Results 91 to 100 of about 23,065,756 (214)
Non‐Newtonian blood flow through multiple tilted ellipsoidal stenoses is numerically investigated using the DeKee‐Turcotte‐Papanastasiou model. The results reveal asymmetric velocity fields, elevated wall shear stress, significant pressure drops, and shear‐dependent thermal effects, highlighting the critical hemodynamic risks associated with eccentric ...
Azad Hussain, Huma Naz
wiley +1 more source
Realization of CAD-integrated shell simulation based on isogeometric B-Rep analysis
An entire design-through-analysis workflow solution for isogeometric B-Rep analysis (IBRA), including both the interface to existing CADs and the analysis procedure, is presented.
T. Teschemacher +6 more
doaj +1 more source
ABSTRACT In this paper, we assess the performance of adaptive and nested factorized sparse approximate inverses as smoothers in multilevel V‐cycles, when smoothing is performed following the Chebyshev iteration of the fourth kind, for the efficient solution of linear systems arising from a conforming discretization of higher‐order partial differential ...
Pablo Jiménez Recio +1 more
wiley +1 more source
A Novel Mixed‐Hybrid, Higher‐Order Accurate Formulation for Kirchhoff–Love Shells
ABSTRACT This paper presents a novel mixed‐hybrid finite element formulation for Kirchhoff–Love shells, designed to enable the use of standard C0$C^0$‐continuous higher‐order Lagrange elements. This is possible by introducing the components of the moment tensor as a primary unknown alongside the displacement vector, circumventing the need for C1$C^1 ...
Jonas Neumeyer, Thomas‐Peter Fries
wiley +1 more source
Isogeometric Analysis of Euler-Bernoulli Beam Element [PDF]
: The Isogeometric analysis is a computational geometry based on a series of polynomial functions (Non-Uniform Rational B-Spline, NURBS) which are assembled to represent the exact geometry. In the Isogeometric analysis, the curvature geometry of the beam
Gan, Buntara Sthenly
core +1 more source
An Efficient Geometrically‐Exact Nonlinear Shell Formulation Based on Rodrigues Parameters
ABSTRACT Thin‐walled structures are part of many engineering applications, as wind turbine blades, pressure vessels, and sheet metal products. A thin‐walled structure is characterized by one significantly smaller dimension compared to the others.
Cinthia A. G. Sousa +3 more
wiley +1 more source
Geometric computing for isogeometric analysis
Isogeometric analysis method is a new approach for physical simulation and analysis based on the exact geometry representation of CAD models directly. From the viewpoint of geometric computing, we present a review on the basic framework of isogeometric ...
Huang, Zhangjin +4 more
core
Stochastic Optimization of Non‐Convex Component Solution Spaces
ABSTRACT In systems engineering, solution spaces provide a practical way to reconcile competing goals by working with sets of good designs instead of point‐based solutions. Earlier contributions, however, were restricted either by limiting the dimensionality per component or, more recently, by constraining these spaces to be convex, which can, in some ...
Eduardo Rodrigues Della Noce +1 more
wiley +1 more source
Isogeometric Analysis Based Shape Optimization. [PDF]
We solve shape optimization problems involving partial differential equations. The latter are discretized and solved using isogeometric analysis. B-splines and non uniform rational B-splines are introduced, along with both theory and implementation ...
Solbakken, Kristin
core +1 more source
Isogeometric modeling and analysis of piezoelectric laminated shells
ObjectiveThe traditional finite element method suffers from geometric inaccuracy and low element order during modeling, which introduces approximation errors when dealing with complex geometric models with curves or curved surfaces.
LIU Tao +4 more
doaj

