20.500.12556/RUL-128366 Reliability-based design optimization of pump penetration shell accounting for material and geometric non-linearity Optimizacija konstrukcije prebojnega skoznjika črpalke za zanesljivost ob upoštevanju materiala in geometrijskih nelinearnosti The roof slab of a nuclear reactor supports all the components and sub-systems. It needs to resist the seismic loads in accordance with load-carrying criteria. The static stress analysis of the reactor roof slab reveals that high-stress concentration was present in the pump penetration shell (PPS) that supports the primary sodium pump. This paper presents an assessment of collapse load and the optimization of the pump penetration shell through the reliability approach, accounting for material non-linearity, geometrical non-linearity and randomness in loading. In addition, the load-carrying capacity of PPS was determined considering two different materials: IS2062 and A48P2. The design of experiments (DoE) was formulated considering the flange angle and flange thickness as parameters. An empirical model for load function was formulated from the results of the collapse load obtained for various combinations of design parameters. The above function was used to perform the reliability-based geometry optimization of the PPS of the roof slab. nuclear reactors buckling optimization reliability limit load genetic algorithm jedrski reaktorji uklon optimizacija zanesljivost mejna obremenitev genetski algoritem true false true Angleški jezik Slovenski jezik Članek v reviji 2021-07-09 13:47:01 2021-07-09 13:47:03 2025-03-11 14:26:07 0000-00-00 00:00:00 2021 0 0 Str. 331-340 no. 6 Vol. 67 June 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.039.5 0039-2480 10.5545/sv-jme.2021.7104A 69856771 RAZ_Velayudhan_Gautham_2021.pdf RAZ_Velayudhan_Gautham_2021.pdf 1 AC81A58ED7E5EDE49835AAC7C8D658BA 5b268374362523f28362e68b95372369d94ae71ab1e1c4d94ca90635a96cbcc2 a93fe0fd-e0ab-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145086 https://www.sv-jme.eu/sl/article/reliability-based-design-optimization-of-pump-penetration-shell-accounting-for-material-and-geometric-non-linearity/ 1 3fc92a91-e0ab-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145084 Fakulteta za strojništvo 0 0 0