Plenary and Semi-Plenary Lectures
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| Title: |
| Possibilities of the Particle Finite Element Method in Computational Mechanics |
| Lecturer: |
| Eugenio Oņate |
| Abstract: |
The Particle Finite Element Method (PFEM) is a general numerical procedure for the analysis of problems in fluid and solid mechanics. The key feature of the PFEM is the use of an arbitrary Lagrangian-Eulerian description to model the motion of the nodes in both the fluid and the solid domains. Surface nodes are viewed as particles which can freely move and separate from the main analysis domain representing, for instance, the effect of water drops or disgregated solid particles. The definition of the boundary of the analysis domain at each step is performed using the Alpha Shape method. A mesh connects the node defining the discretized analysis domain where the governing equations are solved using an stabilized FEM. The PFEM is particularly suited for fluid-structure interaction situations accounting for large motions of the free surface and splashing of waves, as well as complex non linear problems in solids accounting for large deformations with multiple frictional contacts and material fragmentation.
Examples of application of the PFEM will include FSI problems in naval and marine engineering, the simulation of metal forming processes, the analysis of excavation processes in geomechanics, the melting of polymers in fire conditions and fluid mixing problems. |
 Eugenio Oņate is a Professor in Structural and Continuum Mechanics at the Technical University of Catalonia (UPC) in Barcelona. He was Director of the Civil Engineering School at UPC between 1983 and 1989. He is Honorary President of the Spanish Society for Numerical Methods in Engineering and Founder and Director of the International Center for Numerical Methods in Engineering (CIMNE) since 1987. He is the past-President of the European Community on Computational Methods in Applied Sciences (ECCOMAS) and the current President of the International Association for Computational Mechanics (IACM).
He is author of a text book, some 90 papers in international journals and over 200 papers in conference proceedings. He is the main editor of two international journals on topics related to Computational Mechanics.
He has received a number of Awards such the Narcis Monturiol Award of the Catalonian Government for Scientific and Technological Merit (1984), the Award of the Civil Engineering Institution in Spain to the Professional Merit (1996), the Reissner Award in Computational Mechanics (1996) and the IACM Computational Mechanics Award (1998).
His research activities are focussed in the development and application of numerical methods for solution of problems in structural engineering, fluid dynamics and industrial forming problems, among many others. |
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