Results 1 to 10 of about 5,264 (176)

Contact Modelling in Isogeometric Analysis: Application to Sheet Metal Forming Processes [PDF]

open access: yes, 2016
Isogeometric Analysis (IGA) has been growing in popularity in the past few years essentially due to the extra exibility it introduces with the use of higher degrees in the basis functions leading to higher convergence rates.
Austin Cottrell J.   +4 more
core   +1 more source

Isogeometric Fast Multipole Boundary Element Method Based on Burton-Miller Formulation for 3D Acoustic Problems

open access: yesArchives of Acoustics, 2019
An isogeometric boundary element method is applied to simulate wave scattering problems governed by the Helmholtz equation. The NURBS (non-uniform rational B-splines) widely used in the CAD (computer aided design) field is applied to represent the ...
Leilei CHEN   +4 more
doaj   +1 more source

Upper bound limit analysis of plates using a rotation-free isogeometric approach [PDF]

open access: yes, 2014
International audienceThis paper presents a simple and effective formulation based on a rotation-free isogeometric approach for the assessment of collapse limit loads of plastic thin plates in bending.
Bleyer, Jérémy   +3 more
core   +4 more sources

A Physical Process Driven Digital Terrain Model Generating Method Based on D-NURBS

open access: yesIEEE Access, 2020
Airborne light detection and ranging (LiDAR) technology is becoming the primary method for generating high-resolution digital terrain models (DTMs), which is essential for commercial and scientific uses.
Danlei Ye   +6 more
doaj   +1 more source

A New Path Generation Algorithm Based on Accurate NURBS Curves

open access: yesInternational Journal of Advanced Robotic Systems, 2016
The process of finding an optimum, smooth and feasible global path for mobile robot navigation usually involves determining the shortest polyline path, which will be subsequently smoothed to satisfy the requirements. Within this context, this paper deals
Sawssen Jalel   +2 more
doaj   +1 more source

Geometrically nonlinear isogeometric analysis of laminated composite plates based on higher-order shear deformation theory

open access: yes, 2014
In this paper, we present an effectively numerical approach based on isogeometric analysis (IGA) and higher-order shear deformation theory (HSDT) for geometrically nonlinear analysis of laminated composite plates.
Lee, Jaehong   +4 more
core   +1 more source

Efficient Culling Techniques for Interactive Deformable NURBS Surfaces on GPU [PDF]

open access: yes, 2016
[Abstrtact] InfoValue: NURBS (Non-uniform rational B-splines) surfaces are the standard freeform representation in Computer-Aided Design (CAD) applications.
Amor, Margarita   +3 more
core   +1 more source

An adaptive, hanging-node, discontinuous isogeometric analysis method for the first-order form of the neutron transport equation with discrete ordinate (SN) angular discretisation [PDF]

open access: yes, 2017
In this paper a discontinuous, hanging-node, isogeometric analysis (IGA) method is developed and applied to the first-order form of the neutron transport equation with a discrete ordinate (SN) angular discretisation in two-dimensional space.
Eaton, M, Kophazi, J, Owens, A, Welch, J
core   +1 more source

An isogeometric SGBEM for crack problems of magneto-electro-elastic materials

open access: yesVietnam Journal of Mechanics, 2017
The isogeometric symmetric Galerkin boundary element method is applied for the analysis of crack problems in two-dimensional magneto-electro-elastic domains. In this method, the field variables of the governing integral equations as well as the geometry
Han Duc Tran, Binh Huy Nguyen
doaj   +1 more source

3D nurbs-enhanced finite element method [PDF]

open access: yes, 2009
An improvement of the classical finite element method is proposed in [1], the NURBS-Enhanced Finite Element Method (NEFEM). It is able to exactly represent the geometry by means of the usual CAD description of the boundary with Non-Uniform Rational B ...
Fernández Méndez, Sonia   +2 more
core   +1 more source

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