Summary
Experimental data from a series of experiments indicate that the existence of compression damage in timber has a pronounced effect on its toughness, considerably less effect on its tensile strength, and almost no effect on its bending strength. Whereas the toughness of dry timber was reduced by up to 40 per cent at high levels of precompression, toughness of green timber actually increased by up to 37 per cent. The reduction in tensile strength was greater for individual cells and thin sections than for solid timber. The results are discussed in terms of slip plane development and behaviour, and the practical significance of compression damage is emphasised.
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Dinwoodie, J.M. Failure in timber part 3: The effect of longitudinal compression on some mechanical properties. Wood Sci. Technol. 12, 271–285 (1978). https://doi.org/10.1007/BF00351929
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DOI: https://doi.org/10.1007/BF00351929