Index Catalog // ScholarsArchive@OSU

Assessing biaxial strength characteristics of wood-based structural panels

Creator:: Cheng, Ping, 1960-
Abstract:: Biaxial strength characteristics of wood-based structural panels were evaluated by using analytical and experimental methods. Cruciform plywood specimens were tested under biaxial tensile-tensile, compressive-compressive loadings in a symmetrically-jointed- arm test fixture, which was mounted on a universal testing machine. Performance of the test fixture was also evaluated during the tests....
Resource Type:: Masters Thesis

Model and procedure for determination of strength and stiffness of wood studs

Creator:: Fernandez, Virgilio Asuncion
Abstract:: Elasticity properties of wood studs are essential inputs for the structural analysis of wood-stud wall systems. A theoretical procedure was developed to determine the probability distributions for the deflection-load relations of stud samples. The procedure is based on the finite element analysis and a Monte- Carlo type simulation and accounts...
Resource Type:: Dissertation
Full Text:: AND PROCEDURE FOR DETERMINATION OF STRENGTH AND STIFFNESS OF WOOD $TUDS Abstract approved

A study of load-induced microdeformations within wood-based structural members using optical scanning techniques

Creator:: Irving, David C.
Abstract:: Efficient use of wood in structural applications depends upon the accuracy with which we can predict the mechanical behavior of members under load. Most methods of lumber grading and laminated beam design depend upon statistical and/or empirical techniques in which averaged properties for complete members are derived. A knowledge of...
Resource Type:: Masters Thesis

Fluorescence microscopy for detecting incipient decay and estimating residual strength of wood

Creator:: Lowell, Eini Carole
Abstract:: The objectives of this study were to 1) develop a relatively quick staining procedure that would detect incipient decay by color differentiation under fluorescence, 2) quantitatively assess the amount of decay present with the use of an image analyzer, and 3) re/ate loss in strength at various decay levels to...
Resource Type:: Masters Thesis
Full Text:: Microscopy for Detecting Incipient Decay and Estimating Residual Strength of Wood Abstract approved

The effect of wood density on the kraft pulping properties of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

Creator:: Promachotikool, Montree
Abstract:: Three samples of different wood densities of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) were cooked by the kraft process. The yields and the Kappa numbers were studied to establish the rates and the energies of activation of the pulping and delignification reactions respectively. Wood properties did not show significant effects on...
Resource Type:: Masters Thesis

The stress-strain relationships in wood and fiber-reinforced plastic laminae of reinforced glued-laminated wood beams

Creator:: Tingley, Dan A., (Daniel Arthur), 1954-
Abstract:: The reinforcement of wood and wood composite structural products to improve their mechanical properties has been in practice for many years. Recently, the use of high-strength fiber-reinforced plastic (FRP) as a reinforcement in such applications has been commercialized. The reinforcement is manufactured using a standard pultrusion process or alternatively a...
Resource Type:: Dissertation

Image segmentation for defect detection on veneer surfaces

Creator:: Zhong, Yuan, 1956-
Abstract:: Machine vision is widely used in scientific areas and non-wood using industries, but the extreme variability of wood has limited its adoption by forest products industries. However, it is now becoming a key factor in further automation of the forest products industry. As a very important part of machine vision,...
Resource Type:: Dissertation
Full Text:: non-wood using industries, but the extreme variability of wood has limited its adoption by forest

Vapor copper : a potential wood preservative

Creator:: He, Wenlong
Abstract:: This study seeks to determine the feasibility of utilizing one vaporizable copper compound - bis-[1- (dimethylamino)-2-propanolato] copper(II) (Cu(DMAP)₂ as a potential wood preservative. The synthesis of Cu(DMAP)₂ was conducted in accordance with a method developed by Buhro and Dingman, Washington University, St. Louis, Missouri. The yields of Cu(DMAP)₂ synthesis were...
Resource Type:: Masters Thesis

Treatability of plywood panels containing western wood species from different geographic regions of the Pacific Northwest

Creator:: Mitchoff, Maureen Elaine
Abstract:: Plywood panels collected from thirty seven mills located throughout the Pacific Northwest they were treated with chromated copper arsenate Type C (CCA-C) or ammoniacal copper zinc arsenate (ACZA) using modified full cell and full cell processes respectively. Preliminary tests were performed to determine plywood sample size, replication, and treating schedule....
Resource Type:: Masters Thesis

Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

Creator:: Gibson, David G. (David Glenn), 1958-
Resource Type:: Masters Thesis
Full Text:: from sound, non-decayed wood. These techniques may be specialized for the product they can be used on

ScholarsArchive@OSU

Assessing biaxial strength characteristics of wood-based structural panels

Model and procedure for determination of strength and stiffness of wood studs

A study of load-induced microdeformations within wood-based structural members using optical scanning techniques

Fluorescence microscopy for detecting incipient decay and estimating residual strength of wood

The effect of wood density on the kraft pulping properties of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco)

The stress-strain relationships in wood and fiber-reinforced plastic laminae of reinforced glued-laminated wood beams

Image segmentation for defect detection on veneer surfaces

Vapor copper : a potential wood preservative

Treatability of plywood panels containing western wood species from different geographic regions of the Pacific Northwest

Detecting early decay and estimating residual strength of Douglas-fir heartwood by infrared and ultraviolet spectrophotometry

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