90 citations · 305 across the 29 of their papers we have counts for
26 papers · 1 filter
Stabilization techniques for immersogeometric analysis of plate and shell problems in explicit dynamics
Giuliano Guarino, Yannis Voet, Pablo Antolin +1
Finite element plate and shell formulations are ubiquitous in structural analysis for modeling all kinds of slender structures, both for static and dynamic analyses. The latter are…
The Immersed Boundary Conformal Method for Kirchhoff-Love and Reissner-Mindlin shells
Giuliano Guarino, Alberto Milazzo, Annalisa Buffa +1
This work utilizes the Immersed Boundary Conformal Method (IBCM) to analyze Kirchhoff-Love and Reissner-Mindlin shell structures within an immersed domain framework. Immersed bound…
An Interior Penalty coupling strategy for Isogeometric non-conformal Kirchhoff-Love shell patches
Giuliano Guarino, Pablo Antolin, Alberto Milazzo +1
This work focuses on the coupling of trimmed shell patches using Isogeometric Analysis, based on higher continuity splines that seamlessly meet the requirement of Kirchhoff-L…
Reduced Order Modeling based Inexact FETI-DP solver for lattice structures
Thibaut Hirschler, Robin Bouclier, Pablo Antolin +1
This paper addresses the overwhelming computational resources needed with standard numerical approaches to simulate architected materials. Those multiscale heterogeneous lattice st…
Fast parametric analysis of trimmed multi-patch isogeometric Kirchhoff-Love shells using a local reduced basis method
Margarita Chasapi, Pablo Antolin, Annalisa Buffa
This contribution presents a model order reduction framework for real-time efficient solution of trimmed, multi-patch isogeometric Kirchhoff-Love shells. In several scenarios, such…
Stabilized isogeometric formulation of the Stokes problem on overlapping patches
Xiaodong Wei, Riccardo Puppi, Pablo Antolin +1
We present a novel stabilized isogeometric formulation for the Stokes problem, where the geometry of interest is obtained via overlapping NURBS (non-uniform rational B-spline) patc…
A localized reduced basis approach for unfitted domain methods on parameterized geometries
Margarita Chasapi, Pablo Antolin, Annalisa Buffa
This work introduces a reduced order modeling (ROM) framework for the solution of parameterized second-order linear elliptic partial differential equations formulated on unfitted g…
Analysis-aware defeaturing of complex geometries with Neumann features
Pablo Antolin, Ondine Chanon
Local modifications of a computational domain are often performed in order to simplify the meshing process and to reduce computational costs and memory requirements. However, remov…
Reduced order modelling of nonaffine problems on parameterized NURBS multipatch geometries
Margarita Chasapi, Pablo Antolin, Annalisa Buffa
This contribution explores the combined capabilities of reduced basis methods and IsoGeometric Analysis (IGA) in the context of parameterized partial differential equations. The in…
Region extraction in mesh intersection
Pablo Antolin, Annalisa Buffa, Emiliano Cirillo
Region extraction is a very common task in both Computer Science and Engineering with several applications in object recognition and motion analysis, among others. Most of the lite…
DeepBND: a Machine Learning approach to enhance Multiscale Solid Mechanics
Felipe Rocha, Simone Deparis, Pablo Antolin +1
Effective properties of materials with random heterogeneous structures are typically determined by homogenising the mechanical quantity of interest in a window of observation. The…
Robust Numerical Integration on Curved Polyhedra Based on Folded Decompositions
Pablo Antolin, Xiaodong Wei, Annalisa Buffa
We present a novel method to perform numerical integration over curved polyhedra enclosed by high-order parametric surfaces. Such a polyhedron is first decomposed into a set of tri…
Fast and Multiscale Formation of Isogeometric matrices of Microstructured Geometric Models
Thibaut Hirschler, Pablo Antolin, Annalisa Buffa
The matrix formation associated to high-order discretizations is known to be numerically demanding. Based on the existing procedure of interpolation and lookup, we design a multisc…
Quadrature-free Immersed Isogeometric Analysis
Pablo Antolin, Thibaut Hirschler
This paper presents a novel method for solving partial differential equations on three-dimensional CAD geometries by means of immersed isogeometric discretizations that do not requ…
Immersed Boundary-Conformal Isogeometric Method for Linear Elliptic Problems
Xiaodong Wei, Benjamin Marussig, Pablo Antolin +1
We present a novel isogeometric method, namely the Immersed Boundary-Conformal Method (IBCM), that features a layer of discretization conformal to the boundary while employing a si…
Efficient equilibrium-based stress recovery for isogeometric laminated curved structures
Alessia Patton, Pablo Antolin, Josef Kiendl +1
This work focuses on an efficient stress recovery procedure for laminated composite curved structures, which relies on Isogeometric Analysis (IGA) and equilibrium. Using a single e…
Nonlinear static isogeometric analysis of arbitrarily curved Kirchhoff-Love shells
G. Radenković, A. Borković, B. Marussig
The geometrically rigorous nonlinear analysis of elastic shells is considered in the context of finite, but small, strain theory. The research is focused on the introduction of the…
Accurate equilibrium-based interlaminar stress recovery for isogeometric laminated composite Kirchhoff plates
Alessia Patton, Pablo Antolin, John-Eric Dufour +2
In this paper, we use isogeometric Kirchhoff plates to approximate composite laminates adopting the classical laminate plate theory. Both isogeometric Galerkin and collocation form…
Overlapping Multi-Patch Isogeometric Method with Minimal Stabilization
Pablo Antolin, Annalisa Buffa, Riccardo Puppi +1
We present a novel method for isogeometric analysis (IGA) to directly work on geometries constructed by Boolean operations including difference (i.e., trimming), union and intersec…
Adaptive isogeometric analysis on two-dimensional trimmed domains based on a hierarchical approach
Luca Coradello, Pablo Antolin, Rafael Vázquez +1
The focus of this work is on the development of an error-driven isogeometric framework, capable of automatically performing an adaptive simulation in the context of second- and fou…
A simple and effective method based on strain projections to alleviate locking in isogeometric solid shells
Pablo Antolin, Josef Kiendl, Marco Pingaro +1
In this work, we focus on the family of shell formulations referred to as "solid shells", where the simulation of shell-type structures is performed by means of a mesh of 3D solid…
A hierarchical approach to the a posteriori error estimation of isogeometric Kirchhoff plates and Kirchhoff-Love shells
Pablo Antolin, Annalisa Buffa, Luca Coradello
This work focuses on the development of a posteriori error estimates for fourth-order, elliptic, partial differential equations. In particular, we propose a novel algorithm to stee…
Fast assembly of Galerkin matrices for 3D solid laminated composites using finite element and isogeometric discretizations
Pablo Antolin
This work presents a novel methodology for speeding up the assembly of stiffness matrices for laminate composite 3D structures in the context of isogeometric and finite element dis…
Isogeometric Analysis on V-reps: first results
Pablo Antolin, Annalisa Buffa, Massimiliano Martinelli
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 constru…