Results 31 to 40 of about 12,689 (224)

Sum factorization techniques in Isogeometric Analysis [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
34 pages, 8 ...
Andrea Bressan, Stefan Takacs
openaire   +3 more sources

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

Stochastic Dynamic Buckling Analysis of Cylindrical Shell Structures Based on Isogeometric Analysis

open access: yesMathematics
In this paper, we extend our previous work on the dynamic buckling analysis of isogeometric shell structures to the stochastic situation where an isogeometric deterministic dynamic buckling analysis method is combined with spectral-based stochastic ...
Qingqing Yu   +5 more
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

The asymptotic concentration approach combined with isogeometric analysis for topology optimization of two-dimensional linear elasticity structures

open access: yesElectronic Research Archive, 2023
We propose an asymptotic concentration approach combined with isogeometric analysis (IGA) for the topology optimization of two-dimensional (2D) linear elasticity structures under the commonly-used framework of the solid isotropic materials and penalty ...
Mingtao Cui   +3 more
doaj   +1 more source

Matrix-free weighted quadrature for a computationally efficient isogeometric $k$-method

open access: yes, 2018
The $k$-method is the isogeometric method based on splines (or NURBS, etc.) with maximum regularity. When implemented following the paradigms of classical finite element methods, the computational resources required by the $k-$method are prohibitive even
Sangalli, Giancarlo, Tani, Mattia
core   +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

A Simple-FSDT-Based Isogeometric Method for Piezoelectric Functionally Graded Plates

open access: yesMathematics, 2020
An efficient isogeometric analysis method (IGA) based on a simple first-order shear deformation theory is presented to study free vibration, static bending response, dynamic response, and active control of functionally graded plates (FGPs) integrated ...
Tao Liu   +4 more
doaj   +1 more source

Mesh grading in isogeometric analysis

open access: yesComputers & Mathematics with Applications, 2015
This paper is concerned with the construction of graded meshes for approximating so-called singular solutions of elliptic boundary value problems by means of multipatch discontinuous Galerkin Isogeometric Analysis schemes. Such solutions appear, for instance, in domains with re-entrant corners on the boundary of the computational domain, in problems ...
Ulrich Langer   +3 more
openaire   +3 more sources

Isogeometric Analysis and Harmonic Stator-Rotor Coupling for Simulating Electric Machines

open access: yes, 2017
This work proposes Isogeometric Analysis as an alternative to classical finite elements for simulating electric machines. Through the spline-based Isogeometric discretization it is possible to parametrize the circular arcs exactly, thereby avoiding any ...
Bontinck, Zeger   +3 more
core   +1 more source

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