caa a22 4500 475828828 CHVBK 20180406123836.0 cr unu---uuuuu 170329e20000801xx s 000 0 eng 10.1023/A:1011337822957 doi (NATIONALLICENCE)springer-10.1023/A:1011337822957 Assessment of the Vulnerability of RBMK Fuel Channels to Loads Produced by the Rupturing of One Channel [Elektronische Daten] [B. Gabaraev, O. Novosel'skii, V. Filinov, L. Parafilo] The possibilities for a fuel-channel pipe in RBMK, with nominal parameters, to rupture under internal and external loading caused by the rupture of a neighboring damaged channel, which becomes overheated for a general reason, are analyzed. The deformation of the masonry and the loads on the pipes are calculated using the R_SPACE code. The stress state of the channel tube closest to the rupture is estimated. It is established that the maximum stresses on the inner surface of a channel tube as the result of the ruptured channel are reached at the first second primarily as a result of the internal pressure and contact forces. On the inner surface of the convex part of the tube, the largest stresses at the eleventh second are primarily due to the internal pressure and the maximum deflection of the column. An estimate of the stressed state according to plasicity and strength criteria shows that when one channel ruptures at the center of the core, secondary rupture of the pipes in the surrounding channels, which are subject to the normal operating conditions, will not occur. 7 figures, 4 references. Plenum Publishing Corporation, 2000 Gabaraev B. Scientific-Research and Design Institute of Power Engineering, Russia aut Novosel'skii O. Scientific-Research and Design Institute of Power Engineering, Russia aut Filinov V. Scientific-Research and Design Institute of Power Engineering, Russia aut Parafilo L. A. I. Leipunskii Physics and Power Engineering Institute, State Science Center of the Russian Federation -, Russia aut Atomic Energy Kluwer Academic Publishers-Plenum Publishers 89/2(2000-08-01), 597-603 1063-4258 89:2<597 2000 89 10512 https://doi.org/10.1023/A:1011337822957 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1011337822957 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gabaraev B. Scientific-Research and Design Institute of Power Engineering, Russia aut NATIONALLICENCE 700 1- Novosel'skii O. Scientific-Research and Design Institute of Power Engineering, Russia aut NATIONALLICENCE 700 1- Filinov V. Scientific-Research and Design Institute of Power Engineering, Russia aut NATIONALLICENCE 700 1- Parafilo L. A. I. Leipunskii Physics and Power Engineering Institute, State Science Center of the Russian Federation -, Russia aut NATIONALLICENCE 773 0- Atomic Energy Kluwer Academic Publishers-Plenum Publishers 89/2(2000-08-01), 597-603 1063-4258 89:2<597 2000 89 10512 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer