Results 31 to 40 of about 3,646 (187)

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

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

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

Mathematics, 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, Chaodong Li, Chao Wang, Joel Weijia Lai, Kang Hao Cheong   +4 more
doaj   +1 more source

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

Frontiers 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

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

BDDC Deluxe for Isogeometric Analysis [PDF]

, 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, L.F. Pavarino, S. Scacchi, O. B. Widlund, S. Zampini   +4 more
openaire   +3 more sources

Local and Global Approaches to Fracture Mechanics Using Isogeometric Analysis Method

Journal 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

Towards the isogeometric aero-engine

Results in Engineering, 2023
Creating very detailed finite element models of aero-engines is a very time-consuming process especially if structured meshes have to be generated for thousands of parts.
Markus Kober, Bernd Beirow, Marcus Meyer, Kai Singh   +3 more
doaj   +1 more source