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Can microcomputers be useful in modelling plywood properties?

, : Can microcomputers be useful in modelling plywood properties?. Przemys Drzewny 40(7): 20-23

A model developed for the ZX SPECTRUM microcomputer is described which enables rapid prediction of board properties for a given construction or can be used to design boards with specified mechanical properties. Construction details include board thickness, veneer thickness, number of plies, configuration of plies, species and moisture content.

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Related references

Hrazsky, J.; Kral, P., 2006: Effects of the thickness of rotary-cut veneers on properties of plywood sheets. Part 2. Physical and mechanical properties of plywood materials. The second part of the paper summarizes results of an institutional research aimed at the determination of physical and mechanical properties of different sets of plywood sheets pressed under different conditions. The first part dealt with the det...

Ebihara, T., 1978: Mechanical properties of plywood containing defects in core veneer. I. Effects of core gaps on bending properties of plywood. The bending properties of 3-ply and 5-ply plywood of different constructions having core gaps of various widths were compared with those of clear materials. The relations between the MOE in bending and the bending strength of specimens with and wi...

Bier, H., 1984: Radiata pine plywood - the strength properties of small clear specimens of plywood. Tests were made on small clear specimens of 15 mm 5-ply plywood for bending with the span parallel to the face grain, bending with the span perpendicular to the face grain, compression parallel to the face grain after storage in 4 different enviro...

Bier, H., 1983: Radiata pine plywood: a theoretical prediction of the bending properties of structural plywood. The effect of the grain disturbance around a knot on the stiffness of radiata pine veneer was calculated by investigating the change in orientation of direct stress with respect to an assumed circular grain pattern. The grain pattern is related to...

Bier, H., 1983: Radiata pine plywood: an experimental study of the bending properties of structural plywood. Some 116 five-ply panels of radiata pine plywood, 600 mm wide, were tested in bending over a 1050 mm span to determine the dependence of strength and stiffness on knot ratio in the veneer and panel density. MOR was not as dependent on density as w...

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Okuma, M.; Shinozuka, M., 1967: Studies on mechanical properties of plywood. VI. Effect of adhesives on Young's modulus in bending of plywood. cf. F.A. 28 No. 1403.] Specific gravity and Young's modulus (Y) in bending were determined for plywood of various types (3- to 7-ply) made with (a) phenolic, (b) urea, (c) polyvinyl acetate, and (d) synthetic rubber adhesives.