Showing papers in "Finite Elements in Analysis and Design in 2010"

TL;DR: In this article, the authors present two 3D anisotropic formulations of mesh gradation, where the metric at each point defines a well-graded smooth continuous metric field over the domain.

TL;DR: In this paper, single and triple-cell hexagonal columns filled with aluminum foams were optimized for maximum specific energy with simultaneous consideration of section geometry, tube thickness, and foam density, and the effects of crushing forces on column designs were analyzed by comparing optimum solutions with and without constraints on the mean crushing forces.

TL;DR: This article presents recent developments on constrained Delaunay tetrahedralizations of piecewise linear domains and surveys various related results and detail two core algorithms that have provable guarantees and are amenable to practical implementation.

TL;DR: In this article, a multi-node sliding cable element was formulated for the analysis of cable structures with cables threading through a number of joints and being able to slide inside them.

TL;DR: A method that predicts coronary flow and pressure of three-dimensional epicardial coronary arteries by representing the cardiovascular system using a hybrid numerical/analytic closed loop system and lumped parameter models for the left and right sides of the heart is developed.

TL;DR: In this paper, a novel method based on mechanical/structural principles is introduced for free vibration analysis of arbitrarily tapered Timoshenko beams in preference to primarily mathematically based methodologies.

TL;DR: In this paper, a coupled ES-FEM/FEM method for structural-acoustic problems is presented, in which the ES-fEM and FEM models are used to simulate the structure and the fluid, respectively.

TL;DR: This paper studies the fully discrete mixed finite element methods for quadratic convex optimal control problem governed by parabolic equations using usual mixed finite elements and derives a priori error estimates both for the coupled state and the control approximation.

TL;DR: In this paper, an adaptive mesh control procedure suitable for use with high-order finite element methods to solve viscous flow problems is presented, which accounts for the need to use curved mesh edges and faces to maintain the required geometric approximation and mesh gradation within the boundary layers.

TL;DR: In this article, an advanced finite element (FE) formulation for the analysis of multilayered structures in the case of multifield problems has been presented, where four fields are considered: mechanical, thermal, electrical and magnetic.

TL;DR: In this article, the dynamic interaction that exists between the liquid and elastic tank-baffle system has been considered to evaluate the coupled response of liquid and tank baffle system using the finite element method.

TL;DR: The methods presented provide coarsening while maintaining conforming all-quadrilateral and all-hexahedral meshes, and are not dependent on reversing a previous refinement.

TL;DR: In this article, the capability of the overlay model, originally proposed by Austrell, for the prediction of the hysteretic behavior in industrial applications (design of rubber components) was demonstrated.

TL;DR: The layered elastic solid method (LESM) as discussed by the authors, a modified ESM, was put forward in the present study, where the computational zone is divided into several layers and material properties of these layers are changed with mesh deformation.

TL;DR: In this paper, an improved eight noded layered shell finite element formulation for piezothermoelastic analysis of smart fiber reinforced polymer (FRP) composite shell structures with bonded piezoelectric sensors and actuators is presented.

TL;DR: In this paper, the macroscopic elastic behavior of hollow microsphere filled composites, collectively known as syntactic foams, was studied using analytical and numerical methods, and the applicability of unit cell FE methods in the estimation of effective elastic properties of the syntactic foam was assessed.

TL;DR: In this article, an efficient method for buckling and free vibration analysis of cyclically repeated space truss type structures is presented, where stiffness, geometric stiffness and mass matrices are expressed in cylindrical coordinate system and this leads to the formation of a special pattern for the related matrices of entire of such structures.

TL;DR: In this paper, an extension of the evolutionary structural optimization (ESO) method is proposed for 3D compliant mechanism design. But, the proposed procedure is based on an extension to several optimum material distribution problems, but not for three-dimensional compliant mechanisms optimization.

TL;DR: In this article, a fully coupled numerical methodology for the anisotropic sheet metal cutting processes' simulation using the FEM is presented, which accounts for the non linear isotropic and kinematic hardening strongly coupled with the deformation under large plastic deformation.

TL;DR: Based on B-spline wavelet on the interval (BSWI) and the generalized variational principle, multivariable wavelet finite elements were proposed in this paper to improve the accuracy of moment and bending strain efficiently.

TL;DR: A recently developed topology optimization algorithm, design space optimization (DSO), is applied to bone remodeling simulation in order to determine trabecular architecture in human proximal femur with higher computational efficiency.

TL;DR: A series of versatile transition elements based on the hybrid stress approach is developed, and the size of elements generated by the 1-irregular mesh restriction is compared with the predicted element size.

TL;DR: In this article, the simulation of the deep drawing process and splitting of an aluminum alloy AA5754-O ring is performed using both the finite element code ABAQUS and the in-house code DD3IMP.

TL;DR: In this paper, the mesh-dependence of non-linear mechanical finite element analysis is analyzed and the best results are obtained for mixed meshes and hexahedron-only meshes.

TL;DR: In this paper, a compliant mechanism under pressure input is presented by treating void regions with incompressible hydrostatic fluid, where the mean compliance by the input pressure is considered, and displacement-based nonconforming finite elements are employed for both two and three-dimensional problems.

TL;DR: In this article, an improved adaptive remeshing process that allows the accurate control of the numerical solution of a partial differential 3D vectorial equation is introduced, which is applied to compute the electromagnetic intensity around a metallic sphere.

TL;DR: In this article, an accurate and efficient artificial neural network (ANN) based GA for estimating the reliability of long span suspension bridges is presented, where the training datasets for establishing an ANN model are generated by uniform design method and are distributed uniformly over the entire design space.

TL;DR: In this paper, two sets of lateral vibration equations for a spinning axially loaded twisted Timoshenko beam have been studied, where the axial load is assumed to be normal to the shear force and tangential to the axis of the beam, respectively.

TL;DR: In this paper, a modified Allman's triangular planar element with drilling degree of freedom (DOF) was proposed, which has no spurious energy mode and can correctly carry over the twist moment to the other kinds of element at nodes.

TL;DR: In this article, the authors present a flexible 1D frame element that captures material and geometrical nonlinearities by decomposing the total strain to elastic and inelastic components.