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  • End and side launching of marine vessels

    Creator:
    Johnson, Leighton W.
    Abstract:
    This dissertation deals with end and side launching of marine vessels. Its object is three-fold: first, to review several successful techniques of launching and to describe the problems involved; second, to derive and explain the calculations needed for assuring a successful launching; and third, to propose several computer programs which...
    Resource Type:
    Masters Thesis
    Full Text:
    Privacy H. Jj Dahlke, Associate Professor of Mechanical Engineering Redacted for Privacy L. Siegel

  • Parabolic northern-hemisphere river flow teleconnections to El Niño-Southern Oscillation and the Arctic Oscillation

    Creator:
    Fleming, S. W. and Dahlke, H. E.
    Abstract:
    It is almost universally assumed in statistical hydroclimatology that relationships between large-scale climate indices and local-scale hydrometeorological responses, though possibly nonlinear, are monotonic. However, recent work suggests that northern-hemisphere atmospheric teleconnections to El Niño-Southern Oscillation (ENSO) and the Arctic Oscillation can be parabolic. The effect has recently been explicitly confirmed...
    Resource Type:
    Article
    Full Text:
    teleconnections to El Niño-Southern Oscillation and the Arctic Oscillation Fleming, S. W., & Dahlke, H. E. (2014

  • Photomechanics of stress transfer mechanisms in composite materials

    Creator:
    Edelman, Walter E.
    Abstract:
    A study of stress transfer near the ends of the whisker in a simulated whisker reinforced composite material was conducted by using photoelastic techniques. The composite material studied was αAl₂O₃ whiskers in an aluminum matrix. The photoelastic models used consisted of a scaled-up macroscopic stiffener embedded in a three-dimensional epoxy...
    Resource Type:
    Dissertation
    Full Text:
    : PHOTOMECHANICS OF STRESS TRANSFER MECHANISMS IN COMPOSITE MATERIA] Abstract approved; fans J. Dahlke A study

  • The photoelastic coating method applied to the stress analysis of wood

    Creator:
    Fritz, Dennis William
    Abstract:
    The merits of the photoelastic coating technique as applied to wood were evaluated. Comparative tests were made on 12 nominal two-by-four Douglas Fir boards. The object of these tests was to determine the limitations of this technique, such as accuracy and complexity of experimental procedure. Correlation of the experimental results...
    Resource Type:
    Masters Thesis
    Full Text:
    Haizi Dahlke The merits of the photoelastic coating technique as applied to wood were evaluated

  • Stress distribution around butt joints in laminated lumber

    Creator:
    Hansult, Charles Clark
    Abstract:
    The stress concentration factors at butt joints in six-ply laminated lumber were determined experimentally. Concentration factors for a uniform tensile stress were found for a joint at each of three possible locations. Four experimental techniques were used and evaluated on actual wood specimens: strain gages, brittle lacquer, moiré grids, and...
    Resource Type:
    Masters Thesis
    Full Text:
    . and Paul H. Adams. Experimental stress analysis and motion measurement. Columbus, Ohio, Charles E

  • Polycarbonate as a photoplastic stress freezing material

    Creator:
    Broderick, John Justin
    Abstract:
    Dead weight creep tests were conducted on polycarbonate in order to determine if it is a linear viscoelastic material; or if it is not, then to determine the feasibility of photoplastic stress freezing. Secondary objectives were: the determination of the parameters in the creep compliance of a four element viscoelastic...
    Resource Type:
    Masters Thesis
    Full Text:
    lin (1949) and E, H. Dill (1964) study the relationships between the index of re- fraction, stress

  • Design considerations for strain gage transducers

    Creator:
    Smith, Harlan Bradford
    Abstract:
    Design considerations are presented which apply to all types of electrical resistance strain gage transducers. While the concepts apply to mass produced transducers, the information should be most useful for the engineer or technician who designs one-of-a-kind or "home-made" transducers. Errors which affect the accuracy of strain gage transducers are...
    Resource Type:
    Masters Thesis
    Full Text:
    Abstract approved: Redacted for Privacy IHansp. Dahlke Design considerations are presented which apply to

  • Analysis of an externally loaded prestressed cylindrical shell

    Creator:
    Webb, Gerald Bruce
    Abstract:
    The concept of a prestressed cylindrical shell was investigated. In particular, a cylindrical shell constructed from coiled pressurized tubing was analyzed. This analysis was concentrated in two main areas, the first involved the failure modes of the prestressed cylinder. Both the buckling and yielding behavior of the tube walls was...
    Resource Type:
    Masters Thesis
    Full Text:
    it from coiled pressurized tubing was origi- nated by Otto P. H. Dahlke in 1964, while employed by

  • The stress analysis of a truck frame bracket

    Creator:
    Barlow, Dwight Edward
    Abstract:
    In the construction of a cab-over-engine semi tractor, Freightliner Corporation of Portland, Oregon uses brackets to make the connection between the front leaf spring mounts, bumper, front hinges for the tilt-cab and the longitudinal frame rails. One bracket is used on each side. The integrity of these brackets is essential...
    Resource Type:
    Masters Thesis
    Full Text:
    . Sept. 3, 1962. 3. Dahlke, H. J. and D. E. Barlow. Stress Analysis, Right and Left Front Frame Brackets

  • A method of calculating non-steady compressible flow in a propulsive duct

    Creator:
    Winiarski, Lawrence Decker
    Abstract:
    A numerical technique is presented for solving the gas dynamics of a pulsating combustor. The computer solution which is developed follows directly from the fundamental conservation laws applied to discrete volumes rather than attempting either to finite difference the resulting partial differential equations, or to apply the Method of Characteristics....
    Resource Type:
    Dissertation
    Full Text:
    J. Dahlke A numerical technique is presented for solving the gas dynamics of a pulsating combustor