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| Title | Publication | Publish Year |
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Physical and Mechanical Properties of Cement Bonded Southern Pine Excelsior Board
This paper presents some physical and mechanical properties of commercially produced cement excelsior board (CEB). The industrial manufacturing process was described. The water absorption and dimensional changes of CEB subjected […]
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Forest Products Journal | 1984 |
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Physical and mechanical properties of laminated strand lumber treated with fire retardant
This study investigated the effects of fire retardant chemical treatment on the physical and mechanical properties of commercial laminated strand lumber (LSL). Thirty-five nominal 2- by 4- by 96-inch LSL […]
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Forest Products Journal | 2004 |
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Physical and mechanical properties of plantation-grown tamarack
This study evaluates the physical and mechanical properties of plantation-grown tamarack (Larix Laricina (Du Roi) K. Koch.) in order to assess its potential uses and classify it among other commonly […]
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Forest Products Journal | 1989 |
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Physical and Mechanical Variations in Cottonwood and Hickory Flakeboards Made from Flakes of Three Sizes
Variations in physical and mechanical properties of cottonwood and hickory flakeboards made from three flake sizes were studied. The properties of MOE, MOR, FSPL, Maximum Stress in Tension and Internal […]
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Forest Products Journal | 1971 |
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Physical Properties of Phenolic Bonded Wafer-Type Particleboard from Mixtures of Aspen, Paper Birch, and Tamarack
The effect on the physical properties of phenolic bonded wafer-type aspen particleboard by the addition of paper birch and tamarack was evaluated. Laboratory boards were manufactured at densities of 38, […]
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Forest Products Journal | 1973 |
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Piezoelectric Effect in Wood
The work reported here indicates piezoelectricity has promise as a tool for nondestructive measurement of local strain in a dynamic system, and its voltage patterns may furnish clues to nondestructive […]
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Forest Products Journal | 1963 |
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Pilot Test of Four 16-Foot, Wood-Base Composite Garage Headers
Four beam types were tested in a pilot study to investigate the feasibility of designing a 16-foot garage header using 2 by 4 lumber and structural particleboard. Full-scale performance test […]
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Forest Products Journal | 1977 |
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Pitch-Cambered Glued Laminated Beam Deflections
The design of many structural systems, particularly for longer spans, may be governed by deflection limitations. Design calculations based on working stresses alone may result in the selection of elements […]
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Forest Products Journal | 1986 |
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Pole Strength Tests
The influence of greensalt and pentachlorophenol treatments on the static bending strength of a total of 395 southern pine poles is given for the years 1939, 1940, 1941, and 1946. […]
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Forest Products Journal | 1952 |
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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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Potassium Fertilization Effects on the Bending Properties of Red Pine Wood
Wood samples were taken from 36-year-old red pine trees growing in two areas of a plantation on an outwash palin in the Pack Forest near Warrensburg, New York. The sites […]
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Forest Products Journal | 1974 |
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Potential of Finger-Jointed Lumber for Machine Stress-Rated Lumber Grades
Tensile strength and flatwise bending modulus of elasticity (E) data were developed on 202 pieces of 2- by 4-inch spruce-pine-fir finger-joined lumber sampled from mill production to estimate their potential […]
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Forest Products Journal | 1985 |
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Potential Structural Quality of Trenching Lumber
The structural quality of lumber used for trenching was examined at sites in the Washington, D.C., Houston, Texas, and Los Angeles, California areas as part of a study undertaken by […]
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Forest Products Journal | 1981 |
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Predicting By Sonic Measurements the Strength of Logs and Poles Having Internal Decay
The travel time of a sonic wave in the diametral direction through a log is greater if internal decay is present. An empirical formula was derived relating this increase in […]
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Forest Products Journal | 1971 |
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Predicting Modulus of Rupture for Hardboard Siding Substrate Using Hot-Press Operating Conditions
A procedure was developed for predicting the modulus of rupture (MOR) for southern yellow pine hardboard under different hot-press settings and humidification intensities. A system of three interrelated equations is […]
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Forest Products Journal | 1986 |
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Predicting Modulus of Rupture from Modulus of Elasticity for Small Clear Specimens of Oak and Cottonwood
The moduli of rupture and elasticity for 1200 small, clear specimens of red oak and cottonwood were correlated and a linear regression equation was calculated for each species. Slopes of […]
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Forest Products Journal | 1977 |
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Predicting Rolling Shear Modulus of Plywood
Rolling shear stress may develop in some structural applications, such as box-beams, I-beams, gusset plates, and stressed-skin panels. Determination of plywood rolling shear modulus is a very time-consuming process. Based […]
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Forest Products Journal | 1979 |
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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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Predicting Withdrawal Strength of Sheet-Metal-Type Screws in Selected Hardwoods
Screw withdrawal tests using numbers 4, 6, 8, 10, 12, and 14 type A, pan head, sheet metal type screws of varying length, from several species of hardwood obtained from […]
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Forest Products Journal | 1978 |
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Prediction of Bending Strength of Yellow-Poplar 2 By 4’S from Estimated Strength Ratios
The bending strength ratio of each of 300 8-foot long yellow-poplar 2 by 4’s was estimated from knot size measured by displacement and on the worst face. Actual strength ratios […]
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Forest Products Journal | 1981 |
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Preliminary Evaluation of a Wood-Cement Composite
Sawdust and (or) wood slivers were used as aggregate and combined with cement to form test blocks. Wood:cement ratios varied from 40:60 to 57:43 on a dry weight basis. An […]
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Forest Products Journal | 1976 |
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Preliminary Evaluation of the Strength and Stiffness of Yellow-Poplar Pallet Shook
Strength, stiffness, and some physical properties of yellow-poplar pallet shook were evaluated from a random sample of cutto-size parts taken from mills in a major portion of the growing range. […]
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Forest Products Journal | 1982 |
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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 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 |