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Filtering by: Creator Saide, P. E. Remove constraint Creator: Saide, P. E. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • An investigation of transition from penetration to deflection in the fracture of bi-material interfaces

    Creator:
    Strom, Joshua L.
    Abstract:
    The problem of determining whether a crack impinging on an interface will penetrate into the substrate or deflect along the interface is vital to the effective design of layered and composite material systems. Of particular interest is the transition between crack propagation by penetration through an interface and deflection along...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________________________ John P. Parmigiani The problem of determining whether a crack impinging on an

  • A numerical analysis of ice fog produced by automobiles

    Creator:
    Nelson, William George
    Abstract:
    A model of an exhaust plume was developed and programmed on a digital computer. The purpose of the model was to predict the concentration and size distribution of ice particles produced from automobile exhaust during arctic conditions. The model accounted for the nucleation, growth, and freezing of the condensed water...
    Resource Type:
    Dissertation
    Full Text:
    Hewson, Dr. William P. Lowry, Professor John G. Mingle, and. Dr. Charles E. Wicks for their assistance

  • Flow characteristics of semi-confined impinging jet arrays

    Creator:
    Dano, Bertrand P. E.
    Abstract:
    The present study proposes to investigate the flow structure of different arrays of jets impinging on a flat surface enclosed by three walls, creating a channel that forces the air to leave in one preferential direction, generating a self sustain crossflow. Details of both the mean and some turbulence quantities...
    Resource Type:
    Masters Thesis
    Full Text:
    characteristics, Cusped ellipse (0°), HJDH=4, Vr=0.0.32, Re= 13,500 63 5.30 P[V, Circular jet, Fi/DH=4, Vr=0.159

  • Interactions of a fully modulated inclined jet with a crossflow

    Creator:
    Dano, Bertrand P. E.
    Abstract:
    Jets in crossflow are used in a wide range of engineering applications and have been studied for more than 60 years. The transversal penetration and structure of a jet placed in a crossflow is known to be strongly three-dimensional. It is believed that, by using a pulsed jet inclined in...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Bertrand P. E. Dano for the

  • Fatigue Testing and Analysis of Polymer and Composite Materials Used in Heavy-Duty Trucks

    Creator:
    Gahan, Kevan
    Abstract:
    As structural durability analysis is increasingly trusted during the design processes of the automotive industry, more complete and sophisticated modeling of material behavior under both static and dynamic loading conditions is paramount. This is especially true regarding the application of heavy-duty trucks, where modern designs contain large parts such as...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ John P. Parmigiani As structural durability analysis is increasingly trusted during the

  • Dielectric Properties of Perovskite Ceramics Based on BaTiO3 and Bi(Mg1/2Ti1/2)O3

    Creator:
    Sundahl, Christopher S.
    Abstract:
    The properties of (1-x)BaTiO3-xBi(Mg1/2Ti1/2)O3 (BT-BMT) ceramics were fabricated from reagent-grade ceramic powders by solid-state methods and investigated for solubility, relative permittivity, dielectric loss, polarization, and electromechanical strain. The solubility limit was found to be between x = 0.3 and 0.4. Ba-deficient samples were fabricated, corresponding to stable single-phase compositions; these...
    Resource Type:
    Honors College Thesis
    Full Text:
    1000 1200 1400 1600 1800 R e la ti v e P e rm it ti v it y 0 100 200 300 400 500 600 0 0.02

  • Investigation into the role of strength and toughness in composite materials with an angled incident crack

    Creator:
    Grimm, Brian A.
    Abstract:
    Understanding the mechanical behavior of composite materials requires extensive knowledge of fracture behavior as a crack approaches an interface between the bulk material and the reinforcement structure. Overall material toughness can be greatly influenced by the propensity of an impinging crack to propagate directly through the substrate or deflect along...
    Resource Type:
    Masters Thesis
    Full Text:
    Toughness in Composite Materials with an Angled Incident Crack Abstract approved John P

  • Sensitivity of Hashin damage parameters for notched composite panels in tension and out-of-plane bending

    Creator:
    Wright, Thomas J.
    Abstract:
    When using Finite Element Analysis (FEA) to model notched composite panels, the values of certain material properties can have a great effect on the outcome of the simulation. Progressive damage modeling is used to model how a composite structure will fail, and how that failure will affect the response of...
    Resource Type:
    Masters Thesis
    Full Text:
    -plane bending Abstract approved: John P. Parmigani When using Finite Element

  • Experimental characterization of saw chain cutting performance

    Creator:
    Otto, Andrew W.
    Abstract:
    Chainsaw users value cutting performance and safety. Knowledge of the forces exerted during sawing are necessary to understand and improve the cutting performance of saw chain. Additionally, cutting forces can be used to form metrics for evaluating performance tradeoffs when using a safety (i.e. low-kickback) saw chain versus a standard...
    Resource Type:
    Masters Thesis
    Full Text:
    changing predictor variable magnitude P re d ic to r F o rc e High-Force Mid-Force Low-Force

  • Adhesive Properties Subject to Variation in Temperature, Thickness, and Working Time

    Creator:
    Aerne, Nicholas, S. J.
    Abstract:
    Adhesive use is becoming increasingly common in manufacturing processes. The advantage of adhesives are light weight components, non-destructive fastening techniques and distribution of loads over the applied bond region. Modeling the behavior of adhesive bond lines in fastening joints can help in the design process to make an optimized joint,...
    Resource Type:
    Masters Thesis
    Full Text:
    John P. Parmigiani Adhesive use is becoming increasingly common in manufacturing processes