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Abstract

This paper is concerned with some of the major issues which have been addressed in the implementation of Arbitrary Lagrangian-Eulerian (ALE) finite element methods for transient fluid-structure problems. The basic concepts underlying the ALE kinematical description and an automatic algorithm for assigning grid velocities are presented and provide the ALE finite element code with a continuous rezoning capability. Emphasis is placed on time integration of the semi-discrete ALE conservation equations for mass, momentum and energy, on the incorporation of shock-capturing techniques in the ALE finite element context and on ALE stress update algorithms for materials exhibiting path-dependent constitutive behaviour.

Additional information

Authors: DONEA J, JRC Ispra (IT)
Bibliographic Reference: Paper presented: 2nd International Conference on Computational Structures Technology, Athens (GR), August 30 - September 1, 1994
Availability: Available from (1) as Paper EN 38179 ORA
Record Number: 199411272 / Last updated on: 1994-11-25
Category: PUBLICATION
Original language: en
Available languages: en