Showing papers in "Finite Elements in Analysis and Design in 2016"

TL;DR: A new approach for numerically solving flow in Discrete Fracture Networks (DFN) is developed by means of the Virtual Element Method (VEM), based on a generalization of globally conforming Finite Elements for polygonal meshes that avoids complications arising from the meshing process.

TL;DR: In this article, a three-dimensional finite element model was developed to investigate the structural behavior of steel-concrete composite beams with HSFGB shear connectors, which can be easily unbolted during deconstruction and structural modification.

TL;DR: This work derives a fracture-controlled staggered solution procedure by systematic decoupling of the path-following controlled elasticity and phase-field problems in quasi-static fracture propagation simulations, which can include snap-back phenomena.

TL;DR: In this paper, an ad hoc moving heat source is proposed to simulate the EB power surface distribution and the corresponding absorption within the work-piece thickness, where both heat conduction and heat radiation models are considered to dissipate the heat through the boundaries of the component.

TL;DR: In this article, an experimental and numerical investigation on surface deformation and energy absorption of aluminum honeycomb sandwich panels subjected to low-velocity impact is undertaken, where a high-speed camera system is employed to record the acceleration attenuation process of the impactor, and a projection profile system is introduced to measure the surface profiles of the panel and the depth of the ultimate indentation.

TL;DR: In this article, the authors evaluated the nonlinear dynamic behavior of a 5MW NREL wind turbine considering different earthquake and wind intensities using a newly developed finite element model, and the results of fragility analysis was performed for four limit states which are top displacement, top rotation, material yielding, and total collapse.

TL;DR: In this article, a multi-physics model for multi-frequency induction hardening in 3D is presented, where the balance of momentum is used to determine internal stresses and deformations arising from thermoelasticity and transformation induced plasticity.

TL;DR: The isogeometric topology optimization of shell structures is proposed and the final design derived by the present method can be directly communicated with CAD systems without any additional treatments.

TL;DR: In this article, a methodology based on statistical analysis and numerical experiments is proposed to determine the size of the representative volume element (RVE) for heterogeneous amorphous polymers subjected to finite deformations.

TL;DR: In this paper, the authors developed a new numerical cutting model that includes fluid structure interaction and to take into account heat transfer between the water-jet, the workpiece and the chip.

TL;DR: In this article, the authors presented the bulk surface finite element method (BSFEM) for solving coupled systems of bulk-surface reaction-diffusion equations (BSRDEs) on stationary volumes.

TL;DR: In this article, a 3D random mesoscale model of asphalt concrete is presented and the volume elements of a linear elastic composite are determined numerically for a variation of parameters in terms of a tolerable amount of statistical scatter.

TL;DR: An easy treatment of (multi-level) hanging nodes in hp -finite elements in two dimensions that achieves nearly the same properties as the conventional approach in all investigated examples and provides an excellent trade-off between implementational complexity and solvability.

TL;DR: In this paper, a beam-to-column composite semi-rigid joint with deconstructable post-installed friction-grip bolted shear connectors and grade S690 high strength steel flush end plates is investigated.

TL;DR: In this article, a voronoi finite element model that considers size effects of material was developed for micro-deep drawing of circular cups and the surface roughness information was assigned to this model through different elemental thickness distributions.

TL;DR: In this paper, a nonlocal extension of the CDPM2 is proposed, which provides mesh independent load-displacement curves and strain profiles, whereas the peak loads and strain profile obtained with the crack band model depend on the element size.

TL;DR: A derivative-free level- set method using pattern search and topology description function, i.e., level-set function, which has the ability to overcome the drawbacks of non-gradient topology optimization methods that appeared in the literature.

TL;DR: In this article, a residual-stress dependent nonlinear elastic constitutive law is implemented in a finite element code for the torsion of a circular cylindrical tube subject to radial and circumferential residual stresses.

TL;DR: Three versions of the DG method in which the approximation is constructed using sets of arbitrary basis functions are under consideration and the analysed approach does not require definition of nodes or construction of shape functions.

TL;DR: In this paper, a coupled continuous and discontinuous constitutive model for concrete elements is presented. But the model does not capture the width of a localized zone and to obtain mesh-independent results, both models have a characteristic length of micro-structure by applying a non-local theory of an integral format.

TL;DR: In this article, a method is presented to automatically derive numerically efficient closed-form representation of an arbitrary matrix function and its first and second derivatives for 3?3 matrices with real eigenvalues.

TL;DR: In this article, the authors compared the asymptotic numerical method to some representative algorithms such as nonlinear Arnoldi method, non-linear Jacobi-Davidson method, inverse iteration and iterative shift-invert method.

TL;DR: This paper presents a non-local damage model in combination with a mesh-adaptive finite element technique that can help automatize the analysis of progressive fracture problems in an efficient manner.

TL;DR: In this article, a reduced-order model for buckling analysis of geometrically nonlinear structures is proposed, where the authors adopt the co-rotational formulation to facilitate these complex differentiations.

TL;DR: In this article, a method for stabilizing the mean-strain hexahedron was described, where the stabilization energy was assumed to be generated by a modified constitutive matrix based on the spectral decomposition.

TL;DR: In this paper, a robust computational procedure is proposed for the finite element solution of elasto-plastic boundary value problems in the structural analysis of ductile materials based on a return mapping algorithm.

TL;DR: In this article, a multi-scale Finite Element Microstructure MEsh-free fracture model has been applied to simulate the effect of microstructure on the development of discontinuous cracking and damage coalescence during the Hertzian indentation of a SiC-SiC fiber composite.

TL;DR: In this paper, a 3D mixed finite element is proposed and tested in elasto-plastic and limit analysis problems, where a composite tetrahedron mesh is assumed over the domain and the displacement field is described by a quadratic interpolation, while the stress field is represented by a piece-wise constant description.

TL;DR: In this paper, a new topology optimization algorithm based on the bi-directional evolutionary structural optimization (BESO) method was proposed to design photonic crystals with broad all-angle negative refraction (AANR) frequency range.

TL;DR: The performance and accuracy of the tetrahedral FCM is demonstrated using two examples and it is demonstrated that both the FCM and the FEM achieve the same rates of convergence.