A method is described to determine the distribution of the bending stresses in a wood beam when some of these stresses exceed the proportional limit. This is used to calculate the position of the neutral axis and the bending strength of some Douglas-fir beams. The calculated values agreed with the...
This symposium was arranged and conducted in cooperation with the Research and Products Committee of the National Lumber Manufacturers Association, 1319 Eighteenth St., N.W., Washington 6, D.C. The purpose was to bring together a group of approximately 100 individuals broadly representing various phases of the wood industry, the present wood...
This symposium dealt primarily with one important aspect of wood quality, namely specific gravity as determined in standing timber by the increment core sampling method. It covered the status of research in this area, the importance of the work, present and potential uses for wood density data, and the need...