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| Title | Publication | Publish Year |
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Effect of Gamma Radiation on the Toughness of Wood
Matched specimens from sapwood of yellow-poplar were subjected to four levels of gamma radiation — 0, 0.85, 0.78, and 0.92 rads x 10 to the 5th. Specimens were 1/8 by […]
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Forest Products Journal | 1962 |
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Effect of Hardboard Process Variables on Fiberbonding
Severely cooked Masonite gun pulp was used in the laboratory to manufacture these four hardboard types: S1S-wet formed, S2S-wet formed, S1S-dry formed (water added after forming), S2S-dry formed. No resins […]
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Forest Products Journal | 1983 |
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Effect of Head Speed and Span on Modulus of Rupture in Several Types of Commercial Hardboards
Thirteen types of hardboard representing four producers, four sources of raw material, three production processes, two thicknesses (1/8- and 1/4-inch), and two classes (treated and untreated) were included in the […]
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Forest Products Journal | 1953 |
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Effect of Heat Upon the Dimensional Stabilization of Wood
This article describes investigations that disprove the hypothesis that stabilization of wood by heat is a cross-linking reaction. Data for the heating of both paper and wood in the presence […]
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Forest Products Journal | 1953 |
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Effect of High-Temperature Drying on Bending Strength of Yellow-Poplar 2 By 4’S
Four different sawing and drying combinations were used to process yellow-poplar logs into 2 by 4’s: conventional sawing with either conventional kiln-drying or with high-temperature drying and flitch sawing with […]
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Forest Products Journal | 1983 |
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Effect of High-Temperature Drying on Quality and Strength of Western Hemlock
The study investigates the feasibility of reducing kiln-drying time by employing temperatures above 212?F. Three schedules were used: the first started with a dry bulb temperature of 220?F. and a […]
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Forest Products Journal | 1965 |
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Effect of High-Temperature Drying on Tensile Strength of Douglas-Fir 2 By 4’S
High-temperature kiln-drying can reduce strength of Douglas- fir. Results of high-temperature drying research, reported in this paper, suggest that drying process variables may need consideration in establishing structural design values […]
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Forest Products Journal | 1979 |
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Effect of High-Temperature Drying on the Grade Yield and Shrinkage of Southern Pine Lumber
This study reveals that high-temperature drying has a significantly higher lumber grade yield with only a slightly (yet significantly) higher shrinkage rate than conventional drying. It has been shown in […]
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Forest Products Journal | 1986 |
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Effect of High-Temperature Drying on the Strength of Southern Pine Dimension Lumber
The strength, stiffness, and toughness of southern pine 2- by 6-inch dimension lumber dried at high temperature were compared with similar lumber dried conventionally. High-temperature drying had no deleterious effect […]
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Forest Products Journal | 1979 |
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Effect of Joint Geometry on Strength of Finger Joints
Using Sitka spruce, Douglas-fir, and white oak, a series of finger joints was constructed with fingers perpendicular to the wide face of the test specimens. The pitch, length of fingers, […]
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Forest Products Journal | 1963 |
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Effect of Joints on Bending Strength and Stiffness of Composite Truss Lumber
Two types of flakeboard core materials, two veneer species, and five joint conditions were evaluated for their effects on modulus of elasticity (MOE) and modulus of rupture (NOR) of composite […]
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Forest Products Journal | 1985 |
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Effect of Lamination Thickness on Strength of Curved Laminated Beams
The project was conducted in two phases: 1) the determination of proportional limit and rupture radii for individual white oak boards, and 2) the fabrication and strength testing of laminated […]
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Forest Products Journal | 1959 |
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Effect of Loading Rate on Bending Strength of Douglas-Fir 2 By 4’s
Select Structural (SS) and No. 2 Douglas-fir lumber specimens were tested at three different rates of loading to determine the rate-of-loading effect on bending strength of lumber and, through a […]
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Forest Products Journal | 1986 |
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Effect of Loading Rate on Tensile Strength of Douglas-Fir 2 By 6’s
Tensile strength of high visual quality lumber appears to be affected by rate of loading. Ten times the standard rate had more effect than 25 times the standard rate both […]
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Forest Products Journal | 1984 |
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Effect of Lumber Width and Tension Lamination Quality on the Bending Strength of Four-Ply Laminated Beams
Eighty 4-lamination southern pine or Douglas-fir beams were evaluated in static bending tests; all test beams were near-minimum quality. Objectives of this study were to determine: 1) the relative strengths […]
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Forest Products Journal | 1982 |
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Effect of Moisture Content on Shear-Through-Thickness Strength of Douglas-Fir Plywood
A random sample of 52, 5-ply, 1/2-inch-thick commercial sheathing grade Douglas-fir plywood panels was cut into a total of 400 15-inch by 24-inch shear-through-thickness specimens. These were grouped into four […]
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Forest Products Journal | 1977 |
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Effect of Moisture Content on Strength of Bolted Timber Connections
In a study of the effects of moisture content on strength of bolted timber connections, joints of 4-3/4-inch bolts in 2-5/8- by 8-inch center members and 1-5/16- by 8-inch side […]
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Forest Products Journal | 1963 |
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Effect of Moisture Content on the Flexural Properties of Douglas-Fir Plywood
This study was undertaken to estimate the effect of MC on the MOR and flexural MOE of commercial (in-grade) Douglas-fir plywood. A random sample of 40, 5-ply, 1/2-inch (12.5-mm)-thick, unsanded, […]
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Forest Products Journal | 1978 |
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Effect of Moisture Content on the Mechanical Properties of Douglas-Fir Plywood in Rolling Shear
A randomly selected sample of 52,5-ply, 1/2-inch-thick commercial sheathing-grade Douglas-fir plywood panels was cut into a total of 400 6-inch by 18-inch rolling-shear specimens. These were grouped into four matching […]
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Forest Products Journal | 1977 |
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Effect of Moisture on Flexural Properties of Clear Southern Pine Plywood
Flexural properties (MOE, MOR, and FSPL) of clear southern pine plywood were obtained at the following MCs: 4, 7, 10, 13, 16, 19 percent, and water-soaked condition. The relationships between […]
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Forest Products Journal | 1979 |
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Effect of Molding Temperature on the Strength and Dimensional Stability of Hardboards from Fiberized Water-Soaked Douglas-Fir Chips
Strong hardboard was made from stock prepared by fiberizing water-soaked Douglas-fir chips. The hardboard was made without resorting to steam-cooking, the incorporation of synthetic resins, or prolonged heat treatment of […]
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Forest Products Journal | 1950 |
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Effect of Particle Geometry on Properties of Molded Wood-Resin Blends
This study shows that particles reduced by hammermilling reflect the geometry of their parent particles down to approximately 80 mesh in size. Stick-like particles, such as those obtained from hammermilled […]
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Forest Products Journal | 1964 |
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Effect of Particle Size and Shape on Strength and Dimensional Stability of Resin-Bonded Wood-Particle Panels
Precisely-cut wood particles in the form of flat flakes, thin strands, helical ribbons, and cubes were converted to resin-bonded panels. The panels ranged from 0.5 to 1.05 specific gravity. They […]
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Forest Products Journal | 1954 |
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Effect of Polyethylene Glycol on the Dimensional Stability of Wood
Polyethylene glycol-1000 stabilizes wood by bulking the fibers. It also serves as a chemical seasoning agent, supresses decay in high concentrations, and has slight effect on physical properties, gluing, or […]
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Forest Products Journal | 1959 |
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Effect of Prefreezing on the Perpendicular-To-Grain Creep of First-Dried Redwood
The effect of prefreezing on dimensional change was determined for 0.200-inch-thick flatsawn and quartersawn samples loaded perpendicular to the grain during drying at either 100?F or 160?F. Prefreezing reduced shrinkage […]
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Forest Products Journal | 1986 |