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| Title | Publication | Publish Year |
|---|---|---|
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Near infrared spectroscopy in the forest products industry
Near infrared (NIR) spectroscopy shows great potential for rapid assessment of material and product variables during the manufacturing process. This month’s feature gives an overview of NIR spectroscopy and discusses […]
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Forest Products Journal | 2004 |
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New interlaminar shear test for structural wood composites
Interlaminar shear properties of structural wood composites are seldom evaluated. This is a deterrent to widespread introduction of these products as engineering materials into value-added/specialty markets. Current ASTM standards for […]
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Forest Products Journal | 1990 |
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New Tool for Measuring Adhesion of Coatings to Wood
During the past few years, many tests have been developed for measuring the adhesion of surface coatings to various metallic and non-metallic surfaces. In reviewing these tests, it was found […]
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Forest Products Journal | 1959 |
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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 evaluation for detection of honeycomb in the sawmill: an economic analysis
The technical feasibility of using ultrasonics-based nondestructive evaluation (NDE) for detecting non-visible defects such as honeycomb and closed surface checks has been established. The economic feasibility of using ultrasonics-based NDE […]
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Forest Products Journal | 1997 |
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Nondestructive evaluation of honeycomb and surface checks in red oak lumber
Honeycomb and closed surface checks are types of lumber drying defects that can go undetected and result in considerable losses during further processing of the lumber into high-quality products. This […]
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Forest Products Journal | 1995 |
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Nondestructive evaluation of wood
This article highlights the various uses of nondestructive evaluation technologies (NDE), including machine grading of structural lumber, use of ultrasonics in wood composite production, scanning systems for hardwood lumber defect […]
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Forest Products Journal | 1998 |
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Nondestructive evaluation techniques for assessing modulus of elasticity and stiffness of small-diameter logs
Many of the forests in the United States have large areas that contain trees of small diameter, mixed species, and undefined quality. Because these areas are overstocked, they are at […]
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Forest Products Journal | 2002 |
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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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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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On the Measurement of Fiber Orientation in Fiberboard
An attempt to measure the vertical component of fiber orientation in fiberboard is described. The experiment is based on the obvious reduction of the furnish fiber length which occurs by […]
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Forest Products Journal | 1983 |
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On the measurement of linear expansion of particleboard and medium density fiberboard
Some of the limitations of the standard linear expansion (LE) test were examined. On the basis of cyclic exposure testing of commercial particleboards and medium density fiberboards, recommendations were developed […]
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Forest Products Journal | 1989 |
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Optical Determination of Linear Expansion and Shrinkage of Wood
An optical comparator consisting of a modified microscope with two microscope tubes with eyepieces and objective lenses, a stage with, specimen support, and a dial gauge reading to 1/10,000 inch, […]
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Forest Products Journal | 1970 |
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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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Oxygen Utilization By Decay Fungi for the Evaluation of Wood Preservatives
The fungitoxic value of pentachlorophenol, coal tar creosote and CCA as wood preservatives was evaluated in the laboratory to compare the oxygen utilization method with the standard soil-block method. Three […]
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Forest Products Journal | 1975 |
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Parameter and quantile estimation for the distributions of failure strength of structural lumber
Estimating various characteristics, such as selected quantiles or the parameters, of a probability distribution of structural lumber failure strength is critical to quality control during manufacturing operations and for reliability-based […]
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Forest Products Journal | 1997 |
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Patterns of Resistance to a Pulsed Electric Current in Sound and Decayed Utility Poles
Patterns of electrical resistance measured at groundline were determined for 174 utility poles representing combinations of 7 species and 5 preservative treatments. Criteria developed from these patterns correctly indicated the […]
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Forest Products Journal | 1978 |
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Performance of Laminated Preservative-Treated Railroad Bridge Stringers
Twenty-eight laminated bridge stringers were prepared from southern yellow pine lumber treated with Wolman salts to a dry salt retention of 0.3 lb. per cu. ft. or with creosote to […]
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Forest Products Journal | 1955 |
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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 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 |
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Performance testing of furniture. Part 1. Underlying concepts
Performance tests may be defined as accelerated-use tests that predict the ability of a product to fulfill its intended function. As indicators of performance, these tests are powerful analytical tools […]
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Forest Products Journal | 1988 |
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Performance testing of furniture. Part II. A multipurpose universal structural performance test method
Ultimate realization of universal performance test methods for furniture is dependent upon the development of methods that meet the perceived needs of consumers and manufacturers alike. Such systems must provide […]
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Forest Products Journal | 1988 |