An energy-stable mixed formulation for isogeometric analysis of incompressible hyper-elastodynamics [0.03%]
不可压缩超弹性动力学的等几何分析的一种能量稳定的混合形式
Ju Liu,Alison L Marsden,Zhen Tao
Ju Liu
We develop a mixed formulation for incompressible hyper-elastodynamics based on a continuum modeling framework recently developed in [41] and smooth generalizations of the Taylor-Hood element based on non-uniform rational B-splines (NURBS)....
Stefan Schoder,Klaus Roppert,Michael Weitz et al.
Stefan Schoder et al.
In low Mach number aeroacoustics, the known disparity of length scales makes it possible to apply well-suited simulation models using different meshes for flow and acoustics. The workflow of these hybrid methodologies include performing an ...
An indicator-based problem reduction scheme for coupled reactive transport models [0.03%]
基于指示子的耦合反应输运模型问题简化方案
Brubeck Lee Freeman,Peter John Cleall,Anthony Duncan Jefferson
Brubeck Lee Freeman
A number of effective models have been developed for simulating chemical transport in porous media; however, when a reactive chemical problem comprises multiple species within a substantial domain for a long period of time, the computationa...
Two-scale topology optimization in computational material design: An integrated approach [0.03%]
计算材料设计中双尺度拓扑优化的集成方法研究
A Ferrer,J C Cante,J A Hernández et al.
A Ferrer et al.
In this work, a new strategy for solving multiscale topology optimization problems is presented. An alternate direction algorithm and a precomputed offline microstructure database (Computational Vademecum) are used to efficiently solve the ...
The role of Bézier extraction in adaptive isogeometric analysis: Local refinement and hierarchical refinement [0.03%]
Bézier提取在自适应等几何分析中的作用：局部细化和层次细化
R de Borst,L Chen
R de Borst
We present 2 adaptive refinement techniques, namely, adaptive local refinement and adaptive hierarchical refinement, for isogeometric analysis. An element-wise point of view is adopted, exploiting Bézier extraction, which facilitates the i...
Nitsche's Method For Helmholtz Problems with Embedded Interfaces [0.03%]
含嵌入界面的Helmholtz问题的Nitsche方法
Zilong Zou,Wilkins Aquino,Isaac Harari
Zilong Zou
In this work, we use Nitsche's formulation to weakly enforce kinematic constraints at an embedded interface in Helmholtz problems. Allowing embedded interfaces in a mesh provides significant ease for discretization, especially when material...
Classical and all-floating FETI methods for the simulation of arterial tissues [0.03%]
经典的和全浮置的FETI方法在动脉组织模拟中的应用
Christoph M Augustin,Gerhard A Holzapfel,Olaf Steinbach
Christoph M Augustin
High-resolution and anatomically realistic computer models of biological soft tissues play a significant role in the understanding of the function of cardiovascular components in health and disease. However, the computational effort to hand...
High-order space-time finite element schemes for acoustic and viscodynamic wave equations with temporal decoupling [0.03%]
具有时间解耦的高阶时空有限元方案用于声学和粘弹波方程
H T Banks,Malcolm J Birch,Mark P Brewin et al.
H T Banks et al.
We revisit a method originally introduced by Werder et al. (in Comput. Methods Appl. Mech. Engrg., 190:6685-6708, 2001) for temporally discontinuous Galerkin FEMs applied to a parabolic partial differential equation. In that approach, block...
Asynchronous collision integrators: Explicit treatment of unilateral contact with friction and nodal restraints [0.03%]
异步碰撞积分器：显式处理含摩擦的单边接触与节点约束
Sebastian Wolff,Christian Bucher
Sebastian Wolff
This article presents asynchronous collision integrators and a simple asynchronous method treating nodal restraints. Asynchronous discretizations allow individual time step sizes for each spatial region, improving the efficiency of explicit...
Matched interface and boundary (MIB) for the implementation of boundary conditions in high-order central finite differences [0.03%]
匹配接口和边界(MIB)在高阶中心差分法实现中的应用
Shan Zhao,G W Wei
Shan Zhao
High-order central finite difference schemes encounter great difficulties in implementing complex boundary conditions. This paper introduces the matched interface and boundary (MIB) method as a novel boundary scheme to treat various general...