Summary
A model was developed for estimating elastic and shrinkage properties of a softwood cell wall from the properties of its polymeric constituents: cellulose, hemicellulose and lignin. The theory of composite materials was used. Based on a literature survey, models of latewood, earlywood and compressionwood of a softwood cell wall structure were made. The model takes into account the helical winding of the microfibrils in the cell wall and it estimates the behaviour of a balanced laminated double-cell wall in which rotation is restrained by adjacent cells. The calculated elastic and shrinkage properties were compared with earlier test results and good agreement was found.
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Koponen, S., Toratti, T. & Kanerva, P. Modelling longitudinal elastic an shrinkage properties of wood. Wood Sci.Technol. 23, 55–63 (1989). https://doi.org/10.1007/BF00350607
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DOI: https://doi.org/10.1007/BF00350607