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Filtering by: Creator Mahaffee, W. F. Remove constraint Creator: Mahaffee, W. F. Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.)

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  • Climate Change Impacts to Estuarine Hydrodynamics: Tools, Methodologies, and Predictions

    Creator:
    Parker, Kai A.
    Abstract:
    Coastal communities in the U.S. Pacific Northwest (PNW) are rapidly engaging with the idea that hazards and environmental pressures are changing and may be characteristically different in the near future. This has led to a need for scientific knowledge and tools that can help coastal communities prepare and build resilience...
    Resource Type:
    Dissertation
    Full Text:
    David F. Hill Coastal communities in the U.S. Pacific Northwest (PNW) are rapidly engaging with

  • Local scour at isolated obstacles on river beds

    Creator:
    Huang, Cheng-Chang
    Abstract:
    Maximum equilibrium scour depths, equilibrium scour volumes, and induced equilibrium movements at isolated obstacles on river beds were investigated in clear-water scour. The research was achieved by a systematic flume study based on the results of dimensional analysis of local scour. The main tested obstacles for local scour were cubes....
    Resource Type:
    Dissertation
    Full Text:
    . Sollitt, F. Tom Lindstrom, Marshall J. English, Hiram W. Li, and W. S. (Gus) Baker who helped guide me

  • Geotechnical significance of poorly crystalline soils derived from volcanic ash

    Creator:
    Thrall, F. G.
    Resource Type:
    Dissertation
    Full Text:
    Lyndalu Sikes for F. G. Thrall ACKNOWLEDGEMENTS I would like to thank Dr. W. L. Schroeder for help in

  • Finite element analysis of wave interference effects between large structures

    Creator:
    Huang, Min-chih
    Abstract:
    A numerical calculation procedure for the hydrodynamic interference effects between large multiple structures interacting with linear ocean waves is presented in this study. Viscous effects are neglected and the hydrodynamic pressure forces are assumed to be inertially dominated. A finite element method which incorporates radiation boundary dampers is adopted to...
    Resource Type:
    Dissertation
    Full Text:
    INTERFERENCE EFFECTS BETWEEN LARGE STRUCTURES Redacted for Privacy Abstract approved: - -1 Dr. John W

  • Interaction of water waves and deformable bodies

    Creator:
    Broderick, Laurie L.
    Abstract:
    A time-domain model was developed to predict the fluid/structure interaction of a three-dimensional deformable body in a fluid domain subject to long-crested finite amplitude waves. These nonlinear waves induce transient motion in the body. In turn, the interaction of the body with the waves modifies the wave field, causing additional...
    Resource Type:
    Dissertation
    Full Text:
    approved:_Redacted for Privacy / Dr. John W. Leonard A time-domain model was developed to predict the

  • Finite element analysis of wave-structure interactions in the time domain

    Creator:
    Lee, Jaw-fang
    Abstract:
    The time-domain simulation of wave-structure interactions using the finite element method is presented in this study. Combined initial and boundary value problems for diffraction and radiation of waves by large structures are posed. Linearized free surface boundary conditions are used, but motions of the structural boundaries compared to the wave...
    Resource Type:
    Dissertation
    Full Text:
    -STRUCTURE INTERACTIONS IN Tr TIME DOMAIN Abstract approved: Redacted for privacy John W. Leonard The time

  • Reliability-based Serviceability Limit State Design Procedures for Shallow Foundations

    Creator:
    Huffman, Jonathan C.
    Abstract:
    Reliability-based geotechnical foundation design focusses on soil and structure analysis that meets necessary safety, performance and/or serviceability criteria, calibrated based on probabilistic analyses and an accepted level of risk. As the civil engineering community seeks to better harmonize geotechnical and structural design methodologies, reliability-based design is being incorporated more into...
    Resource Type:
    Dissertation
    Full Text:
    : ______________________________________________________ Armin W. Stuedlein Reliability-based geotechnical foundation design focusses on soil and

  • Cable dynamics in an ocean environment

    Creator:
    Tuah, Hang
    Abstract:
    The nonlinear dynamic analysis of cable and cable-large body systems subject to both deterministic and non-deterministic loading is presented in this study. Nonlinearities occur due to large displacements, material nonlinearity, lack of stiffness in compression, and the non-conservative fluid loading. A finite element model is used to model the cable...
    Resource Type:
    Dissertation
    Full Text:
    Dr.tohn W. Leonard The nonlinear dynamic analysis of cable and cable- large body systems subject to both

  • The static and dynamic analysis of discretely represented moorings and cables by numerical means

    Creator:
    Dominguez, Richard Frank
    Abstract:
    Computer oriented techniques and procedures are presented for the analysis of single and multiple cable systems. Application is made to a two-point mooring system influenced by surface and subsurface hydrodynamic loading. The effects of the various parameters are presented and the numerical method is compared to exact solutions obtained from...
    Resource Type:
    Dissertation
    Full Text:
    MEANS Abstract approved: Redacted for privacy Robert W. Fliskier Computer oriented techniques and

  • Nonlinear dynamic analysis of cable and membrane structures

    Creator:
    Lo, Alain
    Abstract:
    The nonlinear dynamic analysis of cable and membrane structures is presented in this study. Attention is given to the nonlinearities arising from large displacements, from nonlinear stress-strain relationships and from nonconservative loadings. The finite element method is used to model the cables and membranes. Curvilinear geometries of the elements are...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Redacted for privacy Dr. John W. Led and The nonlinear dynamic analysis of cable and