Another speaker we were happy to participate at the EuroMed SIMULIA Conference 2024, on June 11-12, 2024 in Milan, Italy, was @CF from the Politecnico di Milano. His presentation shown below is titled "Simulation of Free-Surface Fluid-Structure Interaction Problems Employing Particle Finite Element Method and Abaqus/Explicit".
PDF Slides:
Abstract:
Fluid-structure interaction (FSI) problems involving large structural deformation and fast-evolving free surfaces and interfaces are of great relevance in many areas of engineering and technology. This work introduces a partitioned scheme combining two solvers: an in-house solver based on the Particle Finite Element Method (PFEM) for the fluid subproblem and ABAQUS/Explicit for the solid subproblem.
The PFEM, a Lagrangian finite element method based on continuous re-meshing, proved to be particularly effective in solving problems presenting free surfaces, propagating waves and evolving interfaces between fluid and solid. To guarantee an efficient solution scheme, explicit time integration is performed. Meanwhile, ABAQUS/Explicit enables handling complex structural materials, diverse finite element types (e.g., beams, shells), and complex inter-body interactions.
The coupling between the structure and fluid is achieved by exploiting the SIMULIA built-in Co-Simulation Service, which incorporates the Gravouil and Comberscure (G&C) algorithm. The method guarantees a strong and stable coupling between the fluid and solid solvers while maintaining an overall system of fully decoupled explicit equations.
The proposed solution scheme has been tested with benchmarks from the literature and also in more complex engineering problems, showing its effectiveness and versatility.
About the Speaker:
Cheng Fu started his Ph.D. in Structural, Seismic and Geotechnical Engineering in November 2020 at Politecnico di Milano, where he also obtained a bachelor's degree in Civil Engineering and a master's degree in Structural Engineering.
His research activity is based on the development and implementation of mathematical methods for
Fluid-structure interaction (FSI) problems involve the Finite Element Method, Particle Finite Element Method, mixed Lagrangian-Eulerian approaches, and highly nonlinear and fast dynamics problems solved in an explicit framework. Specifically, he develops numerical tools aimed at enhancing the efficiency of FSI solvers and addressing mesh distortion problems in Lagrangian explicit finite element methods through the introduction of the Virtual Element Method.
@CF
PhD Student, Politecnico di Milano
More content from the EuroMed SIMULIA Conference 2024 can be found here:
