The future of the finite element method in geotechnics

Abstract

In this presentation a vision is given on tlie fiiture of the finite element method (FEM) for geotechnical engineering and design. In the past 20 years the FEM has proven to be a powerful method for estimating deformation, stability and groundwater flow in geoteclmical stmctures. Much has been achieved in terms of advanced models for soil behaviour, 3D modelling and meshing, realistic simulation of soil-structure interaction and constmction stages, robust numerical procedures, parallel processing and visualization of results. New challenges for the FEM are how to deal with Eurocode 7, heterogeneity ofthe ground, large defonnations and flow of materials, coupling of different physical and engineering processes, availability of data (using the intemet), and, last but not least, the required loiowledge and expertise of the user. A discussion point is to what extend the user of geotechnical finite element software needs to Imow the fundamental backgrounds of the 'engine' as long as he/she understands the possibilities and limitations. Is there a need for a 'driving licence', and who should issue the Ucence?Geoscience & EngineeringCivil Engineering and Geoscience