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| Title | Publication | Publish Year |
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Steam Recovery in a High-Temperature Lumber Dry Kiln By Steam-Jet Thermocompressor
Because drying can consume about 70 percent of the energy required for processing softwood lumber, we investigated the technical and economic feasibility of installing a steam-jet thermocompressor on a super-heated […]
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Forest Products Journal | 1982 |
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Steam-assisted hot-pressing of construction plywood
This study was designed to determine if steam injection pressing used for fiberboard, particleboard, and flakeboard could be adapted to the pressing of plywood. Plywood panels were fabricated with and […]
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Forest Products Journal | 1994 |
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Steam-Bending Properties of Southern Pine
Southern pine wood can be successfully steam-bent if the bending jig incorporates a flexible metal bending strap together with a mechanism to apply a uniform end-compression load during the bending […]
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Forest Products Journal | 1971 |
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Steam-Injection Knife Improves Veneer Quality
Block conditioning chambers to facilitate veneer cutting are expensive to construct, expensive to operate, and create pollution. Also, veneer block temperature is very difficult to control. A new approach to […]
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Forest Products Journal | 1974 |
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Steaming Under Restraint to Remove Warp in Dried Softwood Studs
Kiln-dried ponderosa pine and white fir studs previously rejected for excessive warp were conditioned to a moisture content of 18 percent. They were then clamped and held in a straightened […]
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Forest Products Journal | 1972 |
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Stem Characteristic Changes Affect Long-Term Planning for Timber Resources Utilization
Long-term planning for efficient timber resource utilization is a necessity in the forest products industry. Changes in the occurrence and severity of stem characteristics (e.g., sweep, crook, limbing features) over […]
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Forest Products Journal | 1983 |
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Stiffness of wood in fast-grown plantation softwoods the influence of microfibril angle
In fast-grown softwoods, there are very large changes in the longitudinal Young’s modulus of wood going outward from the pith. Typically, stiffness increases by a factor of 3 to 5 […]
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Forest Products Journal | 1994 |
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Strength and Stiffness of Clear Douglas-Fir Exposed to the Mount St. Helens Volcanic Eruption
The objective of this study was to determine thermal and blast effects of the Mount St. Helens volcanic eruption on the clear bending strength and stiffness of Douglas-fir. Analysis of […]
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Forest Products Journal | 1983 |
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Strength and Stiffness of Composite Floor Joists
The study showed that composite joists made with oriented flakeboard cores are superior in strength and stiffness to joists made with randomly oriented particleboard cores. Joists with oriented flakeboard cores […]
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Forest Products Journal | 1986 |
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Strength Characteristics of Two-Ply Vertically Laminated Beams of Southern Pine
Two-ply vertically laminated beams were made from southern pine No. 2 boards, which have defect characteristics similar to No. 3 dimension lumber. Fabrication variables were nail-laminating, mastic adhesive, and phenol-resorcinol […]
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Forest Products Journal | 1974 |
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Strength Loss in Small Clear Specimens of Beetle-Killed Southern Pine
Beetle-killed shortleaf and loblolly pine trees with known dates of foliage fade, as normal healthy trees, were harvested and processed into lumber. Small clear specimens were prepared from the lumber […]
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Forest Products Journal | 1979 |
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Strength of Fabricated Joists with Flanges of Minimally Machined Whole Or Half Stems of Lodgepole Pine
When loaded at 7 to 10 percent moisture content in edgewise flexure, over a 15-foot span, with load points 40 inches apart and symmetrical about the midlength of the joist, […]
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Forest Products Journal | 1985 |
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Strength of Nailed Wood Joints Subjected to Dynamic Load
Design criteria for lateral resistance of nailed joints are based on static load tests, whereas earthquake and wind produce dynamic loads on structures. This study compares lateral nail resistance determined […]
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Forest Products Journal | 1985 |
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Strength of Structural Lumber Under Combined Bending and Tension Loading
Full scale southern pine structural lumber was subjected to failing loads under combined tensile and bending stress. A pre-load tensile stress was applied and held constant while bending stresses were […]
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Forest Products Journal | 1970 |
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Strength of Untreated Douglas-Fir Foundation Piles After Some 70 Years’ Service
Twenty-three untreated Douglas-fir piles contained for approximately 70 years in fill and bay mud below the permanent water table near the San Francisco waterfront were investigated to determine their residual […]
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Forest Products Journal | 1982 |
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Strength of wood-lath filters after 11 years of service in a waste-water treatment plant
Laths of Douglas-fir, western hemlock, southern pine, and redwood containing both sapwood and heartwood were compared with the redwood heartwood laths presently used in trickle filters in a continuously operated […]
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Forest Products Journal | 1989 |
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Stress Wave Attenuation as An Indicator of Lumber Strength
Longitudinal stress waves were induced in Douglas-fir 1 by 4s selected to have various degrees of slope of grain. The amplitude of the stress waves was measured indirectly by a […]
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Forest Products Journal | 1977 |
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Stress-wave analysis of Douglas-fir logs for veneer properties
Visual characteristics of logs have not been good predictors of the strength and stiffness {modulus of elasticity {MOE)) of lumber and veneer products. However, several studies have shown that stress-wave […]
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Forest Products Journal | 2000 |
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Stress-wave analysis of Douglas-fir logs for veneer properties
Visual characteristics of logs have not been good predictors of the strength and stiffness {modulus of elasticity {MOE)) of lumber and veneer products. However, several studies have shown that stress-wave […]
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Forest Products Journal | 2000 |
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Stresses in Curved Glued-Laminated Timber Beams: Experimental Study
The distribution of stresses within the curved portion of double tapered and pitched glued-laminated timber beams was studied experimentally. Four small beams were built and tested after being instrumented with […]
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Forest Products Journal | 1971 |
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Structural lumber from dense stands of small-diameter Douglas-fir trees
Small-diameter trees growing in overstocked dense stands are often targeted for thinning to reduce fire hazard and improve forest health and ecosystem diversity. In the Pacific Northwest and Intermountain regions, […]
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Forest Products Journal | 2005 |
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Structural Lumber Laminated from 1/4-Inch Rotary-Peeled Southern Pine Veneer
This study is one of a series, begun in 1963, that has evaluated the properties of beams and lumber laminated from thick southern pine veneers. This series of experiments has […]
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Forest Products Journal | 1973 |
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Structural Particleboard Reinforced with Glass Fiber–Progress in Its Development
A method and prototype machine have been developed for producing structural member, such as 2 by 4’s, from wood particles on a continuous belt press with special provision for incorporating […]
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Forest Products Journal | 1975 |
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Structural performance of finger-jointed black spruce lumber with different joint configurations
In Eastern Canada, black spruce (Picea mariana (Mill.) B.S.P.) is used for producing engineered wood products. However, little information is available on the influence of finger-joint configuration on the structural […]
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Forest Products Journal | 2003 |
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Structural Property Estimation from Density Samples for Western Woods
To improve the reliability of structural property information on a continuing basis for engineering applications of today’s wood, a sampling system is needed which incorporates modern statistical techniques, yet in […]
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Forest Products Journal | 1965 |