Investigations of stresses of structures caused by pressure waves in connection with safety considerations for nuclear power plants

The technical aspects of stresses of structures caused by pressure waves in nuclear power plants are treated, considering the various cases of application, e.g., stresses of reactor pressure vessel internals, tubes and buildings. The technical measures resulting from these investigations, as additional supporting constructions, are also dealt with. The considerable influences on the licensing procedure and on the project running are discussed as well as the judgement of this area with respect to the balance of the safety concept and operation. Due to the considerable effort to improve the quality of the plant, more and more improbable accidents have to be taken into account. This leads to the demand to perform such invenstigations in the future in a realistic manner also with respect to balance of the safety concept and the operational aspects. (orig.)