Showing papers in "Finite Elements in Analysis and Design in 2011"

TL;DR: The paper gives an overview of the current state-of-the-art of interval techniques available from literature, focussing on methodological as well as practical aspects of the presented methods when their application in an industrial context is envisaged.

TL;DR: Computational results using patient-specific models of cerebral aneurysms indicate that tissue prestress plays an important role in predicting hemodynamic quantities of interest in vascular FSI simulations.

TL;DR: In this article, a catenary cable element for the nonlinear analysis of cable structures subjected to static and dynamic loadings is presented, where the element stiffness matrix and element nodal forces are derived based on exact analytical expressions of elastic catenary.

TL;DR: In this article, a mixed perturbation Monte-Carlo method for static and reliability analysis of structural systems with a mixture of random and interval parameters/loadings is presented, and the lower and upper bounds of probability of failure and reliability of structural elements and systems are investigated based on the first-order secondmoment reliability method and interval approach.

TL;DR: In this article, the nonlinear behaviors of functionally graded material (FGM) plates under transverse distributed load are investigated using a high precision plate bending finite element. And the effective material properties are then evaluated based on the rule of mixture.

TL;DR: In this paper, the authors investigated the limiting shear stress at the tool-chip interface in the case of Titanium alloy (Ti-6Al-4V) dry cutting based on a FE-model.

TL;DR: In this paper, a physically based material model is used to describe the material behavior over a large strain, strain rate and temperature range, which can be used for detailed models but also lumping of welds is possible and often necessary for industrial applications.

TL;DR: In this paper, the authors compared three different beam models and relevant finite elements for the nonlinear analysis of composite members with partial interaction, and showed that the three models present small differences when composite beams dominated by the bending behaviour are considered.

TL;DR: Two numerical examples, namely an antenna reflector and a full-scale satellite model, will be used for demonstrating the applicability of the employed updating procedure to complex aerospace structures.

TL;DR: In this paper, the dynamic performance of a simple catenary and a simple pantograph was simulated and the results of dynamic performance were obtained based on the contact element between pantograph and catenary, and the simulation results showed that the pantograph can run at a speed of 250km/h and the contact loss is detected for the speed larger than 250 km/h.

TL;DR: In this paper, a 3D FE model with general validity for different joint configurations was used to simulate the friction stir welding (FSW) process of butt joints through a single block approach.

TL;DR: In this article, an alternative alpha finite element method (A@aFEM) coupled with a discrete shear gap technique for triangular elements is presented to significantly improve the accuracy of the standard triangular finite elements for static, free vibration and buckling analyses of Mindlin-Reissner plates.

TL;DR: In this article, a weighted least squares (WLS) scheme is proposed to improve the sensitivity of the area-fraction approach to a compliance objective. But, the results of the proposed scheme are limited.

TL;DR: In this paper, the impact of boundary conditions perturbing measurements during dynamic compression performed with a Split Hopkinson Pressure Bar (SHPB) is analyzed. But the analysis is focused on the influence of such effects like friction, inertia, punching, elastic wave dispersion and contact zone shape between the input bar and the projectile on the estimation of dynamic material properties.

TL;DR: In this paper, the Concrete Damage Model was calibrated for a wide range of strong concretes, using triaxial-compression-test data that were obtained from the literature, and adjustment of the parameters of the present model is provided as a function of the unconfined compressive strength of the concrete.

TL;DR: In this article, large amplitude free flexural vibration analysis of shear deformable functionally graded material (FGM) plates is investigated, where the material properties of FGM plates are assumed to vary through the thickness of the plate by a simple power-law distribution in terms of the volume fractions of the constituents.

TL;DR: In this paper, a new BESO method is developed based on the sensitivity number computation utilizing an alternative material interpolation scheme, and a number of examples are presented to demonstrate the capabilities of the proposed method for achieving convergent optimal solutions for structures including selfweight loads.

TL;DR: In this paper, the authors compare the finite element model predictions of the earthquake response of the two historical arch bridges, Osmanli and Senyuva, before and after model calibration.

TL;DR: In this article, the effects of finite element model updating on nonlinear seismic response of arch dam-reservoir-foundation systems were investigated, and the results showed that the finite element modeling has a significant influence on the seismic response.

TL;DR: In this article, a complex Taylor series expansion method (CTSE) is used for shape sensitivity analysis of finite element models, where the real valued coordinates of the mesh are unaltered and no other modifications to the software are required.

TL;DR: In this article, a new material representation model is developed to implicitly describe material usage in a given design domain in terms of one implicit design variable, the iso-line/surface threshold of a characteristic response function.

TL;DR: The proposed method, called Scan&Solve, is a particular implementation of the solution structure method (SSM) that builds on the classical ideas of Kantorovich and Rvachev and can be applied to any geometric model and used within any geometric modeling system.

TL;DR: In this article, the authors present procedures for automatically creating idealised finite element models from the 3D CAD solid geometry of a component, which produce an accurate and efficient analysis model with little effort on the part of the user.

TL;DR: The stress levels within the cancellous and cortical bone for S1 are significantly reduced when compared to scenarios S2 and S3, which will provide an improved understanding of the failure mechanism consequential to the stress distribution characteristics in the mandible during the implantation process.

TL;DR: In this paper, numerical integration of polynomial functions along non-uniform rational B-splines (NURBS) curves and over 2D NURBS-shaped domains is studied.

TL;DR: In this paper, a general mathematical model is developed for the curved panel by introducing the geometric nonlinearity in Green-Lagrange sense based on higher order shear deformation theory.

TL;DR: In this article, an exact finite element model for the linear static analysis of shear-deformable two-layer beams with interlayer slip is presented, where the layers are connected in a discontinuous way and therefore the shear connection is modeled using concentrated spring elements at each connector location.

TL;DR: A multiscale procedure based on finite element simulation and neural network computation was developed to link mesoscopic and macroscopic scales to simulate trabecular bone adaptation process and was able to predict final proximal femur trabECular bone adaption similar to the patterns observed in a human proximal Femur.

TL;DR: In this paper, the results of numerical simulations obtained by the authors and related with the use of single-mode, two-mode and higher order rod behaviour theories are discussed and studied in details.

TL;DR: The results suggest that the technique is effective for generating subject-specific, all-hexahedral meshes and that it may be useful for meshing a variety of anatomical structures across different biomechanical research fields.