A simplified Kirchhoff–Love large deformation model for elastic shells and its effective isogeometric formulation

L Leonetti, D Magisano, A Madeo, G Garcea… - Computer Methods in …, 2019‏ - Elsevier
Abstract Isogeometric Kirchhoff–Love elements have received an increasing attention in
geometrically nonlinear analysis of elastic shells. Nevertheless, some difficulties still remain …

A robust penalty coupling of non-matching isogeometric Kirchhoff–Love shell patches in large deformations

L Leonetti, FS Liguori, D Magisano, J Kiendl… - Computer Methods in …, 2020‏ - Elsevier
Abstract Isogeometric Kirchhoff–Love elements have been receiving increasing attention in
geometrically nonlinear analysis of thin shells because they make it possible to meet the C 1 …

An improved isogeometric collocation formulation for spatial multi-patch shear-deformable beams with arbitrary initial curvature

D Ignesti, G Ferri, F Auricchio, A Reali… - Computer Methods in …, 2023‏ - Elsevier
The present paper presents a robust multi-patch formulation based on the isogeometric
collocation (IGA-C) method for the solution of linear, spatial Timoshenko beam structures …

Isogeometric analysis on V-reps: first results

P Antolin, A Buffa, M Martinelli - Computer Methods in Applied Mechanics …, 2019‏ - Elsevier
Inspired by the introduction of Volumetric Modeling via volumetric representations (V-reps)
by Massarwi and Elber in 2016, in this paper we present a novel approach for the …

[HTML][HTML] Vibration analysis for sector cylindrical shells with bi-directional functionally graded materials and elastically restrained edges

M Chen, G **, X Ma, Y Zhang, T Ye, Z Liu - Composites Part B …, 2018‏ - Elsevier
This paper is firstly concerned with natural vibration of sector cylindrical shells with bi-
directional functionally graded (BFG) materials and elastically restrained edges by an …

Fast formation and assembly of finite element matrices with application to isogeometric linear elasticity

RR Hiemstra, G Sangalli, M Tani, F Calabrò… - Computer Methods in …, 2019‏ - Elsevier
Recently, a new formation and assembly strategy was proposed in [1], which resulted in
significant speedups in the formation and assembly time of the Galerkin mass matrix in …

[HTML][HTML] A mixed integration point (MIP) formulation for hyperelastic Kirchhoff–Love shells for nonlinear static and dynamic analysis

L Leonetti, J Kiendl - Computer Methods in Applied Mechanics and …, 2023‏ - Elsevier
We present a mixed integration point (MIP) formulation for hyperelastic isogeometric
Kirchhoff–Love shells. While previous works have proposed mixed integration point …

[ספר][B] IGA: Non-conforming Coupling and Shape Optimization of Complex Multipatch Structures, Volume 1

R Bouclier, T Hirschler - 2022‏ - books.google.com
Isogeometric analysis (IGA) consists of using the same higher-order and smooth spline
functions for the representation of geometry in Computer Aided Design as for the …

Mixed stress-displacement isogeometric collocation for nearly incompressible elasticity and elastoplasticity

F Fahrendorf, S Morganti, A Reali, TJR Hughes… - Computer Methods in …, 2020‏ - Elsevier
We propose a mixed stress-displacement isogeometric collocation method for nearly
incompressible elastic materials and for materials exhibiting von Mises plasticity. The …

Sum factorization techniques in isogeometric analysis

A Bressan, S Takacs - Computer Methods in Applied Mechanics and …, 2019‏ - Elsevier
The fast assembling of stiffness and mass matrices is a key issue in Isogeometric Analysis,
particularly if the spline degree is increased. We present two algorithms based on the idea of …