The Coefficients of Thermal Expansion of Wood and Wood Products
Abstract
Abstract Because of the lack of data on the thermal expansion of natural solid wood and many wood products, such as plywood, impreg, compreg, and many others, studies were conducted at the Forest Products Laboratory in an effort to obtain such data. The coefficients of linear thermal expansion, called α were measured on a wide variety of wood materials in three structural directions. General formulas were developed which permit calculation of the coefficients of linear thermal expansion in any grain direction of the specimen from the original and final specific gravities, the percentage by weight of resin and glue present, the percentage of cross-banding, and the slope of grain relative to any three axes of reference.
Reference
R. C. Weatherwax; A. J. Stamm. (1947). The Coefficients of Thermal Expansion of Wood and Wood Products. Journal of Fluids Engineering. https://doi.org/10.1115/1.4017423
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