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| Title | Publication | Publish Year |
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Strength of Second-Growth Douglas-Fir in Tension Parallel to the Grain
Results of this study produced two averages for tensile strength of second-growth Douglas-fir, one for material at 12 percent moisture content and the other for unseasoned material. Based upon results […]
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Forest Products Journal | 1959 |
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Strength of Selected Methods for Joining Low-Density Fiberboard
Fiberboard panels of 35 and 42 pounds per cubic foot density were made from pressure-refined fiber from total tree hardwood chips. Face and edge withdrawal tests of wood screws and […]
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Forest Products Journal | 1978 |
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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 Western Hemlock Compared for Two Areas
A statistical analysis was made to determine if differences occurred in basic strength properties of Tsuga heterophylla randomly sampled from Clatsop County and that part of Mt. Hood National Forest […]
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Forest Products Journal | 1967 |
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Strength of Wood Columns
The load-carrying capacity or buckling load of columns was studied by testing 20 eastern spruce columns of rectangular cross-section and with varying slenderness ratios. The specimens were clear, free from […]
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Forest Products Journal | 1967 |
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Strength Properties of Paper-Covered Veneer from True Fir and White- Speck Douglas-Fir
The types of paper-covered veneers investigated in this study included 1/8-inch Douglas-fir containing light, medium, and heavy amounts of white speck or honeycomb, 3/16-inch Douglas-fir with a medium amount of […]
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Forest Products Journal | 1955 |
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Strength Properties of Plantation-Grown Slash Pine
Extensive plantations of slash pine in eastern Texas and southwestern Louisiana are now of merchantable size. Since these plantings represent extensions of the natural range of this species, questions have […]
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Forest Products Journal | 1956 |
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Strength Properties of Tension Wood and Typical Wood in a Leaning Eastern Cottonwood Tree
Shear parallel to the grain and tension perpendicular to the grain of tension wood and typical wood in eastern cotton wood (Populus deltoides Bartr.) were analyzed. The adhesive bonding characteristics […]
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Forest Products Journal | 1958 |
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Strength Reductions in Particleboard Caused By Fungi
Laboratory tests to determine, respectively, the effect of fungi and watersoaking on the IB strengths and static bending properties (MOR and MOE) of a variety of commercially produced phenol- and […]
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Forest Products Journal | 1978 |
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Strength Retention in Wood Decayed in Small Weight Losses
This study was designed to examine the relationship between strength retention and weight loss for a number of wood species both domestic and tropical. The fungi used were Poria monticola, […]
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Forest Products Journal | 1958 |
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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 Speed and MOE of Sweetgum Ranging from 150 to 15 Percent MC
Stress-wave techniques, considered as alternate means to machine grade lumber, have been studied to some extent with dry lumber but not with green lumber. A set of clear sweetgum sapwood […]
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Forest Products Journal | 1975 |
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Stress-Rupture of Particleboard in Interlaminar Shear
Specimens of three commercial particleboards were loaded in interlaminar shear at seven different stress levels from 90 to 60 percent of the static strength of controls. The regression equation relating […]
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Forest Products Journal | 1978 |
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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 Flakeboard from Short-Rotation, Intensively Cultured Hybrid Populus Clones
Raw material from 4- to 6-year-old hybrid popular, grown under short-rotation, intensive culture (SRIC), was used to fabricate structural flakeboards. The physical and mechanical properties of these flakeboards were studied […]
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Forest Products Journal | 1980 |
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Structural Flakeboard Stiffness–Relation to Deflection Criteria and Economic Performance
Homogeneous and oriented-face, random-core, three-layer flakeboard stiffness is compared to that of softwood plywood. Flakeboard with MOE ranging from 500,000 to 1,500,000 psi were compared to plywood having an MOE […]
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Forest Products Journal | 1977 |
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Structural Particleboard for Webs of Composite Beams?
The primary mechanics function of webs of composite beams is to resist shear stresses and deformation. Commercially, a composite beam’s application is often limited by the shear strength of its […]
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Forest Products Journal | 1975 |
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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 |
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Super-Strength Beams Laminated from Rotary-Cut Southern Pine Veneer
Very strong beams were made by arranging 42 laminae of 1/6-inch rotary-cut southern pine veneer so that the stiffest veneers were on the tension and compression flanges and the most […]
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Forest Products Journal | 1967 |
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Technique for Isolating Flakes from the Pressed Mat
A technique for removing flakes from the pressed mat using thin Teflon sheets was developed. Investigation showed that the use of Teflon does not disturb the mechanisms of board manufacture. […]
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Forest Products Journal | 1984 |
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Tensile Strength of AITC 302-24 Grade Tension Laminations
Distributional characteristics of tensile strength for laminating grades of lumber in the United States are necessary for the reliability based design of glued laminated timbers (glulam). The most important of […]
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Forest Products Journal | 1986 |
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Tensile Strength of Douglas-Fir Laminated-Veneer Lumber
Second-growth, 80-year-age-class coastal Douglas-fir No. 2 sawlogs were rotary peeled and clipped into lengths of 1/4-inch-thick veneer. All of the recovered material was dried, trimmed, and continuously assembled by butt-joining […]
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Forest Products Journal | 1974 |
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Tensile Strength of One-, Two-, and Three-Ply Glulam Members of 2 By 6 Douglas-Fir
A comparison of the tensile strength of single-ply with two- and three-ply glulam members revealed the expected increase in strength of two-ply members as compared to the single-ply. No further […]
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Forest Products Journal | 1981 |
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Tensile Strength of Redwood Dimension Lumber I. Relation to Grade and Working Stress
The ultimate tensile strength parallel to the grain of redwood dimension lumber was determined for 519 pieces. The lumber represented both structural and nonstructural material from Clear, Select, and Construction […]
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Forest Products Journal | 1971 |
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Tensile Strength of Redwood Dimension Lumber. II. Prediction of Strength Values
This paper presents results of statistical analyses relating tensile strength of redwood dimension lumber of both structural and nonstructural classification from Clear, Select, and Construction grades in 2 by 6 […]
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Forest Products Journal | 1971 |