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Durability Assessment of Wood Composites Using Fracture Mechanics

Creator:: Mirzaei, Babak
Abstract:: The advent of synthetic adhesives has transformed the structural applications of wood. However, a persistent issue in adhesively-bonded wood products has been moisture durability. When designing wood based composites, moisture durability will depend on both the wood phase and the adhesive phase. A key question, therefore, is how does one...
Resource Type:: Dissertation
Full Text:: methodologies for durability assessment of wood composites and adhesives. Fracture resistance curves (R

Development and design of veneer scarfing machinery

Creator:: Pearl, John Joseph
Resource Type:: Masters Thesis
Full Text:: Development and design of veneer scarfing machinery DÍ

Heat and mass transfer rates associated with the drying of Southern pine and Douglas fir veneer in air and in steam at various temperatures and angles of impingement

Creator:: Laity, Walter William
Abstract:: Southern pine and Douglas fir veneer samples were dried in air under the following conditions: air temperatures were 350, 600, and 750°F; air velocities were 50, 100, and 150 feet per second, and angles of impingement of air against the veneer surfaces were 0°, 45°, and 90°. The resulting drying...
Resource Type:: Masters Thesis
Full Text:: ) Title: Heat and Mass Transfer Rates Associated with the Drying of Southern Pine and Douglas Fir Veneer

Gluability of platen-dried Douglas-fir veneer

Creator:: Sandoe, Michael Dean
Abstract:: This study was undertaken to determine whether Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) veneer could be platen-dried and then sucessfully glued into two-ply parallel-laminated panels. A range of veneer thicknesses, platen temperatures and final dry moisture contents were examined. Thicknesses included were nominal 0.1, 0.2, 0.3 and 0.4 inches; platen temperatures...
Resource Type:: Masters Thesis

Effect of solvent extraction and planing of veneers from Southeast Asian species upon glueline characteristics and bond durability

Creator:: Dougal, Edward Francis
Abstract:: Using Southeast Asian hardwood veneers for exterior plywood siding has caused problems because some species produced quality plywood while other species produced plywood which delaminated soon after being put in service in exterior exposure. This study attempted to improve the durability of glue bonds of some Southeast Asian hardwood veneers...
Resource Type:: Masters Thesis
Full Text:: veneer surfaces and plywood gluelines of treated and untreated veneer. Stereo light microscopy, incident

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Creator:: Clark, Randy Jon
Abstract:: A new carbohydrate-phenol based resorcinol resin (CPR resin) was synthesized by end capping a known carbohydrate-phenol based resole with resorcinol under basic reaction conditions. Synthetic parameters, such as duration of cook, pH, and the amount of resorcinol and formaldehyde were varied to produce resins with molecular weights (Mw) ranging from...
Resource Type:: Masters Thesis

Heat and mass transfer rates associated with the drying of plywood veneer using superheated steam at various angles of impingement

Creator:: South, Veeder, III
Resource Type:: Masters Thesis
Full Text:: IMPINGEMENT Abstract approved:____ James R. Weltr Southern pine and Douglas fir sapwood veneer were dried

Properties of veneer sliced from serpentine-end-matched flitches

Creator:: Liu, Yuqing
Abstract:: Eighteen Ponderosa Pine (Pinus ponderosa Dougl.ex.laws) veneer flitches were randomly selected and crosscut into paired flitches. Serpentine-end-matched (SEM) joints were machined in the flitches, joint amplitude equal to the width in one half of the paired flitch and joint amplitude equal to 2/3 width in the other half of the...
Resource Type:: Masters Thesis

Image pre-processing algorithms for isolation of defects in Douglas-fir veneer

Creator:: Forrer, Johannes Barry
Abstract:: The goal of this research is to develop automatic techniques for identifying defects in Douglas-fir veneer. To achieve this goal, computer vision techniques, in particular image-processing, will be applied. Several pre-processing steps may be required to enhance images in making further analysis easier, faster, and more reliable. Pre-processing is often...
Resource Type:: Masters Thesis

Simulation analysis of green veneer recovery as influenced by different clipping strategies

Creator:: Babb, Michael G.
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Durability Assessment of Wood Composites Using Fracture Mechanics

Development and design of veneer scarfing machinery

Heat and mass transfer rates associated with the drying of Southern pine and Douglas fir veneer in air and in steam at various temperatures and angles of impingement

Gluability of platen-dried Douglas-fir veneer

Effect of solvent extraction and planing of veneers from Southeast Asian species upon glueline characteristics and bond durability

Investigation of a new resin as an exterior adhesive to bond high moisture content veneers

Heat and mass transfer rates associated with the drying of plywood veneer using superheated steam at various angles of impingement

Properties of veneer sliced from serpentine-end-matched flitches

Image pre-processing algorithms for isolation of defects in Douglas-fir veneer

Simulation analysis of green veneer recovery as influenced by different clipping strategies

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