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Material Properties of HY 80 Steel after 55 Years of Operation for FEM Applications

Mechanical and Electrical Engineering Department, Polish Naval Academy, 81-103 Gdynia, Poland
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Academic Editor: Michele Bacciocchi
Materials 2021, 14(15), 4213; https://doi.org/10.3390/ma14154213
Received: 5 July 2021 / Revised: 21 July 2021 / Accepted: 26 July 2021 / Published: 28 July 2021
(This article belongs to the Special Issue Computational Mechanics of Structures and Materials)
The paper presents the results of testing the properties of HY 80 steel from the hull of a Kobben class 207 submarine after 60 years of operation in extreme sea conditions. Steels from the HY family in the post-war period were used to build American and German submarines. For the obtained fragment of steel from the hull of the Polish submarine ORP Jastrząb (ORP-Boat of the Republic of Poland), static tensile tests were performed on an MTS testing machine. Dynamic tensile tests were carried out on a rotary hammer for the strain rate in the range of 500~2000 s−1. Results: Based on the obtained results, the Johnson–Cook model and the failure parameters of HY 80 steel in terms of the finite element method (FEM) were developed. Conclusion: This model can be used to simulate fast-changing processes such as resistance of structures to collisions, shelling, and the impact of pressure waves caused by explosions in water and air related to submarines. View Full-Text
Keywords: HY 80 steel; static tensile test; dynamic tensile test; rotary hammer; plastic characteristics; Johnson–Cook material model HY 80 steel; static tensile test; dynamic tensile test; rotary hammer; plastic characteristics; Johnson–Cook material model
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MDPI and ACS Style

Bogdan, S.; Radosław, K. Material Properties of HY 80 Steel after 55 Years of Operation for FEM Applications. Materials 2021, 14, 4213. https://doi.org/10.3390/ma14154213

AMA Style

Bogdan S, Radosław K. Material Properties of HY 80 Steel after 55 Years of Operation for FEM Applications. Materials. 2021; 14(15):4213. https://doi.org/10.3390/ma14154213

Chicago/Turabian Style

Bogdan, Szturomski, and Kiciński Radosław. 2021. "Material Properties of HY 80 Steel after 55 Years of Operation for FEM Applications" Materials 14, no. 15: 4213. https://doi.org/10.3390/ma14154213

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