/1.1149769

[10] S. A. Syed Asif et al., Quantitative imaging of nanoscale mechanical properties using hybrid nanoindentation and force modulation, Journal of Applied Physics 90 (2001) 1994-1200.

DOI: 10.1063/1.1380218

[11] P. Klapálek, L. Melzerová, Methods of non-destructive assessment of timber, Applied Mechanics and Materials 732 (2015) 369–372.

DOI: 10.4028/www.scientific.net/amm.732.369