Estimating the Concomitance of Lumber Strength Properties


  • Richard A. Johnson
  • William L. Galligan


Proofload, strength properties, correlation, cofunctioning, concomitance


Although lumber bending and tensile strength properties have been extensively studied, their co-functioning—so important to the performance of structures—is not well understood. A novel application of proofloading is now available to wood scientists who need to estimate the cofunctioning of two strength properties. This technique and a statistical analysis of the data developed from the proofload experiments are presented.


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