A mechanical evaluation of Alaska white spruce

The mechanical properties of Alaska white spruce were tested and the results are reported and compared to similar results for spruce harvested from the contiguous United States. The reported mechanical properties were obtained using small clear specimens, tested in accordance with the requirements of ASTM D 143. Allowable design values for Alaskan white spruce were developed from these data using ASTM D 245 techniques as if the material were graded to the standards of the Northeastern Lumber Manufacturers Association and the Western Wood Products Association. Data from this testing program are shown to possess relatively low coefficients of variation with respect to other such published data sets for small, clear specimen testing. It is believed that the low coefficients of variation are due to the state-of-the-art electronic testing equipment used in this testing program.

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