Results 101 to 110 of about 4,131 (216)
Variable Density Interpolation for Dynamic Topology Optimization
International Journal for Numerical Methods in Engineering, Volume 126, Issue 19, 15 October 2025.ABSTRACT Topology optimization problems are usually nonconvex, and different optimization paths often lead to different local optima. This phenomenon is particularly pronounced in dynamic situations, where it typically causes grayscale. The occurrence of grayscale is greatly dependent on material parameters such as stiffness and density. In particular,
Xinlin Xu +4 more
wiley +1 more source
Enhancing SfePy with Isogeometric Analysis
CoRR, 2014 In the paper a recent enhancement to the open source package SfePy (Simple Finite Elements in Python, http://sfepy.org) is introduced, namely the addition of another numerical discretization scheme, the isogeometric analysis, to the original implementation based on the nowadays standard and well-established numerical solution technique, the finite ...
openaire +2 more sources
International Journal for Numerical Methods in Engineering, Volume 126, Issue 19, 15 October 2025.ABSTRACT The classical material point method (MPM) is particularly suitable for large deformation problems with surface contact, but its capability to capture size effects remains relatively limited. In order to capture the size effect widely observed in solid materials as well as to eliminate mesh dependency, we present an F‐bar B‐spline MPM for ...
Ran Ma +4 more
wiley +1 more source
This study evaluates the stability of rectangular tunnels in cohesive-frictional soils under surcharge loading using a combination of IsoGeometric Analysis and artificial neural networks. A dataset of 12,946 samples was generated automatically to analyze
Nguyen, Tan +4 more
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Isogeometric Analysis Based Shape Optimization. [PDF]
, 2015 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
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Isogeometric modeling and analysis of piezoelectric laminated shells
Jixie qiangduObjectiveThe 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
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Transfinite Patches for Isogeometric Analysis
MathematicsThis paper extends the well-known transfinite interpolation formula, which was developed in the late 1960s by the applied mathematician William Gordon at the premises of General Motors as an extension of the pre-existing Coons interpolation formula. Here,
Christopher Provatidis
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Isogeometric Analysis of Euler-Bernoulli Beam Element
, 2018 : 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
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Optimal-order isogeometric analysis and isogeometric collocation at Galerkin superconvergent points [PDF]
, 2016 Isogeometric analysis with full quadrature yields optimal convergence rates but require higher computational cost than necessary for splines of maximal continuity.
Hansen, Silje Irene
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ISOGEOMETRIC STRUCTURAL ANALYSIS BASED ON NURBS SHAPE FUNCTIONS
Facta Universitatis. Series: Mechanical Engineering, 2014 Finite element method (FEM) is a tool that is mostly used for the structural analysis. The method is based upon approximation of the actual geometry and displacement field of the structure over the finite element domain.
Predrag Milić, Dragan Marinković
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