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| Title | Publication | Publish Year |
|---|---|---|
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Improved Load-Carrying Capacity of Wood in Transverse Compression
The presented data show that the contribution of the edge effect to load-carrying capacity in partial-plate compression is significant. With large total edge-area ratios the edge effect contribution, based on […]
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Forest Products Journal | 1969 |
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Improved Microtechnique for Wood Tensile Strength and Related Properties
A discussion is presented of the techniques to prepare microtensile test specimens, which shows that a 2.5 by 100 mm rectangular section 100 microns thick is an improvement over the […]
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Forest Products Journal | 1965 |
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Improved Particleboard Through Better Resin Efficiency
Dried, screened, Douglas-fir flakes were obtained from a flakeboard manufacturer and experimental boards were prepared following commercial practice. Variables investigated were: method of spraying (air-spray, airless spray, and sonic spray); […]
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Forest Products Journal | 1965 |
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Improving End-To-End Grain Butt Joint Gluing of White Pine
By pretreating and heating the mating surfaces of butt joints before gluing, tensile strengths approaching the strength of clear eastern white pine (Pinus strobus L.) were achieved. Resorcinol, polyvinyl, urea, […]
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Forest Products Journal | 1970 |
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Improving Mill Waferboard Properties By X-Ray-Densitometer Evaluation Methods
Vertical density profiles for commercial waferboards were determined by a X-ray densitometer method. Information regarding the non-homogeneous density distribution was reported back to the mill and subsequent changes in pressing […]
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Forest Products Journal | 1978 |
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Improving Scarf Joint Strength
A reservoir-type bonding technique, which was developed for improving end-grain to end-grain butt-joint gluing of wood with epoxy resins, has been applied successfully to the gluing of scarf joints. It […]
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Forest Products Journal | 1973 |
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Improving the Properties of Commercial Phenolic-Bonded, Structural-Type Particleboards By Oil Tempering
The purpose of this study was to determine if properties of phenolic-bonded particleboards could be improved by oil tempering. Three phenolic-bonded particleboard. of 37, 44, and 51 pcf densities were […]
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Forest Products Journal | 1974 |
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In-Grade Testing–Problem Analysis
The present method of deriving allowable stresses has recently been subjected to serious scrutiny and been found to be deficient in several respects. An alternative method of obtaining allowable stresses […]
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Forest Products Journal | 1978 |
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Increased Utilization of Tropical Hardwoods Through Species- Independent Structural Grading
Models of stress grading processes were applied to three Brazilian hardwoods, banak (Virola spp.), tachi (Tachigalia paniculatum), and pequia (Caryocar villosum) in order to identify whether the product would be […]
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Forest Products Journal | 1979 |
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Increases in Deflection and Stresses Caused By Ponding of Water on Roofs
An approximate solution is derived for the deflections bending stresses, and increase in load on beams and decking due to ponding of water or other fluids on roofs or floors. […]
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Forest Products Journal | 1964 |
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Influence of ACA and CCA Waterborne Preservatives on the Properties of Aspen Waferboard
Aspen waferboards of 41 pcf nominal density were manufactured from untreated aspen wafers and wafers treated with 0.2 and 0.4 pcf ammoniacal copper arsenite (ACA) and chromated copper arsenate (CCA) […]
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Forest Products Journal | 1982 |
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Influence of Changes in Allowable Stresses on Wood Truss Design
Sensitivity studies were conducted on wood truss design to determine the influence of changes in allowable properties on truss performance. The load duration factor was used as an example of […]
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Forest Products Journal | 1985 |
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Influence of Cutting Velocity and Log Diameter on Tensile Strength of Veneer Across the Grain
Southern pine veneer bolts of 10- and 20-inch diameter were rotary cut at three different cutting speeds on a commercial lathe. Tensile strength across the grain of the veneer decreased […]
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Forest Products Journal | 1969 |
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Influence of Fiber Alignment on Stiffness and Dimensional Stability of High-Density Dry-Formed Hardboard
The effects of aligning fibers and of their placement within the fiber mat on strength, elastic modulus, and dimensional stability of high-density dry-formed hardboard were investigated. This approach was taken […]
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Forest Products Journal | 1974 |
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Influence of Flange Quality on the Load-Carrying Capacity of Composite Webbed I-Beams in Flexure
Due to the lack of information on the effect of using low quality lumber of small cross section in composite beams, this study was undertaken to determine the load-carrying capacity […]
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Forest Products Journal | 1983 |
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Influence of Heel Wedges on the Stiffness and Strength on Wood Roof Trusses with Metal Plate Connections
Twenty-four experimental metal-plate wood roof trusses were tested on four truss types with six specimens in each category. The object of the study was to determine the effect of adding […]
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Forest Products Journal | 1975 |
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Influence of Loading Methods on Rolling Shear
Calculated rolling shear stresses for plywood structures were found to exceed published working stresses by a factor between 4 and 13. Thus the objective of this study was to investigate […]
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Forest Products Journal | 1967 |
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Influence of Paper Birch on the Properties of Aspen Waferboard: A Mill Trial
The properties of 7/16-inch commercial waferboard manufactured from a wafer mixture of 70 percent aspen – 30 percent paper birch by weight compared favorably to those of all-aspen waferboard. Modulus […]
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Forest Products Journal | 1982 |
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Influence of Polymer Impregnation on Mechanical Properties of Basswood
Samples of kiln-dried basswood lumber at an average moisture content of 7.2 percent were impregnated with polymethyl methacrylate and converted to a wood-polymer composite by the catalyst-heat technique. Matched, unimpregnated […]
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Forest Products Journal | 1968 |
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Influence of Specific Gravity and Resin Content on Properties of Particle Board
Aspen and yellow birch flake boards were studied to determine effects of wood specific gravity, resin content, and board density on strength and stability. The aspen boards were stronger and […]
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Forest Products Journal | 1959 |
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Influence of Surface Treatments on the Properties of Weathered Particleboards
For an improvement in the performance of directly weathered particleboards, four different surface treatments have been tested. These treatments, with different water vapor permeances and different degrees of water repellency, […]
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Forest Products Journal | 1977 |
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Influence of the Amount and Type of Phenolic Resin on the Properties of a Wafer-Type Particleboard
Wafer-type particleboard was produced from balsam poplar utilizing 3 percent phenolic bonding resin. Boards were also produced from wafers which had been treated with 7 percent phenolic impregnating resin applied […]
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Forest Products Journal | 1972 |
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Influence of Thermal Treatments of Short Duration on the Toughness and Chemical Composition of Wood
Specimens 5/8 by 5/8 by 12 inches of red oak, longleaf pine, and Douglas-fir were prepared. Five specimens of each species were assigned to each of 18 treatment groups. Two […]
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Forest Products Journal | 1964 |
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Influence of Wood Furnish Type on Properties of Oriented Strand Panels
Panels made from oriented strands or flakes provide good structural properties but previous data have indicated only strands from roundwood produced adequate structural properties. Strands from pulp chips produced weak […]
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Forest Products Journal | 1981 |
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Innovation and Productivity Change in the Structural Panel Industry
Innovation and productivity change in the structural panel industry is traced to favorable economic circumstances prevailing in the 1970s and to research that was accomplished over several decades. The research […]
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Forest Products Journal | 1985 |