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  • A study of solidification dynamics with liquid mass influx

    Creator:
    Thirunavukarasu, Balamurugesh
    Abstract:
    A computational model is developed to study the effects of alumina layer formation on an ablative surface when exposed to high temperature particle laden gas flow. The solidification dynamics i.e., the solid and liquid alumina layer growth rate, and the heat transferred to the ablative surface are investigated. A one-dimensional...
    Resource Type:
    Masters Thesis
    Full Text:
    of ablative materials. The model assumes that the particles impact the ablative material and reflect

  • Creep of Gr/BMI composite laminates in compression

    Creator:
    Tyagi, Sanjeev R.
    Abstract:
    The main source of the time-dependent behavior of fiber-reinforced composites is their polymeric matrix, which causes concerns about their long term durability. Although for composites where organic fibers such as Graphite are used, the fibers are also a contributing factor. A composite material may exhibit an appreciable amount of creep,...
    Resource Type:
    Masters Thesis
    Full Text:
    material parameters 73 6.3.2 Creep Predictions using mathametical model 73 6.4 Figures for the predicted

  • Design of composite sandwich panels for a Formula SAE monocoque chassis

    Creator:
    Story, Robert D.
    Abstract:
    Physical testing of composite sandwich panels in three point bending is an increasingly important aspect of qualifying a composite monocoque for Formula SAE competition. Required stiffness and strength values have increased over the past three years, and more of the monocoque's laminates must be tested as well. As a result,...
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.1. Material Properties

  • Thermodynamic correction for salts in variably saturated porous media

    Creator:
    Burns, Erick R.
    Abstract:
    Using thermodynamic principles, the general relationship describing the equilibrium vapor content in the gas phase above a saline liquid and across a curved liquid-gas interface is developed. Since high salt concentration also affects the intensive and extensive liquid properties, it is also necessary to account for these effects in liquid...
    Resource Type:
    Masters Thesis
    Full Text:
    years, and his conceptual model of flow of salts in unsaturated porous media formed the foundation upon

  • The significance and measurement of the Tsai-Wu normal interaction parameter F₁₂

    Creator:
    Hansen, William Christian
    Resource Type:
    Masters Thesis
    Full Text:
    of Material Characteristics 46 5.2.1.2 Biaxial Stress State Control 54 5.2.1.3 Failure Mode 57

  • The effect of void distribution on the Hugoniot state of porous media

    Creator:
    Creel, Emory Myron Willett
    Abstract:
    Shocked porous granular material experiences pressure dependent compaction. D. John Pastine introduced a model in which the degree of compaction is dependent on the pressure induced by the shock wave, the shear strength of the material, and the distribution of void sizes. In the past, the model could only be...
    Resource Type:
    Masters Thesis
    Full Text:
    , D. John Pastine introduced an model that allowed a distribution of void sizes in a porous material

  • Upscaling non-Darcy flow using mixed finite element method

    Creator:
    Garibotti, Cristiano Rodrigues
    Abstract:
    In this paper we develop an upscaling technique for non-Darcy flow in porous media. Non-Darcy model of flow applies to flow in porous media when large velocities occur. The well-posedness results for theory of quasilinear elliptic partial differential equations. To discretize the model we used lowest order Raviart-Thomas mixed finite...
    Resource Type:
    Masters Thesis
    Full Text:
    this paper we develop an upscaling technique for non-Darcy flow in porous media. Non-Darcy model of

  • Indirect parameter identification algorithm in radial coordinates for a porous medium

    Creator:
    Roley, Kenneth L.
    Abstract:
    The decision to bury high level nuclear wastes in deep geological formations led to the study of the Hanford Nuclear Reservation as one of three possible sites for the first nuclear waste repository in the United States. To adequately evaluate the environmental impact of siting nuclear waste repositories in basalt...
    Resource Type:
    Masters Thesis