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A fracture mechanics approach to the tensile strength perpendicular to grain of dimension lumber

✍ Scribed by A. P. Schniewind; D. E. Lyon

Publisher
Springer
Year
1973
Tongue
English
Weight
948 KB
Volume
7
Category
Article
ISSN
0043-7719

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✦ Synopsis

Six hundred short sections taken from 23 flatsawn 2 x 12-inch planks of construction grade Douglas-fir were tested in tension perpendicular to grain. ~ost of the specimens contained defects in the form of checks, knots, resin streaks, pitch pockets, and pith. Checks were found to be the major strength-reducing defect. The effect of checks could be analyzed effectively by using the concepts of fracture mechanics.

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