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| Title | Publication | Publish Year |
|---|---|---|
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Selecting Precision Levels for Measurements
A simple, approximate method is presented for comparing alternative precision levels for measurements. Savings in time or cost can result from choosing an appropriate level of precision. An example, computing […]
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Forest Products Journal | 1982 |
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Selection Efficiencies of Nondestructive Strength Tests
The research explores the power of vibrational measurement of elastic modulus tests to identify wood of acceptable strength after ensuring rejection of wood of unacceptable strength. It proposes a measure […]
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Forest Products Journal | 1962 |
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Selection of Low-Strength Pieces By Nondestructive Testing: Douglas-Fir and Hem-Fir 2 By 4’s in Flexure
Several nondestructive methods for predicting modulus of rupture (MOR) were applied to four randomly selected samples of 2- by 4-inch dimension lumber. Each sample included 100 pieces of one grade […]
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Forest Products Journal | 1977 |
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Semi-destructive method for in-situ evaluation of compressive strength of wood structural members
A method of testing the compressive strength of wood using small-diameter cores was developed. A special core drill was used to cut 5-mm-diameter cores from wood members. Cores were drilled […]
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Forest Products Journal | 2003 |
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Sensitivity of the Pick Test for Field Detection of Early Wood Decay
Although the “pick test” is commonly used to detect wood decay in the field, it has not been known how advanced decay must be before it can be detected by […]
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Forest Products Journal | 1983 |
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Seriological detection of wood decay fungi
Polyclonal antisera produced to Poria placenta (Fr.) Cooke were used in two tests to qualitatively assay for the fungus. Fungal hyphae were fixed to slides and fluorescent antibody (FA) techniques […]
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Forest Products Journal | 1988 |
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Several examination on the static bending tests methods of wood using todomatsu (Japanese fir)
We examined the methods of measuring the bending properties of wood using todomatsu (Abies sachalinensis Fr. Schmidt) by elementary bending theory. Three- and four-point bending tests were conducted under various […]
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Forest Products Journal | 2003 |
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Shear properties tests of oriented strandboard panels
Quality-control programs of panel products largely ignore shear properties due to the difficulties involved in testing them. However, with increasing demand and wide-spread applications of oriented strandboard as a structural […]
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Forest Products Journal | 1999 |
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Shear Strength of Douglas-Fir Laminated-Veneer Lumber
A sample of sixty 2 x 8-inch Douglas-fir laminated-veneer lumber (LVL) specimens was obtained from a commercial manufacturer. The material was divided into matched specimens and from each sample block-shear […]
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Forest Products Journal | 1975 |
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Shear Stresses Resulting from Swelling in Laminated Assemblies
The technique developed here makes it possible to study swelling or shrinkage forces which are restrained in shear. It could be used in studying the behavior of various types of […]
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Forest Products Journal | 1968 |
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Shrinkage and the Development of Defects in Veneer Drying
Tangential shrinkage (green to ovendry) measurements were made on 144 heartwood specimens from two different yellow poplar (Liriodendron tulipifera L.) logs. The specimens were 3 inches wide (tangential direction) by […]
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Forest Products Journal | 1954 |
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Simplification on the Experimental Method for Determining Plate Shear Modulus of Plywood and Particleboard
Experimental evidence demonstrates that accurate values of edgewise shear modulus (G) can be obtained by measuring the average deflection at the extremities of the diagonals of plywood and particleboard plates. […]
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Forest Products Journal | 1976 |
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Simplified Test of Internal Bond in Particleboard
The standard ASTM test of internal bond was compared to a modified ASTM test where wood blocks were substituted for metal, and with a push-out test. Specimens for the latter […]
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Forest Products Journal | 1965 |
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Sink-Float Test to Determine Treatability of Douglas-Fir
To conduct the sink-float test, a plug 1/2 inch in diameter by 1/2 inch long is cut from the heartwood of each piece of lumber to be tested. The plugs […]
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Forest Products Journal | 1964 |
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Six Leading-Edge Deckboard Designs for Nailed Warehouse Pallets
Six variations in the design of the leading-edge deck-boards of nailed, non-reversible, double-faced, flush, four-way, 48 inch by 40 inch, permanent warehouse pallets were tested for their influence on the […]
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Forest Products Journal | 1973 |
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Slicing Apparatus Aids in Determination of Layer-Density of Particleboard
An apparatus is described which aids in determination of layer-density of particleboard samples by removing successive slices from the sample. Weight and thickness measurements made before and after each slice […]
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Forest Products Journal | 1978 |
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Slope-Of-Grain Indicator
A noncontact slope-of-grain indicator that should be suitable for continuous inspection of lumber has been developed and is being patented. The dielectric constant parallel to the grain in most woods […]
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Forest Products Journal | 1973 |
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Some Non-Destructive Tests for Wood
Non-destructive methods of testing wood were reviewed. Non-destructive testing was defined as the evaluation of materials without damage. One of the first and most limited tests of this type to […]
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Forest Products Journal | 1954 |
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Some Simple Testing Methods for the User of Wood Finishing Materials
The article outlines the laboratory equipment required for testing wood finishing materials on a small scale. The author suggests testing for color, uniform viscosity, specific gravity (by means of a […]
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Forest Products Journal | 1948 |
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Spiral Grain Patterns from Increment Cores
Laboratory work on lodgepole and ponderosa pine and field tests on lodgepole pine, western redcedar, and western larch provide a new method for measuring grain angle and assaying the presence […]
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Forest Products Journal | 1968 |
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Stacking Method for Long-Term Concentrated Load Testing of Floor Panels
Few data have been published on long-term deflection of full-size floor panels, partly because of the considerable space required for testing even a few sections. A stacking method is proposed […]
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Forest Products Journal | 1980 |
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State-Of-The-Art: Current Statistical Methods for Estimating Lumber Properties By Proofloading
This paper explores from a statistical perspective the nature of current proofloading research involving lumber. The task of determining performance of the many grades, sizes, and species of lumber by […]
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Forest Products Journal | 1980 |
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Static Bending Properties of Structural Wood-Base Panels: Large-Panel Versus Small-Specimen Tests
The use of small-specimen bending tests on some particle panel products may be inappropriate because the relative size of the specimen and wood elements in the panel (wafers, flakes, strands) […]
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Forest Products Journal | 1984 |
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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 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 |