Showing papers in "Finite Elements in Analysis and Design in 2022"

TL;DR: In this article , the structural responses of several mechanical systems are analyzed using their basic probabilistic characteristics, which have been validated using the Probabilistic semi-analytical approach, and also the crude Monte-Carlo simulation.

TL;DR: In this article , the authors present the implementation of the eXtended Finite Element Method (XFEM) in the general-purpose commercial software COMSOL Multiphysics for the first time.

TL;DR: In this paper , a bi-directional evolutionary structural optimization (BESO) method is proposed to explicitly control the number of tunnels and cavities for both two-and three-dimensional problems.

TL;DR: In this paper , the authors presented a topology optimization of a support structure that improves the heat dissipation in the building process, which is required to successfully create structural parts in the powder bed fusion process for additive manufacturing.

TL;DR: In this article, a SIMP-based robust topology optimization (RTO) design for the negative Poisson ratio (NPR) metamaterials under material uncertainty is investigated, where the weighted mean and variance of the deterministic objective function are utilized to form a robust objective function.

TL;DR: In this paper , the mesoscale conduction-based modeling of powder bed fusion for metallic materials is addressed and the forward Euler (explicit) time integration strategy is thoroughly benchmarked for the first time in a Powder Bed Fusion simulation.

TL;DR: In this article , a SIMP-based robust topology optimization (RTO) design for the negative Poisson ratio (NPR) metamaterials under material uncertainty is investigated, where the weighted mean and variance of the deterministic objective function are utilized to form a robust objective function.

TL;DR: In this paper , the authors proposed a novel efficient numerical approach for the simulation of 3D propagation of non-planar frictional crack under Rolling Contact Fatigue (RCF), which relies on a global-local strategy involving the Semi-Analytical Method (SAM) and the eXtended-Finite Element Method (X-FEM), dedicated to the solving of 3-dimensional crack problems.

TL;DR: In this article , a new acoustic topology optimization methodology with applications on the design of systems composed of rigid and porous materials is presented, where the Bi-directional Evolutionary Structural Optimization (BESO) algorithm is combined with the Virtual Temperature Method to minimize the occurrence of air cavities and rough surfaces inside rigid and porosity domains, hence configuring a multiconstrained optimization approach.

TL;DR: In this article , a three-dimensional permanent magnet synchronous motor model using FEniCSx, a finite element platform tailored for efficient computing and data handling at scale, is presented.

TL;DR: In this paper , a topology optimization method is proposed for transient response problems involving thermoelastic models, where the objective is to optimize the structure considering time-dependent dynamic and thermal loads.

TL;DR: In this paper , a finite element based computational framework is presented to model electrochemical systems by utilizing a weak imposition of Dirichlet boundary conditions for Poisson-Nernst-Planck equations.

TL;DR: In this paper , an advanced fluid-structure interaction (FSI) numerical technique for the simulation of airbag deployment is proposed, where the fluid subproblem, described by weakly compressible Navier-Stokes equations, is solved exploiting the advanced features of the Particle Finite Element Method (PFEM).

TL;DR: In this paper, an advanced fluid-structure interaction (FSI) numerical technique for the simulation of airbag deployment is proposed, where the fluid subproblem, described by weakly compressible Navier-Stokes equations, is solved exploiting the advanced features of the Particle Finite Element Method (PFEM).

TL;DR: In this article , a singularly perturbed reaction-convection-diffusion mathematical model with non-linear coefficients (SP-RCD model) was proposed for the physical modeling of a fuel cell.

TL;DR: In this paper , a shape-optimization technique for the design of mixing elements in single-screw extruders is presented. But the authors only focus on the shape optimization of a single mixing element.

TL;DR: In this paper , a thermodynamically consistent framework for coupled thermo-mechanical simulations for thin-walled structures with the presence of cohesive interfaces is proposed, which is equipped with the mixed Enhanced Assumed Strain (EAS) method to alleviate Poisson and volumetric locking pathologies.

TL;DR: In this paper , a computational framework based on finite element (FE) analysis and machine learning (ML) and genetic algorithm (GA) is described to accurately estimate and minimize the residual stresses in welding.

TL;DR: In this article , a machine learning-based methodology is proposed to combine topology and shape optimization for a more general structural optimization framework that will take advantage of their synergistic combination.

TL;DR: In this article , a 3D mesostructure of concrete in the elastic deformation range is presented, where the computational complexity in analyses of numerical homogenization can be reduced at controlled errors.

TL;DR: In this paper , the authors extended the multi-level hp-approach to the anisotropic refinement of quadrilateral and triangular meshes, and proposed an algorithm based on the H2-split operator.

TL;DR: Numerical examples indicate that optimized periodic cores of sandwiches make the poroelastic material to be distributed evenly within the design domain but slightly scarify the sound insulation performance.

TL;DR: In this article , a coupled phase field model is proposed to simulate fracture in high-speed impact problems with high strain rate with intense shock waves, where the model considers the dynamic finite deformation with both strain hardening and strain rate hardening by the Johnson-Cook plasticity model.

TL;DR: In this article, a coupled phase field model is proposed to simulate fracture in high-speed impact problems with high strain rate with intense shock waves, where the model considers the dynamic finite deformation with both strain hardening and strain rate hardening by the Johnson-Cook plasticity model.

TL;DR: In this paper , the development of Model Order Reduction (MOR) for one-way coupled steady state linear thermo-mechanical problems in a finite element setting is discussed.

TL;DR: In this article , a monolithic numerical scheme for fluid-structure interaction with special interest in thin-walled piezoelectric energy harvesters driven by fluid is proposed.

TL;DR: In this article, a 3D mesostructure of concrete in the elastic deformation range is presented, where the computational complexity in analyses of numerical homogenization can be reduced at controlled errors.

TL;DR: In this article, a numerical approach to study thin sheet metals involved in multiphysics manufacturing processes is presented, where different constitutive models are implemented with a prismatic solid shell element, and a new element assembly technique has been developed to permit the assembly of prismatic elements in a tetrahedral element-based finite element code.

TL;DR: In this paper , three constitutive material models were assigned to the working lining, each corresponding to an irreversible deformation mechanism, and the findings of the three models were compared to understand how each phenomenon affected the lining's and steel shell's stress-strain response.

TL;DR: In this paper , a multiscale time integration method was proposed for the temporal discretization of the laser powder bed fusion (LPBF) problem, where the unique transfer of information through the transmission conditions allows for interaction between the space and time scales.