FINITE ELEMENT ANALYSIS OF FLUID-STRUCTURE INTERACTION PROBLEMS.

Fluid-structure-interaction in dynamic problems has found a growing world-wide interest in recent years. This is especially true for the structural design of nuclear reactor components under various loads. In this paper a contribution is made to the numerical treatment of ″small″ pressure pulses in the fluid and ″small″ deflections in the structure wet by the fluid. The representation of fluid and structure by linear finite elements is very suitable for this problem as considerable experience has been gained with structure which can also be applied to fluids.