Abstract
The mechanical behavior of steamed spruce wood changes dramatically with compression along the grain, the change being much more moderate perpendicular to the grain. The stiffness decrement due to increased temperature is greatest in the tangential material direction. The stiffness decrement due to compression is greatest along the grain. Compression to 80% compressive strain at 131°C inverts the order of the material directions regarding stiffness, the stiffness being the least along the grain. Plastic strain due to compression is greater at higher temperatures. The compression-induced decrement of stiffness along the grain is greater at higher temperatures, but the off-axis decrement of stiffness is less at higher temperatures.
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KÄrenlampi, P., TynjÄlÄ, P. & StrÖm, P. Effect of temperature and compression on the mechanical behavior of steam-treated wood. J Wood Sci 49, 298–304 (2003). https://doi.org/10.1007/s10086-002-0503-9
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DOI: https://doi.org/10.1007/s10086-002-0503-9