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| Title | Publication | Publish Year |
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Physical, mechanical, and drying properties associated with bacterial wetwood in red oaks
Physical, mechanical, and drying properties associated with bacterial wetwood in red oak trees in Mississippi and South Carolina were evaluated to identify possible predictors of bacterial wetwood, a major cause […]
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Forest Products Journal | 2001 |
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Pilot study to examine use of transverse vibration nondestructive evaluation for assessing floor systems
Evaluation of existing timber structures requires procedures to evaluate in situ structural members and components. This report evaluates the transverse vibration response of laboratory-built floor systems with new and salvaged […]
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Forest Products Journal | 2002 |
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Portable E-Tester for Selecting Structural Component Lumber
Because the stiffness properties in any given grade of structural lumber are based on the average stiffness of that grade, the modulus of elasticity (MOE) E-Tester described in this article […]
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Forest Products Journal | 1981 |
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Possibilities of the Glueline-Cleavage Test When Applied to Hardboard
Author rates tests for determining the quality of glue bonds between wood as follows: block shear 15, tension shear 16, tension normal 15, cross-lapped 16, glueline cleavage 8, percent wood […]
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Forest Products Journal | 1955 |
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Predicting concentrated static load performance of oriented strandboard
For floor and roof sheathing applications of oriented strandboard (OSB), resistance to concentrated static load (CSL) is a critical property in assessing strength performance. The purpose of this project was […]
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Forest Products Journal | 2005 |
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Predicting localized MOE and tensile strength in solid and finger-jointed laminating lumber using longitudinal stress waves
A stress wave technique was examined as a means of predicting localized (2-ft.) modulus of elasticity (MOE) and tensile strength for several grades and species groupings of solid and finger-jointed […]
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Forest Products Journal | 1990 |
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Predicting the Bending Strength of Ladder Rail Stock
Ladders are a high liability product. Nondestructive testing of ladder rail strength could be used to sort the rails into different quality groups for improved reliability. Two hundred pieces of […]
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Forest Products Journal | 1983 |
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Prediction of Failure of Finger Joints Using Acoustic Emissions
The article describes how a new nondestructive testing technique, called acoustic emissions, can be used to predict the failure of finger joints in 2- by 6-inch Douglas-fir lamination stock. While […]
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Forest Products Journal | 1972 |
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Preliminary Report on a Proposed New Method of Estimating the Service Life of Exterior Grade Plywood
A test is being made of a proposed new method of estimating the service life of plywood. It is based upon the rate of reduction in strength of a bond […]
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Forest Products Journal | 1956 |
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Preliminary Report on Test Method for Evaluating Gluability of Hardboard
A method of determining the gluability of hardboards is considered essential as this material becomes more widely used in the manufacture of secondary products. A tentative method, involving a gluability […]
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Forest Products Journal | 1953 |
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Preliminary Study of a Notched Compression Shear Test Specimen
A notched solid wood specimen for determining compression shear parallel to grain which is simple to fabricate and test without expensive shear tools and testing machinery was designed and used […]
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Forest Products Journal | 1970 |
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Preliminary Study of Proportional Limit as a Predictor of Ultimate Strength in Bending
Machine grading of structural lumber in the United States combines visual indicators and modulus of elasticity (MOE), determined from load-deflection measurements made by machine, as predictors of strength. The machine-based […]
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Forest Products Journal | 1980 |
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Preparation and Testing of Microbending Specimens
Very small bending specimens have proven to be useful in evaluating certain aspects of wood strength in wood quality studies and in products where sufficient material is unavailable for standard-size […]
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Forest Products Journal | 1986 |
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Printing Grid Patterns on Green Wood
A technique is described to print grid patterns on green wood. A two-part epoxy was applied to a smooth surface. Kodak Photosensitive Resist was then applied on which a grid […]
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Forest Products Journal | 1970 |
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Problems in the Determination of Cured, Phenol-Formaldehyde Resins in Paper and Wood
Analysis for cured phenol-formaldehyde resin in treated paper usually involves removing the cellulose with 72 percent sulfuric acid leaving the lignin and resin; this is followed by treatment with sodium […]
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Forest Products Journal | 1975 |
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Procedure for Evaluating the Effect of Heartwood Extractives on Decay Resistance
A test procedure for evaluating the fungistatic properties of wood extractives is introduced. The test employs the use of ground wood for substrate and the protective effect is measured by […]
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Forest Products Journal | 1980 |
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Procedure for measuring formaldehyde liberation from formaldehyde-based resins
A method is described for measuring formaldehyde released as vapor from formaldehyde-containing solids (e.g. cured urea-formaldehyde resins or model compounds) rather than formaldehyde released from solids slurried in aqueous systems. […]
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Forest Products Journal | 1987 |
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Progress in 1960 . . . Glues and Gluing Processes
Progress report of FPRS Division of Glues and Gluing Processes including symposium on adhesives at U.S. Forest Products Laboratory; statistics on production of plywood; phenol-resin glues in plywood; other plywood […]
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Forest Products Journal | 1961 |
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Proofloading of Finger-Joints for Glulam Timber
The need for positive assurance that the strength of all end-joints in the critical outer tension zone of beams is in balance with the strength of the wood has been […]
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Forest Products Journal | 1981 |
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Proposed New Specimen Size for Testing Plywood in Compression
Large compression specimens (7.5-inch wide by 15-inch long), recommended in ASTM D 3501-76, were used initially to obtain compressive strength and modulus of elasticity (MOE) of southern yellow pine plywood. […]
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Forest Products Journal | 1980 |
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Prototype Testing of Timber Structures
With the increasing use of prefabricated timber components in the United Kingdom, structural testing of prototype units has been developed as a valid method of assessing new designs. Information obtained […]
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Forest Products Journal | 1970 |
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Punch-Shear Test for Evaluating Properties of Hardboard
Nailhead pull-through tests using three types of 6d nails, and similar tests using a punch tool, were made on samples of embossed hardboard siding. Half of the samples were soaked […]
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Forest Products Journal | 1975 |
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Quality Control of Veneer and Plywood Manufacture
General principles of quality control must be adapted to the conditions in a particular industry. Present methods of quality control draw heavily on mathematical statistics. The quality control department in […]
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Forest Products Journal | 1953 |
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Quality of Near Longitudinal Wood Surfaces Formed By Inclined Cutting
An 11-l/2-inch diameter disk with a clearance angle of 3? was used to evaluate the effect of the range of several variables on the surface quality obtained by inclined and […]
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Forest Products Journal | 1966 |
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Quantification of compression failure propagation in wood using digital image pattern recognition
Initiation and propagation of compression failures in the wood of southern yellow pine were investigated at the microscopic level. Small site specimens (1 by 1 by 4 mm) were prepared […]
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Forest Products Journal | 1996 |