Analysis of OSB Mat Stucture Made From Industrially Manufactured Strands Using Simulation Modeling

Jeroen H. van Houts, Paul M. Winistorfer, Siqun Wang


Industrially manufactured oriented strandboard (OSB) furnish was characterized by scanning images of a large number of individual strands and analyzing their shape properties. A Visual Basic macro in combination with commercially available image synthesis software was utilized to carry out the task of this analysis. The scanned images of these strands were used in a model that simulates the formation of layers within an OSB mat. These layers were simulated using three different orientation scenarios: random orientation. 100% strand alignment, and strand alignment based on industrial parameters. Information provided by the model includes the number and geometrical details of voids and strand overlap. Total void area for a mat is shown to be independant of strand orientation and the aspect ratio of strands. Interestingly, noticeable differences in the number, size, orientation, and shape factor of the individual voids, which make up the total area, were shown between various mat configurations.


Simulation model;OSB;slenderness ratio;voids;strand overlap;mat structure;dimensional stability

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