Level set-based XFEM modelling of the multi-scale hygro-mechanical behaviour of oak wood using morphological input from [Formula: see text] CT [0.03%]
基于水平集的XFEM模型模拟橡木多尺度水分力学行为并使用[Formula: see text]CT输入形状数据
M A Livani,A S J Suiker,M P F H L van Maris et al.
M A Livani et al.
A computational multi-scale model is presented to predict the macroscopic hygro-mechanical behaviour of oak wood, based on detailed three-dimensional mesoscopic representations of entire oak growth rings obtained by X-ray micro-computed tom...
Yannis Voet,Espen Sande,Annalisa Buffa
Yannis Voet
Mass scaling is widely used in finite element models of structural dynamics for increasing the critical time step of explicit time integration methods. While the field has been flourishing over the years, it still lacks a strong theoretical...
Model and mesh selection from a mCRE functional in the context of parameter identification with full-field measurements [0.03%]
基于全场测量参数识别的mCRE泛函下的模型与网格选择问题研究
Hai Nam Nguyen,Ludovic Chamoin
Hai Nam Nguyen
In this paper, we propose a general deterministic framework to question the relevance, assess the quality, and ultimately choose the features (in terms of model class and discretization mesh) of the employed computational mechanics model wh...
Democratizing biomedical simulation through automated model discovery and a universal material subroutine [0.03%]
通过自动化模型发现和通用材料子例程实现生物医学模拟的民主化
Mathias Peirlinck,Kevin Linka,Juan A Hurtado et al.
Mathias Peirlinck et al.
Personalized computational simulations have emerged as a vital tool to understand the biomechanical factors of a disease, predict disease progression, and design personalized intervention. Material modeling is critical for realistic biomedi...
A comparison of formulations and non-linear solvers for computational modelling of semiconductor devices [0.03%]
半导体器件计算建模的模型与非线性求解器比较研究
Sergi Pérez-Escudero,David Codony,Irene Arias et al.
Sergi Pérez-Escudero et al.
The drift-diffusion formulation, modelling semiconductor materials in terms of carrier densities and electric potential, is considered together with an alternative formulation in terms of dimensionless logarithmic quantities. Stability of b...
A consistent discretization via the finite radon transform for FFT-based computational micromechanics [0.03%]
基于FFT的计算微力学中有限Radon变换的一致离散化方法
Lukas Jabs,Matti Schneider
Lukas Jabs
This work explores connections between FFT-based computational micromechanics and a homogenization approach based on the finite Radon transform introduced by Derraz and co-workers. We revisit periodic homogenization from a Radon point of vi...
Nonlinear dynamic analysis of shear- and torsion-free rods using isogeometric discretization and outlier removal [0.03%]
基于异构网格和离群值剔除的剪切与扭转变形自由杆件非线性动力学分析
Thi-Hoa Nguyen,Bruno A Roccia,René R Hiemstra et al.
Thi-Hoa Nguyen et al.
In this paper, we present a discrete formulation of nonlinear shear- and torsion-free rods introduced by Gebhardt and Romero (Acta Mechanica 232(10):3825-3847, 2021) that uses isogeometric discretization and robust time integration. Omittin...
A finite volume adaptation of beam-to-beam contact interactions implemented for geometrically exact Simo-Reissner beams [0.03%]
适用于几何完整Simo-Reissner梁的线接触相互作用有限体积法适应性研究
Seevani Bali,Željko Tuković,Philip Cardiff et al.
Seevani Bali et al.
This paper presents an adaption of the finite-element based beam-to-beam contact interactions into a finite volume numerical framework. A previous work of the same authors, where a cell-centred based finite volume implementation of geometri...
A maximum-entropy length-orientation closure for short-fiber reinforced composites [0.03%]
短纤维增强复合材料的最大熵长度取向闭式模型
Alok Mehta,Matti Schneider
Alok Mehta
We describe an algorithm for generating fiber-filled volume elements for use in computational homogenization schemes which accounts for a coupling of the fiber-length and the fiber-orientation. For prescribed fiber-length distribution and f...
Imposing Dirichlet boundary conditions directly for FFT-based computational micromechanics [0.03%]
基于FFT的计算微力学中直接施加Dirichlet边界条件的方法
Lennart Risthaus,Matti Schneider
Lennart Risthaus
We discuss how Dirichlet boundary conditions can be directly imposed for the Moulinec-Suquet discretization on the boundary of rectangular domains in iterative schemes based on the fast Fourier transform (FFT) and computational homogenizati...