Behaviour and effects of shock waves in fluid-filled, plasticifying pipelines

ROPLAST provides an experimentally verified code of calculation to describe the elastic-plastic interactions between shock waves in the fluid and pipe wall structures. Calculations with monaxial stress-expansion correlations or with a suitable modification of this characteristic curve for the consideration of multiaxial stresses are given to supplement the experimental results. In order to determine the shock wave load transported by a plasticifying pipeline system on a subsequently placed component - for instance, the intermediate heat exchanger in SNR-300 - the recommendation is made that calculations should be based on the 'biaxial' correlation, since this leads to the smallest reduction in the transported pressure. (orig./DG)