PSI - Issue 28

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000 il l li t . i i t. tr t r l I t rit r i ( )

www.elsevier.com/locate/procedia . l i r. /l t / r i

ScienceDirect

Procedia Structural Integrity 28 (2020) 1055–1061

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Abstract Ductile cast irons (DCIs) offer an interesting combination of good castability and high mechanical properties, with acceptable costs. DCI structural components are widely used in important applications like automotive components (e.g. crankshafts and truck axles), wind turbines components and pipelines components (e.g., valves, fit-tings and pipes). In this paper, several sets of fatigue tests, available in the literature, are simulated by using a total life approach, and the fatigue lifetime is computed. The examined ductile cast iron EN-GJS-400-18 specimens were alternatively subjected to tensile and torsional loading, and to in-phase and out of-phase combined bending and torsion. The obtained results are compared with experimental ones, and a quite good accuracy of the criterion used is observed for the simulated tests. © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Keywords: ductile cast iron; fatigue; lifetime; total life approch 1. Introduction Ductile cast iron (DCI, also named nodular iron or spheroidal graphite) is a group of ferrous materials belonging to the cast iron family, where nodular shape graphite particles are embedded in an iron matrix (ASM Handbook, 1990). til t i i t ti i ti t ilit i i l ti , it t l t . t t l t i l i i t t li ti li t ti t . . t t l , i t i t i li t . ., l , it ti i . t i , l t ti t t , il l i t lit t , i l t i t t l li , t ti li ti i t . i til t i i lt ti l j t t t il t i l l i , t i t i i t i . t i lt it i t l , it t it i i t i l t t t . © 20 0 e t o s. Publi .V. This is n pen a ce ti le u t C C-ND lice e ( t :// ti o . /li / / . i i ilit t t t l t it i t : til t ir ; f ti ; lif ti ; t t l lif r . i til t i , l l i i l it i t i l l i t t t i il , l it ti l i i t i , 1st Virtual European Conference on Fracture Total life approach analysis of ductile cast iron smooth specimens Sabrina Vantadori a, *, Andrea Carpinteri a , Camilla Ronchei b , Daniela Scorza c , Andrea Zanichelli a a Department of Engineering and Architecture, University of Parma, Italy , a t t f i i it t , i it f , It l b Department of Civil Engineering, University of Calabria, Italy c Department of Engineering, University of Naples Parthenope, Italy b t t f i il i i , i it f l i , It l c t t f i i , i it f l t , It l

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* Corresponding author. E-mail address: sabrina.vantadori@unipr.it r i t r. - il : ri . t ri i r.it

2452-3216 © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo - t r . li I . . i i rti l r t - - li ( t : / r ti . r /li / - - / . ) r-r i r r i ilit f t r tr t r l I t rit i t ( I )

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo 10.1016/j.prostr.2020.11.121