PSI - Issue 14

Filin V.Yu. et al. / Procedia Structural Integrity 14 (2019) 758–773 Filin V.Yu, Ilyin A.V. / Structural Integrity Procedia 00 (2018) 000–000

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if the reliability of structures is not ensured at real plant manufacturing. A single way to attain both profitability and reliability is introducing a documented control system for technological process parameters and material destructive and nondestructive testing providing for quality with a given failure probability. The same may be realized at

different levels:  Project level,

 Industrial branch level,  National standard level.

The lowest (project) level is not intended for keeping the continuity of the manufacturing culture and stability of quality for different projects. The highest (national) level allows setting the general principles but does not take in account the peculiarities of various products. In marine engineering and shipbuilding, the intermediate level is realized in global practice by classification societies being members of IACS (Lloyd Register, DNV GL, ABS, Russian Maritime Register of Shipping and so on). Documents issued by these societies regulate a lot of shipbuilding problems (like a technological traceability of ship materials) but a lot of aspects are still at Manufacturer’s responsibility that is a black hole. In then USSR there was a practice of industrial branch standards, and this approach is still alive. Russian shipbuilding has branch standards for ship hull assembling and welding, nondestructive inspection, making shaped elements from plates, forging, in-service inspection and so on. These documents have been developed on the inter ministry level using scientific, technological, manufacturing and economical approaches. This system solves the product quality problem through the stability of technological processes with different Manufacturers and various product types. Russian shipbuilding industry uses a unified system of nondestructive inspection and destructive tests. A similar properly upgraded documentary system can be realized in other countries with the participation of our Institute for the industrial branches related: shipbuilding, pipeline industry, offshore hydrocarbon production, power generation etc. Acknowledgements A great number of experimental trials have been performed by M.A.Gusev and O.P.Vinogradov on equipment maintained by E.A.Belkov. A comparatively high number of FEM problems were solved by A.V.Mizetsky and D.M.Artemiev. References Ilyin A.V, Leonov V.P., Filin V.Yu. Evaluation of the fracture toughness parameter CTOD for welded joints of ship hull steels at low climatic temperatures. Transactions of Russian Maritime Register of Shipping. Issue 32, pp. 120-146. 2009. Ilyin A.V., Filin V.Yu. Computational fracture mechanics estimation of the strength of deep-water welded constructions. Russian Metallurgy (Metally) , Vol. 2013, issue 4, pp. 256-261. 2013. Ilyin A.V., Filin V.Yu. On the Ratio of Local and Energy Criteria of Unstable Cleavage Fracture of Cold-Resistant Steel. Inorganic Materials. Vol. 50, No. 15, pp. 1543–1548. 2014. Ilyin A.V., Filin V.Yu. Calculated strength assesments in respect of brittle fracture by engineering and critical analysis (ECA). Aviation materials and technologies. Vol. S1, pp. 13-19. 2015. Ilyin A.V., Filin V.Yu., Gusev M.A., Markadeeva A.Yu., Yurkov M.E. Practice of certification tests of high-strength cold resistant ship hull steels to get an acquaintance certificate of the Russian Maritime Register of Shipping. Proceedings of the Sixth International Scientific Technical Conference Sudometrika-2016. V.A.Granovsky, ed. pp.111-118. 2016. Ilyin A.V., Artemiev D.M., Filin V.Yu. Simulation of the propagation and arrest of the brittle fracture in steel plates with initial crack using finite element method. Zavodskaya laboratoriya. Diagnostika materialov. Vol. 84. №1 (I), pp.56-65. 2018. Ilyin A.V., Artemiev D.M., Filin V.Yu. Estimation of critical temperatures of brittle-ductile transition and brittle fracture arrest correlation based on finite element modeling. Zavodskaya laboratoriya. Diagnostika materialov. Vol. 84. №2, pp.46-55. 2018. O’Dowd N.P., Shih C.F. Family of crack-tip fields characterized by a triaxiality parameter: Part I –– Structure of fields. J Mech Phys. Solids 1991;39:989–1015.