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RISA Nonlinear Elastic Model for Isotropic Materials With Different Behavior in Tension and Compression
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This note presents a model suitable for the mechanical characterization of isotropic materials with different behavior in tension and compression. The model has been derived from the nonlinear ...
Viscoelastic Analysis of Adhesive Bonded Lap Joints Between Tubes Under Torsion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper a structural analysis of cemented lap joints between tubes under torsion is presented. The behavior of the joints has been evaluated using a linear viscoelastic model of the ...
Predictions of a Turbulent Separated Flow Using Commercial CFD Codes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulations of the turbulent flow in an asymmetric two-dimensional diffuser are carried out using three commercial CFD codes: CFX, Fluent, and Star-CD. A low-Reynolds number k-ε model ...
Metallurgical Phenomena Modeling in Friction Stir Welding of Aluminium Alloys: Analytical Versus Neural Network Based Approaches
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the metallurgical phenomena occurring in friction stir welding processes of AA6082-T6 and AA7075-T6 aluminum alloys are investigated. In particular, to predict the local values of ...
Natural and Forced Conjugate Heat Transfer in Complex Geometries on Cartesian Adapted Grids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The Cartesian incompressible RANS solver with immersed boundaries, IBRANS , recently developed at Stanford, has been extended to include conjugate heat transfer modeling and used for the simulation ...
Empirical Orthogonal Function Analysis of SST Image Series: A Physical Interpretation
Publisher: American Meteorological Society
Abstract: The physical implications underlying the empirical orthogonal function (EOF) decomposition of a series of sea surface temperature (SST) images are discussed. Neglecting vertical advection, and in the hypothesis of slowly ...
Autocorrelation Scales of the SST Distribution and Water Masses Stratification in the Channel of Sicily
Publisher: American Meteorological Society
Abstract: A 1-yr-long series of Advanced Very High Resolution Radiometer sea surface temperature (SST) images is used to study the SST distribution in 1992 over the Channel of Sicily. Time- and spatial scales of the SST are studied ...
Immersed boundary technique for turbulent flow simulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The application of the Immersed Boundary (IB) method to simulate incompressible, turbulent flows around complex configurations is illustrated; the IB is based on the use of non-body conformal ...
High-Order Microplane Theory for Quasi-Brittle Materials with Multiple Characteristic Lengths
Publisher: American Society of Civil Engineers
Abstract: The heterogeneous internal structure of quasi-brittle materials governs several aspects of their behavior, especially in the nonlinear range. Size and spacing of weak spots (e.g., aggregate-matrix interfaces, flaws, and ...
Tetrahedral Finite Element with Rotational Degrees of Freedom for Cosserat and Cauchy Continuum Problems
Publisher: American Society of Civil Engineers
Abstract: This study formulates a simple tetrahedral finite element equipped with rotational degrees of freedom that can be used effectively to solve problems for both Cosserat and Cauchy continua. The formulation makes no assumption ...