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| Title | Publication | Publish Year |
|---|---|---|
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Longitudinal Shear Strength of Timber Beams
The effect of size on longitudinal shear strength of timber beams is studied on the basis of data obtained in an extensive testing program. Test results verify that longitudinal shear […]
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Forest Products Journal | 1977 |
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Longitudinal Stress Waves for Lumber Stress Grading: Factors Affecting Applications: State of the Art
Longitudinal stress waves have the potential for widespread use in stress-grading lumber but more research is necessary to enhance its application. This state-of-the-art paper highlights factors that affect stress-wave transit […]
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Forest Products Journal | 1982 |
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Low Cost Measurement of Mechanical Joint Deformation
In search for a low cost measuring system that would allow automatic measurement of deformation for a large number of test specimens to study the long-term behavior of timber joints, […]
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Forest Products Journal | 1985 |
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Low-Density Boards from Wood Fiber and Plastic Resin Combinations
Wet-formed boards were made by mixing together methyl-cellulose, saponin, powdered phenolic resin, and wood fiber. Wet mats were dried 24 hours at 60?C and the resin cured at 160?C for […]
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Forest Products Journal | 1976 |
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Machine Stress Rated Lumber: Challenge to Design
Machine stress rating (MSR) principles of nondestructive testing improve the design potential of lumber through segregation by modulus of elasticity as well as by identification of allowable fiber stress levels. […]
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Forest Products Journal | 1970 |
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Major Routes to Achieve Stress-Graded Hardwoods
Hardwood lumber is used extensively in applications in which mechanical properties (strength and stiffness) are important to the consumer. Generally, the hardwoods are not stress graded. Four essential elements are […]
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Forest Products Journal | 1977 |
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Making Bonded Wire Electrical Resistance Strain Gages for Use on Wood
The materials and procedure for producing and calibrating a resistance type strain gage for wood is described. One mil constantan wire is soldered to 12 mil constantan wire to produce […]
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Forest Products Journal | 1967 |
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Manufacture and Use of Wood Particle Board
Wood particle board to be used as a substitute for lumber should have the following characteristics: 1) dimensional stability equal to wood, 2) even density through out, 3) good screw […]
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Forest Products Journal | 1956 |
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Manufacture of Hardboard Out of Wood Waste
The component fibers of hardboard are bonded to form an almost homogeneous mass, which when cut with a knife, leaves a sharp smooth edge. The bonding may result from chemical […]
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Forest Products Journal | 1952 |
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Mathematical details of the flow-grain predictor of grain orientation
In the late 1970s, a finite element model was being developed at Colorado State University to rationally predict the stress distribution in a piece of wood, containing a knot, loaded […]
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Forest Products Journal | 1994 |
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Maximizing Aspen Poplar Residue Utilization for Waferboard Production
Aspen poplar trees of 20-, 70-, 150-, and 360-mm butt diameter with or without bark, branches, and unmerchantable boles were used for the manufacture of waferboards. Panels 11.1 mm thick […]
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Forest Products Journal | 1986 |
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Maximum Strength Properties for Particleboard
Maximum strength properties of particleboard will be limited by the strength properties of the wood from which it is made–if resin distribution is 100 percent efficient. Mathematical means were developed […]
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Forest Products Journal | 1962 |
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Measured and Actual Strength Ratio of Utility Grade Studs
To determine how well strength ratio (SR) predicts stud strength, samples of Douglas-fir and Engelmann spruce studs of Utility grade were measured for their defects and tested destructively. Measured SR’s […]
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Forest Products Journal | 1979 |
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Measurement of Layer-Strength Distribution in Particleboard
A torsion-shear technique for analyzing the layer-strength profile of particleboard was developed as a simple alternative to the layer-density technique. The shear-strength profile through the thickness of particleboard can be […]
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Forest Products Journal | 1970 |
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Measuring Localized Slope of Grain By Electrical Capacitance
Electrical capacitance was found to be effective for measuring localized slope of grain in lumber. When slope-of-grain measurements were taken incrementally every 1/4 inch along and across the faces of […]
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Forest Products Journal | 1986 |
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Mechanical Characteristics of 21-Year-Old Weathered Nailed Joints
Nailed plywood-lumber joints were cut from the sidewalls of portable hog houses of single-skin type construction. The plywood houses had shown remarkable performance after at least 21 years of continuous […]
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Forest Products Journal | 1975 |
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Mechanical Properties of Acetylated Wood
Acetylation of wood produces increased dimensional stability and increases some strength, properties. Acetylated wood may be ideal for products where precision tolerances are required–this is one reason to study its […]
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Forest Products Journal | 1964 |
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Mechanical Properties of Conventionally Kiln-Dried and Pressure Steam-Dried Yellow-Poplar and Red Oak
Sections of conventionally kiln-dried and pressure steam-dried yellow-poplar sapwood and red oak heartwood were prepared for standard tests of static bending, shear parallel to the grain, and side hardness. Significant […]
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Forest Products Journal | 1983 |
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Mechanical Properties of Engelmann Spruce Grown in Colorado and Wyoming
Data are presented on the strength and related properties of Engelmann spruce grown in Colorado and Wyoming. The small clear specimens were obtained through the utilization of a technique sampling […]
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Forest Products Journal | 1969 |
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Mechanical properties of Guatemalan pine 2 by 4’s
The current industrial practice in Guatemala is to use the allowable mechanical property values of visually graded U.S. southern pine to design engineered structures because these values are not available […]
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Forest Products Journal | 1995 |
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Mechanical properties of lodgepole pine: 3-inch diameter stems
A large study entitled ?Gross Characteristics of Lodgepole Pine trees in North America? (9) has been previously published. The objective of the current research study reported herein was to evaluate […]
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Forest Products Journal | 1989 |
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Mechanical properties of lodgepole pine: 6- and 9-inch diameter stems
A large study entitled ?Gross characteristics of lodgepole pine trees in North America? (10), and a study entitled ?Mechanical properties of lodgepole pine: 3-inch diameter stems? (13) have been completed […]
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Forest Products Journal | 1989 |
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Mechanical properties of polymer-impregnated sugar maple
Untreated sugar maple and sugar maple vinyl wood polymer composite (WPC) samples were statically tested in tension, compression, and bending. WPC mechanical properties were increased compared to untreated wood and […]
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Forest Products Journal | 1990 |
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Mechanical Properties of Red Oak Related to Drying
Perpendicular to grain static tension tests at 0?, 45?, and 90? to the growth rings, and compression tests at 0? to the growth rings, were carried out at 80?, 130?, […]
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Forest Products Journal | 1957 |
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Mechanical Properties of Small Laminated Beams Utilizing Slicewood
The mechanical properties of small laminated beams made from slicewood were compared with sawed controls. Six plain-sawn, green yellow-poplar boards 48 inches by 1-3/4 inches thick by 9 inches wide […]
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Forest Products Journal | 1967 |