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Showing papers in "Finite Elements in Analysis and Design in 2009"


Journal ArticleDOI
TL;DR: In this article, a numerical modeling of crack branching in brittle materials using finite elements with embedded strong discontinuities, that is, discontinuity in the displacement field defining the solution of the underlying boundary value problem, is presented.

122 citations


Journal ArticleDOI
TL;DR: In this article, the feasibility of a hybrid scheme using Daubechies wavelet functions and the finite element method to obtain numerical solutions of some problems in structural mechanics is investigated.

96 citations


Journal ArticleDOI
TL;DR: In this paper, a reduced beam and joint modeling approach is presented to analyze and optimize the global bending and torsion modes of a vehicle body. And the results show that the effect of these physical modifications can be accurately predicted with the fast sensitivity analysis.

86 citations


Journal ArticleDOI
TL;DR: In this paper, an engineering approach for the replacement of beam-like structures and joints in a vehicle model is proposed, based on the reduced beam and joint modelling approach, which involves a geometric analysis of beam member cross-sections and a static analysis of joints.

66 citations


Journal ArticleDOI
TL;DR: In this article, the nonlinear free vibration characteristic of laminated composite plate with embedded and/or surface bonded piezoelectric layer is addressed in the framework of a higher order shear deformation theory.

64 citations


Journal ArticleDOI
TL;DR: In this article, a single objective function was proposed to replace the initial multi-objective function and then an optimization model was formulated to improve the mechanical properties of coronary stents.

62 citations


Journal ArticleDOI
TL;DR: In this paper, a spectral plate finite element for analysis of elastic wave propagation in isotropic plate structures is presented, which makes use of on an extended form of the displacement field that enables one to investigate selectively or simultaneously both symmetric and anti-symmetric modes of Lamb waves propagating in plate structures.

62 citations


Journal ArticleDOI
TL;DR: In this paper, a simulation procedure for vehicle-substructure dynamic interactions and wheel movements is presented, where the vehicles and substructure systems interact though wheel-rail interfaces satisfying two compatibilities, i.e., the equilibrium of contact forces including a lateral creep damping force and the geometry relating wheel and rail movements, rail irregularities and local contact deformations.

59 citations


Journal ArticleDOI
TL;DR: In this article, a concurrent multi-scale model of structural behavior (CMSM-of-SB) was developed to analyze the structural behavior and nonlinear damage features of local details in a large complicated structure in order to meet the needs of structural state evaluation and structural deteriorating.

56 citations


Journal ArticleDOI
TL;DR: The computational approach incorporates three-dimensional finite element simulations software Rem3D^(R) and includes an optimization algorithm based on the global response surfaces with the Kriging interpolation and SQP algorithm within an adaptive strategy of the search space to allow the location of the global optimum with a fast convergence.

49 citations


Journal ArticleDOI
TL;DR: In this paper, an experimental analysis and a numerical simulation of the mechanical behavior experienced by a steel rod during multiple-step wire cold-drawing processes is presented, and the results obtained with the simulation are experimentally validated.

Journal ArticleDOI
TL;DR: In this article, the volume fraction optimization of functionally graded composite panels is studied by considering stress reduction and thermo-mechanical buckling, and the optimal designs of FGMs panels are investigated for stress reduction.

Journal ArticleDOI
TL;DR: In this article, the numerical formulation of a family of zero-thickness interface elements developed for the simulation of composite beams with horizontal deformable connection, or interlayer slip is presented.

Journal ArticleDOI
TL;DR: In this paper, an approximation of the XFEM is reformulated based on the concept of the partition of unity finite element method (PUFEM) approximation, which assures the numerical accuracy in the entire domain, for solving the problem of blending elements.

Journal ArticleDOI
TL;DR: In this paper, a design reference for the durability specifications and model updating techniques is given. But, it is only after the prototype has been built and should design problems surface it would be difficult to redesign, as the design by then is finalized.

Journal ArticleDOI
TL;DR: In this paper, the incremental equations of viscoelastic materials with inclusions are formulated in time domain in the framework of the extended finite element method (XFEM), in which the enhancement functions are inserted in the approximation for representing inclusions.

Journal ArticleDOI
TL;DR: In this paper, a relatively simple finite element formulation, applicable to homogenous cubic nonlinear temporal equation (homogenous Duffing equation), was proposed for large amplitude free vibration analysis of uniform, slender and isotropic beams.

Journal ArticleDOI
TL;DR: In this paper, numerical characteristics of triangular and tetrahedral MINI-elements are investigated through their application to forging simulation and the effect of the stabilizer is investigated by solving an axisymmetric upsetting process under various different conditions.

Journal ArticleDOI
TL;DR: In this article, a new method called the random factor method (RFM) for the natural frequency, mode shape and random vibration analysis of stochastic truss structures is presented.

Journal ArticleDOI
TL;DR: Whereas spurious oscillations are known to pollute the standard Galerkin solution unless a very fine mesh is used, the DEM solution is shown to deliver an impressive accuracy at low mesh resolution.

Journal ArticleDOI
TL;DR: A novel topology optimization method for periodic microstructures of electromagnetic materials using the concept of propagation behavior to implement designs that inhibit electromagnetic wave propagation is proposed.

Journal ArticleDOI
TL;DR: In this paper, two finite elements for the static analysis of smart beams with piezoelectric sensors/actuators are presented: ad hoc smart beam element (ADSBE) and variational asymptotic smartbeam element (VASBE) Both elements rely on the computation of the cross-sectional matrices associated with the electromechanical properties of the beam cross-section.

Journal ArticleDOI
TL;DR: In this article, a sensitivity-based parameter updating method was applied and some important issues such as selection of reference data and model parameters, and model updating procedures on the multi-scale model were investigated based on the sensitivity analysis of selected model parameters.

Journal ArticleDOI
TL;DR: In this paper, an irreversible cohesive zone model is proposed to simulate fatigue crack growth in a compact-tension-shear (CTS) specimen with an emphasis on the extrinsic influence of overload for different loading modes.

Journal ArticleDOI
TL;DR: In this paper, the authors derived the finite element of a beam with an arbitrary number of transverse cracks, where each crack is replaced by a corresponding linear rotational spring connecting two adjacent elastic parts.

Journal ArticleDOI
TL;DR: In this article, a new methodology for the geometrically nonlinear analysis of orthotropic membrane structures using triangular finite elements is presented, based on writing the constitutive equations in the principal fiber orientation of the material.

Journal ArticleDOI
TL;DR: In this article, the authors proposed a nonlinear inverse geometry heat transfer problem where the observations are temperatures measured at points on the external boundary and the unknowns are the shape and the location of a cavity inside the problem domain.

Journal ArticleDOI
TL;DR: In this article, wave propagation in functionally graded materials (FGMs) and layered materials is analyzed using space-time discontinuous Galerkin method introduced earlier by the authors [H.G. Aksoy, E. Senocak, 2007].

Journal ArticleDOI
TL;DR: In this paper, the effect of rigid-body motion is shown to be equivalent to a stress transformation and this transformation can be introduced before, after or during integration of the stress-strain constitutive equations.

Journal ArticleDOI
TL;DR: In this article, a geometrically nonlinear finite element (FE) model of nanomaterials with considering surface effects is developed, and a numerical example, analysis of InAs quantum dot (QD) on GaAs (001) substrate, is given to verify the validity of the method and demonstrate surface effects on the stress fields of QDs.