Results 41 to 50 of about 23,065,756 (214)

image2iga: A JIT-compiled Python framework for image-to-isogeometric analysis via spline template fitting

open access: yesSoftwareX
We present an open-source Python framework for image-to-isogeometric analysis based on spline template fitting. The framework targets the construction and simulation of specimen-specific models from volumetric images while maintaining the same CAD ...
D. Bichet   +3 more
doaj   +1 more source

Isogeometric analysis of the lithosphere under topographic loading: Igalith v1.0.0 [PDF]

open access: yesGeoscientific Model Development
This paper presents methods from isogeometric finite-element analysis for numerically solving problems in geoscience involving partial differential equations.
R. Rosandi, Y. Rosandi, B. Simeon
doaj   +1 more source

Variational Formulations and Isogeometric Analysis of Timoshenko–Ehrenfest Microbeam Using a Reformulated Strain Gradient Elasticity Theory

open access: yesCrystals, 2022
This paper presents a novel non-classical Timoshenko–Ehrenfest beam model based on a reformulated strain gradient elasticity theory. The strain gradient effect, couple stress effect, and velocity gradient effect for vibration are included in the new ...
Shuohui Yin   +4 more
doaj   +1 more source

BDDC Deluxe for Isogeometric Analysis [PDF]

open access: yes, 2016
The main goal of this paper is to design, analyze, and test a BDDC (Balancing Domain Decomposition by Constraints, see [12, 23]) preconditioner for Isogeometric Analysis (IGA), based on a novel type of interface averaging, which we will denote by deluxe scaling, with either full or reduced set of primal constraints.
L. Beirão da Veiga   +4 more
openaire   +3 more sources

Parallel Refined Isogeometric Analysis in 3D [PDF]

open access: yesIEEE Transactions on Parallel and Distributed Systems, 2019
We study three-dimensional isogeometric analysis (IGA) and the solution of the resulting system of linear equations via a direct solver. IGA uses highly continuous $C^{p-1}$ basis functions, which provide multiple benefits in terms of stability and convergence properties. However, smooth basis significantly deteriorate the direct solver performance and
Leszek Siwik   +5 more
openaire   +3 more sources

Isogeometric Analysis of Arbitrarily Shaped Structures: A Numerical Approach Based on the Strong Formulation

open access: yes, 2017
A numerical solution is sought for many engineering applications since it is not always possible to achieve analytical results. This statement is even more truthful when the reference domain of the problem under consideration is characterized by an ...
TORNABENE, FRANCESCO   +2 more
core   +2 more sources

Local and Global Approaches to Fracture Mechanics Using Isogeometric Analysis Method

open access: yesJournal of Applied and Computational Mechanics, 2015
In the present research, implementations of different computational geometry technologies in isogeometric analysis framework for computational fracture mechanics are investigated.
Abdolghafoor Khademalrasoul, Reza Naderi
doaj   +1 more source

Isogeometric free vibration of sector cylindrical shells with carbon nanotubes reinforced and functionally graded materials

open access: yesResults in Physics, 2020
An isogeometric numerical procedure based on non-uniform rational B-splines is applied to solve the free vibration of carbon nanotubes reinforced and functionally graded material sector cylindrical shells.
Yantao Zhang   +4 more
doaj   +1 more source

Computational Cardiovascular Medicine With Isogeometric Analysis

open access: yesJournal of Advanced Engineering and Computation, 2022
Isogeometric analysis (IGA) brought superior accuracy to computations in both fluid and solid mechanics. The increased accuracy has been in representing both the problem geometry and the variables computed. Beyond using IGA basis functions in space, with
Kenji Takizawa   +4 more
doaj   +1 more source

Sensitivity analysis of non-uniform rational B-splines–based finite element/boundary element coupling in structural-acoustic design

open access: yesFrontiers in Physics
For the purpose of modeling the acoustic fluid-structure interaction using direct differentiation method and conducting a structural-acoustic sensitivity analysis, a coupling approach based on the finite element method and the fast multipole boundary ...
Yanming Xu, Sen Yang, Sen Yang
doaj   +1 more source

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