Results 81 to 90 of about 677 (183)

Isogeometric level-set topology optimization for the design of geometrically nonlinear auxetic metamaterials with AM experimental analysis

open access: yesMaterials & Design
Auxetic metamaterials have garnered significant attention in advanced industrial manufacturing due to their superior mechanical properties, which are characterized by a counterintuitive Negative Poisson’s Ratio (NPR).
Zhen Yang   +4 more
doaj   +1 more source

A Comprehensive Review of Isogeometric Topology Optimization: Methods, Applications and Prospects

open access: yesChinese Journal of Mechanical Engineering, 2020
Topology Optimization (TO) is a powerful numerical technique to determine the optimal material layout in a design domain, which has accepted considerable developments in recent years.
Jie Gao, Mi Xiao, Yan Zhang, Liang Gao
doaj   +1 more source

Enhancing SfePy with Isogeometric Analysis

open access: yesCoRR, 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

Isogeometric modeling and analysis of piezoelectric laminated shells

open access: yesJixie qiangdu
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  

Transfinite Patches for Isogeometric Analysis

open access: yesMathematics
This 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
doaj   +1 more source

ISOGEOMETRIC STRUCTURAL ANALYSIS BASED ON NURBS SHAPE FUNCTIONS

open access: yesFacta 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
doaj  

Systematic design of tetra-petals auxetic structures with stiffness constraint

open access: yesMaterials & Design, 2019
This paper focuses on a systematic isogeometric design approach for the optimal petal form and size characterization of tetra-petals auxetics, considering both plane stress and plane strain conditions.
Zhen-Pei Wang   +4 more
doaj   +1 more source

Isogeometric Analysis

open access: yes, 2010
NURBS (Non Uniform Rational B-Spline) curves and surfaces have been used extensively in Computer Aided Design (CAD) in the last two decades but not in Finite Element Analysis (FEA). Isogeometric analysis [6], introduced in 2005 by Hughes [9] proposes to replace traditional Finite Elements with volumetric NURBS.
Dokken, Tor   +3 more
openaire   +1 more source

Sensitivity Analysis of Underwater Structural-Acoustic Problems Based on Coupled Finite Element Method/Fast Multipole Boundary Element Method with Non-Uniform Rational B-Splines

open access: yesJournal of Marine Science and Engineering
For the direct differentiation technique-based modeling of acoustic fluid–structure interaction and structural-acoustic sensitivity analysis, a coupling algorithm based on the finite element method (FEM) and the fast multipole boundary element method ...
Yonghui Cao   +3 more
doaj   +1 more source

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