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Filtering by: Creator Volker, K. C. Remove constraint Creator: Volker, K. C. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Distortion-induced fatigue cracking of girder-to-crossbeam connection

    Creator:
    Aljutaili, Dhari S.
    Abstract:
    Oregon Department of Transportation’s bridge no. 9743b is a multi-span, two-girder steel deck bridge connecting the busy interstates 5 and 205. Vertical cracks have been detected in the welded girder-to-crossbeam connections at the bents. Distortion-induced fatigue is suspected to be responsible for the cracking. Linear elastic beam analysis, 2-D and...
    Resource Type:
    Masters Thesis
    Full Text:
    Law to calculate the fatigue life: ( ) c i a m a daN A K = Δ∫ (6.8) where A and are

  • Vehicle dynamic validation and analysis from suspension forces

    Creator:
    Murray, William S.
    Abstract:
    Several standardized courses for Formula SAE (FSAE) testing are introduced and described with sufficient detail to be reproduced by any Formula SAE team. Basic analysis methods for the courses are given as well as explanations of how those analyses could be used. On-car data from the Global Formula Racing (GFR)...
    Resource Type:
    Masters Thesis
    Full Text:
    : Robert K. Paasch Several standardized courses for Formula SAE (FSAE) testing are introduced and

  • Mechanical characterization of a simple gel in a prototype device that models a degenerative intervertebral disc

    Creator:
    Cenar, Yannick
    Abstract:
    A large part of low-back pain occurrences are due to disc herniation or prolapse of the nucleus pulposus. An alternative technique to existing treatments of low back pain includes nucleus pulposus replacement by an artificial material to relieve pain and restore normal function. To date, there has been a deficiency...
    Resource Type:
    Masters Thesis
    Full Text:
    Intervertebral Disc. Abstract approved: Brian K. Bay A large part of low-back pain occurrences

  • An In Vivo Functional Evaluation, in an Avian Model, of Passive Implantable Designs to Restore Hand Function after Spinal Cord Injury

    Creator:
    Casebier, Justin C.
    Abstract:
    The surgical standard of care to partially restore grasping function after a traumatic spinal cord injury is a reconstructive tendon transfer-surgery that connects all four finger flexors to an expendable wrist extensor. While restorative, this surgery has a fundamental problem; the movement of all four fingers flexors is directly coupled,...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Justin. C. Casebier for

  • Evaluation of Materials for Use in Open-Cycle Magnetohydrodynamic Power Generation

    Creator:
    Bowen, Michael S.
    Abstract:
    Recent interest in oxy-fuel combustion for carbon capture, as well as advancements in technologies such as magnetics, materials, and computational modeling has sparked renewed interest in magnetohydrodynamic (MHD) power generation. The increased temperatures of oxy-fuel combustion versus air-fuel combustion poses a challenge in the selection of materials for plasma exposed...
    Resource Type:
    Masters Thesis
    Full Text:
    1990s, a K-Zr-O ternary phase diagram at 700˚C was published showing numerous stable potassium

  • Mechanical linkage design for haptic rehabilitation and development of fine motor skills

    Creator:
    Streng, B. Taylor
    Abstract:
    Thousands of children and adults suffer from fine motor skill deficits due to developmental disabilities or brain trauma. In order to acquire or reclaim these precision motor movements, occupational therapists work closely with each patient to develop the muscle memory required for completing tasks such as handwriting or drawing. Although...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ Brian K. Bay Thousands of children and adults suffer from fine motor skill deficits due to

  • Drilling process evaluation by predicting drilled hole quality and drill bit wear with on-line acoustic emission signals

    Creator:
    Wang, Kuang-Jen, 1962-
    Abstract:
    Improvement of manufacturing productivity is dependent on the successful automation of manufacturing processes, the success of which is based in turn upon the availability of information which describes the state of manufacturing operations. Acoustic Emission (AE) signals related to the cutting process and tool wear have been recently applied to...
    Resource Type:
    Dissertation
    Full Text:
    . Abstract approved: Robert K. Paasch Improvement of manufacturing productivity is dependent on the

  • The wave energy resource of the US Pacific Northwest

    Creator:
    Lenee-Bluhm, Pukha
    Abstract:
    The substantial wave energy resource of the US Pacific Northwest (i.e. off the coasts of Washington, Oregon and N. California) is assessed and characterized. Archived spectral records from ten wave measurement buoys, operated and maintained by the National Data Buoy Center and the Coastal Data Information Program, form the basis...
    Resource Type:
    Masters Thesis
    Full Text:
    wave celerity as 𝑐𝑔 = 1 2 + 𝑘𝑕 sinh 2𝑘𝑕 𝑐 (4) Figure 13. Group velocity as a

  • Design, analysis, and validation of composite c-channel beams

    Creator:
    Koski, William C.
    Abstract:
    A lightweight carbon fiber reinforced polymer (CFRP) c-channel beam was previously designed using analytical theory and finite element analysis and subsequently manufactured through a pultrusion process. Physical testing revealed the prototype did not meet the bending and torsional stiffness of the beam model. An investigation revealed that the manufactured prototype...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF William C

  • A model for the mechanical behavior of irradiated mixed carbide sphere pac fuel pins

    Creator:
    George, Thomas L.
    Abstract:
    A model is developed that allows the prediction of the stress-strain distribution in a mixed carbide sphere pac fuel pin during irradiation. The model is coupled with a previously developed model for the thermal behavior of the pin. The one-dimensional (radial at various axial locations) solution is for quasi-steady pin...
    Resource Type:
    Dissertation
    Full Text:
    Growth and Shrinkage in the Small Sphere Array due to Plastic Flow 115 4.4 YIELD STRESS OF (U,PU)C 116