Volume 34, 2018

Issue 1, 34, 2018

  • C. Oliveira, J. Lugon Junior, D.C. Knupp, A.J. Silva Neto, A. Prieto-Moreno, O. Llanes-Santiago


    The modeling of adsorption processes appears quite frequently in the chemical industry, petrochemical plants and refineries, for example for separation and purification of mixtures in Simulated Moving Bed (SMB) units. In the mathematical formulation, the accurate determination [...]

  • J. Cargnelutti, V. Galina, E. Kaviski, L.M. Gramani, A.M. Lobeiro


    This paper analyzes the ability of the Lattice Boltzmann method (LBM) with multiple relaxation times (MRT) in the simulation of flow in practical engineering problems. The case study covered refers to the first section of the initiation channel, which is part of the piracema channel, [...]

  • Masoud Abedini, Azrul A. Mutalib, Sudharshan N. Raman, Ebrahim Akhlaghi


    In recent years, many studies have been conducted by governmental and nongovernmental organizations across the world in an attempt to better understand the effect of explosive loads on buildings in order to better design against specific threats. This study is intended to contribute [...]

  • Lin Hua, Fusheng WANG, Zhufeng Yue


    A new damage feature index is presented for the structural health monitoring based on Hilbert-Huang transform (HHT). The energy marginal spectrum of the dynamic signal is used to construct damage characteristic parameter, which can reflect the signal energy variation and benefit [...]

  • A. Plans, D. Alamillo, M. Ferrer, F. Marimon


    This study focuses on the improvement of composite slabs characterization throughout the use of advanced finite elements models. The accurate three-dimensional modelling of a full scale commercial steel sheet and concrete slab geometries enables the analysis of the composite slab [...]

  • I. Derin, Y. Hames


    We suggest a practical method for obtaining the particular solution of non-homogeneous higher order linear differential equations with constant coefficients. The proposed method can be applied directly and simply to such problems. We revealed that is valid for the different type [...]

  • J. Cargnelutti, V. Galina, E. Kaviski, L.M. Gramani, A.M. Lobeiro


    A two-dimensional numerical simulation of the water flow in a rectangular channel with submerged obstacles distributed alternately along its banks is presented. The governing equations of flow are the shallow water equations, which will be solved by the Boltzmann
    lattice method [...]

  • Abstract

    In previous works, the nonlinear localization was first presented and studied in the case of large displacements but only for globally stable structural responses. In this paper, the parallelization of this computational strategy using a Balancing Domain Decomposition by Constrains [...]

  • N. Frechilla, M. Cacho-Pérez, A. Lorenzana


    Civil engineering constructions like pedestrian footbridges are structures increasingly slender, ambitious and complex in which the dynamic effects caused by the loads to which they are subjected (pedestrians) may induce service problems and / or significant or repetitive amplifications [...]

  • W.T. Matias, S.S. da Silva, M.P. Gutiérrez


    The present work uses a co-rotating approach for obtain the internal forces and tangent stiness matrices for three plane beam elements. All of them are based on the same co-rotational approach, and di er by the strain de nition used in the local co-rotational coordinate system. [...]

  • J. Medina, C. Acosta, M. Flota-Bañuelos, R. Peón-Escalante


    In this paper we propose a numerical solution (software simulation) of the "problem of n bodies" that interact gravitationally based on the formulation of Verlet. Additionally a program is designed that graphically shows the results of this numerical solution, which details [...]

  • Abstract

    The overall stability of hydraulic tainter steel gate decrease seriously, and they are caused by improper structure layout of the two-way eccentric compression of struts. Chinese and American specification method, structural mechanics method and finite element method are respectively [...]

  • L.R.B. Rosas, A.R.D. Silva, R.A.M. Silveira


    Structural elements, in many situations, are supported by other surfaces, such as soil, which may offer movement constraints in some directions. Therefore, the static and dynamic analysis of these elements considering their interaction with the soil becomes important in the design [...]

  • Martha Liliana Carreño, N. Lantada, N. Jaramillo


    The urban areas may be exposed to different natural hazards; in order to jointly evaluate the potential risk, this article proposes a methodology for the qualitative assessment of the multi-hazard physical risk by using a fuzzy inference system called MuHRA by its abbreviations [...]

  • S.J. Qiao, H.S. Gao, L. Hua, F.S. Wang


    The finite formulation of the 4-node thin shell element based on Co-rotational (CR) and Timoshenko`s theory was presented for the analysis of laminated composite structures. Based on the Timoshenko`s theory the present thin shell element avoids shear locking behavior, and a bilinear [...]

  • Abstract

    This work shows the variability of the friction angle based on the geological history, over the bearing capacity of shallow foundations. This study was developed through the generation of random fields of friction angle using the matrix decomposition technique for a self-correlated [...]

  • V. Galina, J. Cargnelutti, E. Kaviski, L.M. Gramani, A.M. Lobeiro


    Derived from simplifications of the Saint-Venant equations, the kinematic wave model has the ability to describe the behavior of surface runoff in watersheds. This paper aims to obtain the numerical simulation of the flow routing in a natural watershed, by using lattice Boltzmann [...]

  • Adriano Rodrigues de Melo, L.M. Gramani, E. Kaviski


    This paper presents a new explicit scheme for the solution of shallow water equations in one and two space dimensions, developed from the space-time conservation element and solution element (CE/SE) method. The basis functions used are second-order Taylor expansions in time and [...]

  • Abstract

    This work contrasts numerical methods with algebraic methods. These methods are applied to solve a three dimensional linear differential system with skew symmetric matrices defined in a non- constant differential field. Algorithms and methods of Differential Galois Theory, are [...]

  • Salvador Durazo-Acevedo, A.Y. Aguilar-Bustos, E. Bugarin


    This article describes a control proposal for a formation objective of a robot network in collaborative work with static diffusive coupling using tools derived from graph theory. This proposal is guaranteed by the stability theory of Lyapunov and it is validated with results in [...]

  • S.A. Díaz, L.G.Pujades, A.H.Barbat, Diego Hidalgo, Y.F. Vargas


    The probabilistic analysis of the seismic performance of a structure requires quantifying the uncertainties of the involved variables and parameters, including the seismic action and mechanical properties of its elements. In this article, the seismic performance of high-rise, mid-rise [...]

  • A. Cordero, P. Martí, M. Victoria


    The aim of this paper is to introduce an efficient and accurate new approach called Monte Carlo and Kriging (MCK) to robust topology optimization. The objective is to minimize the expected value of ''compliance'' under concentrated loading uncertainty. The loading [...]

  • Armando Hermosillo-Arteaga, M.P. Romo, R. Magaña, J. Carrera


    In this paper an automatic remeshing algorithm of triangular finite elements is presented. It is well known that the element sizes of the mesh play an important role in modeling the continuum, particularly when notable material properties differences exist in contiguous areas of [...]

  • Eduardo Vega-Alvarado, E. A. Portilla-Flores, German Ardul Munoz-Hernandez, E. Mezura-Montes, G. Sepúlveda-Cervantes, P. Bautista-Camino


    In this paper a novel proposal of a modular hybrid algorithm as a tool for solving real-world engineering problems is presented. A memetic algorithm, MemMABC, is implemented with this approach and applied to solve two case studies of mechanism design, in order to evaluate its efficiency [...]

  • J. J. Estrazulas, Rejane C. Oliveski


    Several residential, commercial and industrial applications have their efficiency increased when a thermal energy storage system is incorporated. The PCMs (Phase Change Materials), due to their high latent heat of fusion, are materials that represent a viable alternative to the [...]

  • Abstract

    The design of reliable structures requires robust tools that allow the analysis of the behavior of the system subject to variability in its resistance and applied loads. For this, there are several formulations and computational algorithms that enable to model the structural behavior [...]

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Volume 32, 2016

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