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Filtering by: Subject Engineered wood -- Fracture Remove constraint Subject: Engineered wood -- Fracture Degree Field Wood Science Remove constraint Degree Field: Wood Science Language English [eng] Remove constraint Language: English [eng]

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  • Bending property enhancement of wood strand composite using viscoelastic thermal compression

    Creator:
    Rathi, Vardan M.
    Abstract:
    The fundamental intent of the study was to develop an innovative wood-strand composite for use in structural applications. Plantation grown, low density, hybrid poplar was used in the study which was found to be appropriate for the underlying Viscoelastic Thermal Compression (VTC) process. Wood modified by this process has high...
    Resource Type:
    Masters Thesis
    Full Text:
    develop highly engineered wood strand composites using wood modified by the VTC process. The specific

  • Determining fracture toughness by orthogonal cutting of polyethylene and wood-polyethylene composites

    Creator:
    Semrick, Kalin
    Abstract:
    The purpose of this thesis was to evaluate orthogonal cutting as a method to determine the fracture toughness of low and high density polyethylene and wood plastic composites. A test fixture was developed to capture normal and tangential cutting forces at variable depth and rake angle. A tool interface method...
    Resource Type:
    Masters Thesis
    Full Text:
    Master of Science in Wood Science presented on June 14, 2012. Title: Determining Fracture Toughness by

  • Characterization of load transfer in wood-based composites

    Creator:
    Schwarzkopf, Matthew John
    Abstract:
    The mechanical performance of composite materials is determined by the mechanical properties of their individual components and the effective load transfer between these components. Binders are commonly used to bond composite components together and to provide effective load transfer between them. In wood-based composites the binder-component load transfer occurs at...
    Resource Type:
    Dissertation
    Full Text:
    laminates are specifically engineered to have a good affinity with the hydrophilic surface of wood. This

  • Designing a strand orientation pattern for improved shear properties of oriented strand board

    Creator:
    Alldritt, Kenton
    Abstract:
    As oriented strand board (OSB) increases in use as an engineered wood product, improving the in-plane shear properties will allow more efficient use of the material as well as open up other opportunities for OSB to be used in engineered wood products with high shear stresses. Based on classical laminated...
    Resource Type:
    Masters Thesis
    Full Text:
    ) increases in use as an engineered wood product, improving the in-plane shear properties will allow more

  • Formaldehyde-free wood adhesives from soybean protein and lignin : development and characterization

    Creator:
    Liu, Yuan
    Abstract:
    Presently, the production of wood composites relies on the formaldehyde-based wood adhesives such as phenol-formaldehyde (PF) and urea-formaldehyde (UF). However, their dependence on exhaustible fossil fuels and the emission of carcinogenic formaldehyde prompt to develop an environmentally friendly adhesive from renewable natural resources. This work focuses on development and characterization...
    Resource Type:
    Dissertation
    Full Text:
    Doctor of Philosophy in Wood Science presented on August 30, 2005. Title: Formaldehyde-free Wood

  • In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies

    Creator:
    Freitas, Shawn Robert
    Abstract:
    As the forest industry moves toward the use of younger trees and production of an increasing number of composite products improving durability has gained importance. Coatings are one of the most widely used methods for improving wood durability because they improve resistance to water penetration, and subsequent shrinking and swelling,...
    Resource Type:
    Dissertation
    Full Text:
    Shawn Robert Freitas for the degree of Doctor of Philosophy in Wood Science presented on December 7

  • Proof of Concept for a Three-Dimensional Molded Core Wood-Strand Sandwich Panel

    Creator:
    Way, Daniel
    Abstract:
    Sandwich composites are typically produced from two high strength facings bonded to a lower strength, lightweight core. Sandwich design has proven to be efficient for applications demanding high strength and low weight. Wood-based sandwich composites have been largely limited to non-structural applications with the exception of structural insulated panels and...
    Resource Type:
    Masters Thesis
    Full Text:
    polymer insulation core bonded to wood structural panel facings (APA- The Engineered Wood Association

  • Evaluation of remediation techniques for circular holes in the webs of wood I-joists

    Creator:
    Polocoser, Tiberiu
    Abstract:
    The objective of this project was to evaluate methods to remediate a wood I-joist with a single, circular hole in the web while leaving utilities in place. The methods were experimentally evaluated with a full-scale bending test using four equally spaced point loads. There were three depths of joists with...
    Resource Type:
    Masters Thesis
    Full Text:
    , but also tend to be slightly more expensive. Another of the great advantages of an engineered wood

  • Moisture effects on properties of wood-composite assemblies

    Creator:
    King, David
    Abstract:
    Engineered wood composites are used in many structural applications and are intended for dry use. However, these materials may encounter significant amounts of wetting while in service, which can lead to structural failures. This study combined aspects of wood science, mechanics, structural engineering, and mycology to assess changes in material...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ Jeffrey J. Morrell Arijit Sinha Engineered wood composites are used in many

  • The effect of elevated temperature on mechanical behavior of structural wood and wood-based composites

    Creator:
    Sinha, Arijit
    Abstract:
    Engineers, in practice, are often faced with the challenge of evaluating a fire-damaged structure and developing a rehabilitation and retrofit plan. In order to decide on a rehabilitation and retrofit plan, information on thermal degradation of building materials and connections are vital. A critical knowledge gap exists in terms of...
    Resource Type:
    Dissertation
    Full Text:
    ......................................................................................................................66 Chapter 5: Fracture toughness of wood and structural wood-based composites using R curve