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Filtering by: Creator Hardy, J. T. (John T.) Remove constraint Creator: Hardy, J. T. (John T.) Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • The Applicability of Linear Elastic Fracture Mechanics to Compressive Damage of the Carbon Fiber Reinforced Plastic Matrix

    Creator:
    Carpenter, Kevin T.
    Abstract:
    With the widespread replacement of aluminum with composite materials, particularly in aircraft structures, the lack of comprehensive understanding of these materials is unsettling. The complex nature of these materials, with respect to isotropic aluminum, makes the prediction of their mechanical response equally complex. The failure of carbon fiber reinforced plastic...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ John P. Parmigiani With the widespread replacement of aluminum with composite materials

  • The fracture toughness of medium density fiberboard and other fiber bridging composites

    Creator:
    Matsumoto, Noah T.
    Abstract:
    In many composites, fiber bridging develops as part of the fracture process. Fiber bridging invalidates many toughness evaluation methods such as the ASTM E399 and complicates the identification of crack length, which is a necessary parameter in energy methods. In order to measure the toughness of fiber bridging composites, an...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Noah T. Matsumoto for the degree of Master of Science in

  • Detecting fluid flows with bioinspired hair sensors

    Creator:
    Dickinson, Benjamin T.
    Abstract:
    Many animals detect prey or enhance their locomotion with information from hair-like receptors that are activated by local fluid flows. The utility of biological hair receptors has motivated the design of artificial hair sensors (AHS) for flow control applications where aerodynamic or hydrodynamic forces play a significant role in the...
    Resource Type:
    Dissertation
    Full Text:
    . 5 THE DETECTION OF UNSTEADY FLOW SEPARATION WITH BIOINSPIRED HAIR-CELL SENSORS B. T. Dickinson, J

  • Describing Tsunami Inundation and Debris Motion using Optical Measurement Methods in a Large-Scale Wave Basin

    Creator:
    Rueben, Matthew Robert
    Abstract:
    This thesis consists of two papers in manuscript format. The first paper presents optical measurements of tsunami inundation through an urban waterfront in a laboratory wave basin. The physical model was constructed at 1:50 scale and was an idealization of the town of Seaside, Oregon. The paper presents an analysis...
    Resource Type:
    Honors College Thesis
    Full Text:
    color scheme used on the debris specimen box lids in the ‘Housesmash2’ experiment. John Stanley has

  • Nonlinear model reduction using the group proper orthogonal decomposition method

    Creator:
    Dickinson, Benjamin T.
    Abstract:
    Proper orthogonal decomposition (POD) in conjunction with the Galerkin projection has been used as a model reduction technique for the tractable real-time control of high-dimensional systems. While POD based model reduction may improve the tractability of high-dimensional models, the nonlinear POD based model may be impractical for control due to...
    Resource Type:
    Masters Thesis
    Full Text:
    approximation to u(t,x) be written u(t,x) ≈ uN(t,x) = N∑ j=1 αj(t)βj(x), (2.13) where N is the number of

  • Particulate and total gaseous hydrocarbon emissions from a gas heated veneer dryer

    Creator:
    Shigehara, Roger T.
    Abstract:
    A source test was conducted to determine the particulate and the total gaseous hydrocarbon emissions from a gas heated veneer dryer. Samples were taken on eight separate days from the exhaust stacks while the dryer was processing Douglas fir veneer. Of the eight days, three was used to determine the...
    Resource Type:
    Masters Thesis
    Full Text:
    to John Kellogg, Larry Thornburgh, Harold Vincent, and Jack Kellogg for their contributions. To Dr

  • Monitoring and diagnosis of a multi-stage manufacturing process using Bayesian networks

    Creator:
    Wolbrecht, Eric T.
    Abstract:
    This thesis describes the application of Bayesian networks for monitoring and diagnosis of a multi-stage manufacturing process, specifically a high speed production part at Hewlett Packard. Bayesian network "part models" were designed to represent individual parts in-process. These were combined to form a "process model", which is a Bayesian network...
    Resource Type:
    Masters Thesis
    Full Text:
    process using Bayesian networks AN ABSTRACT OF THE THESIS OF Eric T. Wolbrecht for the degree of Master

  • Feasibility of Lorentz mixing to enhance combustion in supersonic diffusion flames

    Creator:
    Nahorniak, Matthew T.
    Abstract:
    The purpose of this research was to determine if it is feasible to apply Lorentz mixing to supersonic diffusion flames, such as those found in SCRAMjet engines. The combustion rate in supersonic diffusion flames is limited by the rate at which air and fuel mix. Lorentz mixing increases turbulence within...
    Resource Type:
    Masters Thesis
    Full Text:
    ) 2 ( dv du T = # 2 (2.10) 3 \ dy dx j 7 du dv\ Z (2.11) dx1(9Y The heat conduction terms

  • A methodology for iterative design using physical test data

    Creator:
    Morris, Wesley T.
    Abstract:
    This thesis addresses a common knowledge gap that was identified amongst the Society of Automotive Engineers (SAE) competition design teams at Oregon State University. Students that join the SAE teams at Oregon State University typically do not have experience using physically collected data during a design process. This leads to...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Wesley T. Morris

  • A performance comparison of chainsaw bar lubricants

    Creator:
    Suryan, Levi J.
    Abstract:
    Chainsaws, an indispensable tool for modern forestry operations, rely on bar lubricant to prevent rapid wear of the chain and bar. Choice of bar lubricant must balance performance, cost, and biological impact. Many bar lubricants are available, but little published work exists that conclusively ranks the performance of these choices....
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Levi J. Suryan for the