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| Title | Publication | Publish Year |
|---|---|---|
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New Method of Calculating Internal Stresses in Wood
A method for calculating the perpendicular-to-grain normal and shear stresses at any point in the cross section of a board is described. The method can be applied to hoards at […]
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Forest Products Journal | 1959 |
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New Monomers Used in Making Wood-Plastics
Basswood, eastern white pine, and sugar maple samples were impregnated with three different monomers, using various treatment conditions, and cured by the catalyst-heat technique. The basic monomers were t-butyl styrene, […]
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Forest Products Journal | 1969 |
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New Torsion Test for Particleboard
A technique has been developed for testing the internal strength of particleboard in situ by a simple torsion test. A good correlation with the conventional ASTM test has been obtained. […]
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Forest Products Journal | 1974 |
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Nondestructive Parameters of Lodgepole Pine Dimension Lumber in Bending
Lodgepole pine dimension lumber was collected from seven Colorado and Wyoming sawmills. The sampling included a total of 277 specimens in four visual stress grades. Two testing techniques, one in […]
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Forest Products Journal | 1972 |
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Nondestructive Screening of Hardwood Specialty Blanks
The potential of nondestructive testing techniques for screening hardwood specialty blanks was evaluated. Several nondestructive tests were performed on four types cf hardwood specialty blanks: striking tool handles, lifting tool […]
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Forest Products Journal | 1984 |
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Nondestructive Testing for Forest Products
Transverse and longitudinal forced vibrations at the fundamental resonant frequencies were used to determine the dynamic moduli of elasticity in 2 by 2 by 30 inch wood samples at moisture […]
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Forest Products Journal | 1950 |
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Nondestructive Testing of Joists By a Vibrational Technique
The main purpose of this study was to determine the effectiveness and accuracy of a vibrational nondestructive test in segregating joists into different strength levels. The joists used in this […]
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Forest Products Journal | 1968 |
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Nonlinear Mechanical Behavior of Wood
Creep and recovery of hard maple caused by longitudinal tension stress were examined over time intervals of 1,000 and 100 minutes, respectively, for preselected values of the independent variables in […]
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Forest Products Journal | 1968 |
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Objective and Needs for Nondestructive Testing of Wood
Nondestructive testing of wood can have a real influence on the entire forest products industry, and the market it serves. It is necessary to have known strength values of lumber […]
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Forest Products Journal | 1964 |
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Occurrence and Probable Cause of Heartwood Degradation in Commercial Species of Populus
Bacteria are commonly associated with heartwood of aspen, balsam, and cottonwood. The specific gravity of the heartwood has been reduced, and it appears highly probable that this has resulted from […]
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Forest Products Journal | 1952 |
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On the Mechanics of Fracture in Wood
Approximately 740 board feet of kiln-dried western white pine (Pinus monticola) was selected for the experiment. The experimental procedure consisted of finding a suitable specimen design for measuring the opening […]
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Forest Products Journal | 1964 |
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Optimum Rake Angle Related to Selected Strength Properties of Wood
A technique for approximating rake angle from a relation between rake angle and cutting coefficient is described, The cutting coefficient of friction, calculated from orthogonal cutting tool force components, was […]
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Forest Products Journal | 1977 |
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Orthotropic Strains in Compression Parallel to Grain Tests
Strains were measured in the radial; tangential, and longitudinal directions during the loading of small wood columns in compression parallel to the grain. Eight wood species were included in the […]
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Forest Products Journal | 1985 |
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Out-Of-Plane Strength and Stiffness of Dowel Joints
The design of furniture as an engineered structure requires methods for systematically designing the joints. Of particular concern are dowel joints loaded in flatwise bending, since neither their strength nor […]
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Forest Products Journal | 1979 |
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Pallet Rigidity, A Major Indicator of Pallet Durability
The rigidity of wooden pallets is influenced by their design, style, type, size, and weight, the quality of the pallet materials, the fasteners used for pallet assembly, and the interaction […]
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Forest Products Journal | 1985 |
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Parallel-Laminated Veneer: Processing and Performance Research Review
The use of parallel-laminated veneer (PLV) for critical structural elements has proven commercially feasible for more than a decade. The uniformity of this material’s mechanical properties has made it popular […]
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Forest Products Journal | 1983 |
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Particleboard from Silage Sycamore – Laboratory Production and Testing
Five- to 6-year-old sycamore saplings, with basal diameters of 3 to 6 inches and heights of 20 to 30 feet were used, with bark on but without leaves, to make […]
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Forest Products Journal | 1973 |
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Particleboard from Young-Growth White Fir Logging Residues
Young-growth white fir logging residues (branches and tops) were segregated into branch-diameter classes and converted by various methods into core- and face-layer furnishes. Three-layer urea formaldehyde particleboards were made from […]
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Forest Products Journal | 1978 |
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Particleboard Strength as Affected By Unequal Resin Distribution on Different Particle Fractions
Varying resin distributions within various particle size classifications (screen fractions) of particleboard furnish affected IB, MOR, and MOE. Two studies were made. First, a commercial particleboard furnish was screened into […]
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Forest Products Journal | 1978 |
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Partridge Wood: A Novelty Wood
The rot caused by Stereum frustulosum (Pers.) Fr. in oak produces a condition called “Partridge wood.” The wood takes on a dark brown color, then disintegrates, leaving spindle-shaped pockets or […]
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Forest Products Journal | 1970 |
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Penetrability and Strength of White Spruce After Ponding
Thirty-six bolts obtained from four small white spruce trees (Picea glauca [Moench] Voss) were ponded in a natural lake in Petawawa, Ontario, in an investigation to establish the optimal ponding […]
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Forest Products Journal | 1972 |
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Performance of Plywood and Composite Panels Under Concentrated and Impact Loads
The American Plywood Association program related to impact and concentrated load performance of plywood and veneer particleboard composite panels had three stages: defining the minimum load limits and stiffness levels […]
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Forest Products Journal | 1975 |
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Performance of Structural Wood Members Exposed to Fire
A method which is general in respect to member size, configuration and exposure conditions was developed to predict behavior of structural wood members both during and following fire exposure. The […]
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Forest Products Journal | 1975 |
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Performance of Trussed Rafters
Three types of metal plate fasteners and plywood gusset plates of common design were used in fabrication of trussed rafters. The trusses were of a W-type with a span of […]
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Forest Products Journal | 1964 |
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Performance Requirements for Exterior Laminated Veneer Lumber
Laminated veneer lumber (LVL) has been commercially manufactured for several years. Most service applications have been for interior structural uses. Current growth is encompassing both exterior and interior uses. Exterior […]
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Forest Products Journal | 1986 |