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Lucia Lottici (University of Pisa)04/06/2026, 14:00MS16 - Advanced FEM Techniques with Engineering Applications
The Finite Element Method (FEM) is one of the most powerful stretegies to solve boundary value problems in solid mechanics. It comes out, however, not without drawbacks, especially when dealing with complex geometries and discontinuities. Over time, several advanced FEMs have been developed to overcome the aforementioned limitations by eliminating or reducing the rigid reliance on the finite...
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Alessandro Mastrofini (Multiscale and Multiphysics Mechanics Group (M2M), Department of Civil Engineering and Computer Science Engineering – University of Rome Tor Vergata)04/06/2026, 14:15MS16 - Advanced FEM Techniques with Engineering Applications
We introduce a numerical framework for moving-interface problems that integrates the Virtual Element Method (VEM) [1] within an immersed-boundary-type strategy [2,3]. In the proposed approach, the interface is represented in a Lagrangian manner and evolves within a fixed Eulerian finite element mesh. As the interface moves, it cuts the background structured grid, generating arbitrary polygonal...
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Davide Collato (Politecnico di Torino)04/06/2026, 14:30MS16 - Advanced FEM Techniques with Engineering Applications
Exterior problems in unbounded domains play a central role in the study of wave propagation, particularly in the modeling of scattering phenomena generated by obstacles represented by bounded regions. We focus on a three-dimensional exterior problem for the Helmholtz equation, endowed with Dirichlet boundary conditions on the surface of the obstacle and a suitable radiation condition at...
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Pinel Getu Cherent (University of Pisa)04/06/2026, 14:45MS16 - Advanced FEM Techniques with Engineering Applications
Conventional design practice for reinforced concrete (RC) floor slabs employs linear elastic analysis, with nonlinear and time-dependent behaviors addressed through stiffness reduction factors applied post-analysis. [Creep and shrinkage][1] — two of the most significant time-dependent concrete properties — are conventionally accounted for at the Serviceability Limit State (SLS) through...
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Lahouaria Errouane (Laboratoire Structure De Composite et Matériaux innovants. Département de Génie Maritime, Faculté de Génie mécanique, BP 1505 El M’naouer, USTO, Oran, Algérie.)04/06/2026, 15:00MS16 - Advanced FEM Techniques with Engineering Applications
A critical strength criterion for stiffened thin plates, such as ship hulls, is their ability to resist buckling. A ship is continuously supported by the buoyant volume of the hull, which changes under wave action and causes varying magnitudes of bending moment resisted by the longitudinally continuous structure within the hull girder. In the present work, a set of finite element analyzes...
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Lorenzo Neva (Politecnico di Torino)04/06/2026, 15:15MS16 - Advanced FEM Techniques with Engineering Applications
Many engineering applications, such as fluid–structure interaction and problems involving evolving domains, require efficient numerical methods for the solution of partial differential equations. In these contexts, the geometry of the domain may be complex or change over time. The fictitious domain method is a suitable tool for addressing this class of problems: the main idea is to embed the...
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Paolo Fisicaro (University of Pisa)04/06/2026, 15:30MS16 - Advanced FEM Techniques with Engineering Applications
The position-based finite element formulation (PFEF) assumes the nodal positions rather than the displacements as the primary unknowns. This formulation enables the derivation of simple analytical expressions of the secant and tangent stiffness matrices of isoparametric elements with any hyperelastic constitutive law [1].
Accordingly, the nonlinear governing equations are expressed...
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Diego Ignesti (Department of Civil and Environmental Engineering– University of Florence, Florence, Italy)04/06/2026, 15:45MS16 - Advanced FEM Techniques with Engineering Applications
We present a novel finite-strain mixed isogeometric collocation (IGA-C) formulation for the analysis of visco-hyperelastic geometrically exact beams. The model supports three-dimensional visco-hyperelastic materials while retaining the classical beam kinematic assumptions [1].
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The three-dimensional constitutive equations are expressed starting from the stored energy function, which is split...
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