Zobrazeno 1 - 10
of 216
pro vyhledávání: '"Heltai, Luca"'
Autor:
Ghosh, Abhishek, McBride, Andrew, Liu, Zhaowei, Heltai, Luca, Steinmann, Paul, Saxena, Prashant
Cutting-edge smart materials are transforming the domains of soft robotics, actuators, and sensors by harnessing diverse non-mechanical stimuli, such as electric and magnetic fields. Accurately modelling their physical behaviour necessitates an under
Externí odkaz:
http://arxiv.org/abs/2407.04894
We present a novel approach to perform agglomeration of polygonal and polyhedral grids based on spatial indices. Agglomeration strategies are a key ingredient in polytopal methods for PDEs as they are used to generate (hierarchies of) computational g
Externí odkaz:
http://arxiv.org/abs/2404.18505
This paper presents a numerical method for the simulation of elastic solid materials coupled to fluid inclusions. The application is motivated by the modeling of vascularized tissues and by problems in medical imaging which target the estimation of e
Externí odkaz:
http://arxiv.org/abs/2309.06797
Autor:
Ghosh, Abhishek, McBride, Andrew, Liu, Zhaowei, Heltai, Luca, Steinmann, Paul, Saxena, Prashant
A geometrically exact dimensionally reduced order model for the nonlinear deformation of thin magnetoelastic shells is presented. The Kirchhoff-Love assumptions for the mechanical fields are generalised to the magnetic variables to derive a consisten
Externí odkaz:
http://arxiv.org/abs/2308.12300
In this work, we develop a new algorithm to solve large-scale incompressible time-dependent fluid--structure interaction (FSI) problems using a matrix-free finite element method in arbitrary Lagrangian--Eulerian (ALE) frame of reference. We derive a
Externí odkaz:
http://arxiv.org/abs/2305.08986
We perform a systematic comparison of various numerical schemes for the approximation of interface problems. We consider unfitted approaches in view of their application to possibly moving configurations. Particular attention is paid to the implement
Externí odkaz:
http://arxiv.org/abs/2304.11908
Autor:
Heltai, Luca, Zunino, Paolo
Many physical problems involving heterogeneous spatial scales, such as the flow through fractured porous media, the study of fiber-reinforced materials, or the modeling of the small circulation in living tissues -- just to mention a few examples -- c
Externí odkaz:
http://arxiv.org/abs/2303.10600
In this work we propose a weighted hybridizable discontinuous Galerkin method (W-HDG) for drift-diffusion problems. By using specific exponential weights when computing the $L^2$ product in each cell of the discretization, we are able to mimic the be
Externí odkaz:
http://arxiv.org/abs/2211.02508
We present a Scharfetter-Gummel (SG) stabilization scheme for high-order Hybrid Discontinuous Galerkin (HDG) approximations of convection-diffusion problems. The scheme is based on a careful choice of the stabilization parameters used to define the n
Externí odkaz:
http://arxiv.org/abs/2211.01648
Autor:
Liu, Zhaowei, McBride, Andrew, Ghosh, Abhishek, Heltai, Luca, Huang, Weicheng, Yu, Tiantang, Steinmann, Paul, Saxena, Prashant
The inflation of hyperelastic thin shells is an important and highly nonlinear problem that arises in multiple engineering applications involving severe kinematic and constitutive nonlinearities in addition to various instabilities. We present an iso
Externí odkaz:
http://arxiv.org/abs/2210.15854