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| Title | Publication | Publish Year |
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Mechanical stress grading of dahurian larch structural lumber
The objective of this study was to test a method under development for signing allowable properties to foreign species graded by American Lumber Standard machine-stress-rated (MSR) rules. The method vas […]
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Forest Products Journal | 1996 |
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Mechanical Tests of Full-Sized Polymer Impregnated Timbers
Full-sized members (8 ft. long) were impregnated with methyl methacrylate (MMA). Lodgepole pine 2 by 6’s were tested in static bending and tension. Ponderosa pine 4 by 6’s were tested […]
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Forest Products Journal | 1984 |
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Metal to Wood Bonding
This is a general discussion of Plymetal and its manufacture, i.e. its physical and structural properties, commercial applications, general adhesive requirements, methods of gluing, and specific adhesives for bonding metal […]
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Forest Products Journal | 1947 |
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Method of Making Cellular Materials from Red Oak Bark
A laboratory process for forming a panel from milled hard wood bark and a foamed polyvinyl acetate adhesive is described. The aim of the project was to produce a material […]
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Forest Products Journal | 1977 |
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Methodology to Evaluate Racking Resistance of Nailed Walls
A methodology is presented for calculating racking performance of sheathed wood-stud walls. the procedure presented, each sheet of sheathing is replaced by a pair of diagonal springs; the stiffness of […]
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Forest Products Journal | 1982 |
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Methods of Measuring Die-Cutting Shear Strength of Hardboard
The die-cutting shear strength of 1/8-, 1/4-, and 3/8-inch-thick standard and tempered hardboards were evaluated by both the Johnson double-shear tool and the ASTM D 732-46 shear test for plastics. […]
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Forest Products Journal | 1972 |
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Methods of Nailing and Adhesive Consistency Affect the Strength of Nailed-Glued Construction Joints
The shear strengths of plywood-to-lumber joints, nail-glued with two elastomeric construction adhesives of high quality, were affected to varying degrees by methods of nailing, depending upon consistencies of the adhesives. […]
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Forest Products Journal | 1974 |
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Micro Lam: Structural Laminated Veneer Lumber
MICRO-LAM is a commercially manufactured structural material made by continuously laminating rotary-peeled Douglas-fir veneer. Strength and stiffness properties of this material are outlined, and various structural applications as truss chords, […]
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Forest Products Journal | 1978 |
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Microfibril Angle as a Parameter in Timber Quality Assessment
Wood fiber can be considered a two-phase material consisting of cellulose microfibrils embedded in an amorphous matrix. Theoretical work based on this concept shows that the microfibril angle of the […]
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Forest Products Journal | 1969 |
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Microscopical Rating of Decay in Sitka Spruce and Its Relation to Toughness
The study was made to determine whether reduction in toughness caused by wood-rotting fungi might be estimated in relationship to microscopical changes in the wood. Microscopical features were observed in […]
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Forest Products Journal | 1957 |
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Microshrinkage During the Initial Stages of Drying
The author describes the development and use of three mathematical models to predict the amount of unit board shrinkage that would result from simple distribution of moisture, modulus of elasticity, […]
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Forest Products Journal | 1963 |
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Minnesota Shear Test Reproducibility and Correlation with Internal Bond
The rectangular (MSTR) and parallelogram (MSTP) test specimen configurations give different average shear strengths for an individual panel. This may result from the nonuniformity of the shear-stress distribution in MSTR […]
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Forest Products Journal | 1984 |
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Modeling Joints Made with Light-Gage Metal Connector Plates
Precise analysis of light-gage metal plate connected roof and floor trusses requires sophisticated mathematical techniques, which in turn, require detailed input for all structure properties including the mechanical properties of […]
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Forest Products Journal | 1979 |
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Modeling the Stress-Compression Relationships in Wood in Compression Perpendicular to Grain
Current allowable design properties for compression perpendicular to the grain (C-perp) appear to be unduly conservative. This report describes a procedure for attaining more equitable C-perp design limits by the […]
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Forest Products Journal | 1979 |
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Modern Development in Swedish Fiberboards
In the search for a cheaper raw material in the Swedish fiberboard industry, changes from 100 percent stone groundwood to additions of 20 to 30 percent refiner groundwood from sawdust […]
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Forest Products Journal | 1965 |
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Modified Powdered Spent Sulfite Liquor as Binder for Exterior Waferboard
Spent sulfite liquor, modified with a strong moneral acid, can be used as a resin binder for exterior grade waferboard. Medium density, 3/8-inch, poplar waferboards bonded with 4 to 5 […]
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Forest Products Journal | 1974 |
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Modulus of Elasticity and Shear Deflection of Walnut-Veneered Particleboard Composite Beams in Flexure
A total of 150 specimens of three thicknesses (3/8, 1/2, and 3/4 inch) of particleboard, 3/4-inch walnut, and 1/36, 1/8, and 3/16-inch veneered-particleboard composites were tested under flexure with span-to-depth […]
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Forest Products Journal | 1972 |
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Modulus of Elasticity Distribution of Loblolly Pine Veneer as Related to Location Within the Stem and Specific Gravity
Composite structural members using veneer faces over particleboard cores have the potential of increasing the volume of structural products derived from forest stands. The modulus of elasticity (MOE) of the […]
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Forest Products Journal | 1976 |
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Modulus of Rupture and Dynamic and Static Modulus of Elasticity of Eastern Cottonwood Two-By-Fours
MOR and apparent static MOE were calculated and recorded with the corresponding dynamic MOE values. The three variables were analyzed by a least squares regression procedure. A high correlation was […]
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Forest Products Journal | 1979 |
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Moisture Content Changes and Creep of Wood
Beech beams 2 by 2 mm in cross section were supported over a span of 60 mm and loaded at the center of the span. The beams were exposed at […]
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Forest Products Journal | 1964 |
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Moisture Content Effect on In-Plane Shear Moduli of Sheathing Grade Flakeboard and Plywood
This study compared the change in shear moduli of sheathing grade flakeboard and plywood over a broad range of RHs (36 percent to 87 percent) that might be associated with […]
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Forest Products Journal | 1978 |
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Moisture Leveling in Veneer By Microwaves and Hot Air
A microwave hot air drying system was developed to selectively dry and level the moisture content in veneer of Douglas-fir, western larch, western hemlock, white fir, Engelmann spruce, ponderosa pine, […]
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Forest Products Journal | 1970 |
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Molding Dry Ligno-Cellulosic Materials Above 325 Degrees C.
It was found that dry, that is, water free, sheets of various types hardboard softened to such an extent at elevated temperatures that they were easily bent and molded at […]
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Forest Products Journal | 1966 |
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Monte-Carlo simulation methods for engineered wood systems
Monte-Carlo simulation is a useful modeling technique for characterizing the reliability of structural components and systems. This paper provides an overview of methods and software for fitting probability distributions and […]
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Forest Products Journal | 1995 |
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Needleboards–An Exploratory Study
Medium-density hot-pressed boards were prepared from slash pine needles that had been: 1) flattened, 2) benzene-soaked, 3) flattened and then benzene-soaked, 4) mercerized, or 5) given no treatment. None of […]
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Forest Products Journal | 1974 |