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Open AccessArticle

Estimation of Critical Dimensions for the Crack and Pitting Corrosion Defects in the Oil Storage Tank Using Finite Element Method and Taguchi Approach

1
Department of Mechanical Engineering, Islamic Azad University, Badroud Branch, 8764136545 Badroud, Isfahan, Iran
2
Department of Mechanical and Instrumental Engineering, Academy of Engineering, Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklaya 6, 117198 Moscow, Russia
3
Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
*
Authors to whom correspondence should be addressed.
Metals 2020, 10(10), 1372; https://doi.org/10.3390/met10101372
Received: 15 September 2020 / Revised: 4 October 2020 / Accepted: 9 October 2020 / Published: 14 October 2020
(This article belongs to the Special Issue Localized Corrosion of Metals and Alloys)
Tanks play an important role in storing crude oil. Therefore, the maintenance and service life of tanks are very important for oil companies. In this regard, knowledge on the state of the critical conditions of various existing defects, such as cracks and pitting corrosion defects, can play an essential role in providing a better service to these huge metal structures. In the present research, the basic theories relating to crack defects were discussed. Then, an oil reserve in one of the island states of the country was modeled and analyzed by considering different types of defects using Finite Element (FE) simulation. Next, the critical dimensions of cracks and corrosion holes were identified in a number of cases. Eventually, the Taguchi Approach (TA) was used to investigate the effect of different parameters related to the various defects, such as length, depth and diameter, on the maximum stress. The results indicated that the effect of the crack and pitting corrosion depth is superior to the effect of the length and diameter for defects of crack and pitting corrosion, respectively. View Full-Text
Keywords: critical size; crack; pitting corrosion; oil storage tank; FEM; Taguchi Approach critical size; crack; pitting corrosion; oil storage tank; FEM; Taguchi Approach
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Omidi Bidgoli, M.; Reza Kashyzadeh, K.; Rahimian Koloor, S.S.; Petru, M. Estimation of Critical Dimensions for the Crack and Pitting Corrosion Defects in the Oil Storage Tank Using Finite Element Method and Taguchi Approach. Metals 2020, 10, 1372.

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