Working Group 3
Strength, stiffness and appearance grading
WG 3 focuses on reviewing the use of existing systems of measurement, encouraging their wider application and providing a forum for co-operation in the development of new advanced grading systems. The following topics are included. Working areas for suitable and accurate grading are:
More advanced non-destructive methods and combination of methods for strength grading. For example flexible systems combining strength and appearance
More accurate and high-speed machines at a reasonable cost
Grading early in the production process. For example, grading logs to obtain an enrichment of logs that, after sawing, are more likely to give higher yields of structural timber
Visual strength grading by means of surface scanning techniques. Existing systems could be further developed for grading with respect to strength.
On-line strength gradin
Courtesy of Mikael Perstorper
