Abstract
Six-inch-long cylindrical or half-cylindrical stem sections from suppressed stands in two western Montana locations, tested when dry in compression, showed that specific gravity and two mechanical properties - maximum crushing strength parallel to the grain, and modulus of elasticity (MOE) - are positively correlated with average rings per inch. Unmachined (not doweled) 2-inch-diameter and larger rounds have about one-third higher MOE and one-tenth higher maximum crushing strength than dowels of the same diameter that have had 1/4 to 1/2 inch of radius machined from them in the doweling process. A sub-experiment indicated that MOE of cylindrical stem sections nondestructively measured in compression parallel to the grain did not differ significantly from MOE measured on the sections in tension and bending.
Original language | English |
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Pages (from-to) | 31-38 |
Number of pages | 8 |
Journal | Forest Products Journal |
Volume | 36 |
Issue number | 3 |
State | Published - Mar 1986 |