Results 41 to 50 of about 25,253,049 (241)

Vibration Analysis of an Imperfect Single-Layer Graphene Sheet using Quasi-3d Theory and Isogeometric Approach [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2023
In this study, the size-dependent free vibration analysis of a geometrically imperfect single-layer graphene sheet (SLGS) is studied by an isogeometric approach along with the quasi-3D shear and normal deformation theory.
Heidar Fazeli, Armen Adamian, Ahmad Hosseini-Sianaki   +2 more
doaj   +1 more source

Dynamic and static isogeometric analysis for laminated Timoshenko curved microbeams

Engineering analysis with boundary elements, 2021
An effective computational approach that can simultaneously deal with several complexities in geometries, material properties, and size effects is of non-trivial yet important tasks for the design and optimization of device components in micro- and nano ...
Hui Hu, Tiantang Yu, L. Lich, T. Bui
semanticscholar   +1 more source

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

, 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, Corno, Jacopo, De Gersem, Herbert, Schöps, Sebastian   +3 more
core   +1 more source

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

Mathematics
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, Xiaojun Liu, Fei Xue, Zhenyu Guan, Yujie Guo, Jianjiang Zeng   +5 more
doaj   +1 more source

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

Results 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, Guoyong Jin, Mingfei Chen, Tiangui Ye, Zhigang Liu   +4 more
doaj   +1 more source

Unstructured spline spaces for isogeometric analysis based on spline manifolds

, 2015
Based on spline manifolds we introduce and study a mathematical framework for analysis-suitable unstructured B-spline spaces. In this setting the parameter domain has a manifold structure, which allows for the definition of function spaces that have a ...
Sangalli, Giancarlo, Takacs, Thomas, Vázquez, Rafael   +2 more
core   +1 more source

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

Crystals, 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, Zhibing Xiao, Jingang Liu, Zixu Xia, Shuitao Gu   +4 more
doaj   +1 more source

Mesh grading in isogeometric analysis

Computers & 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, Angelos Mantzaflaris, Stephen E. Moore, Ioannis Toulopoulos   +3 more
openaire   +3 more sources

Higher order phase-field modeling of brittle fracture via isogeometric analysis

Engineering computations
The evolution of brittle fracture in a material can be conveniently investigated by means of the phase-field technique introducing a smooth crack density functional. Following Borden et al.
L. Greco, A. Patton, M. Negri, A. Marengo, U. Perego, A. Reali   +5 more
semanticscholar   +1 more source

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

Geoscientific 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