Specifics of Experimental and Fem Approaches in Structural Integrity Assesment of Penstock Made of HSLA Steel

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Taking into account the history of problems concerning high-strength low-alloyed (HSLA) steel used for manufacturing of penstocks (partly presented by authors in previous studies), this paper is oriented toward specifics on structural integrity assessment of construction in question. Experimental testing of parent material, i.e. HSLA steel, such as microstructure analysis, impact toughness testing and hardness measuring provide insight into characteristics of parent material properties. Considering geometry of penstock and specific requirements, finite element method (FEM), i.e. ABAQUS, was used to assess the structural integrity of penstock as a whole, specific the longitudinal welded joint under the different internal (working) pressure. It should be emphasized that a slight undermatching effect was investigated by FEM approach in this case. Focus is being put on plastic deformation investigation on aforementioned welded joint under maximum internal pressure of 120 bar.

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123-130

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September 2024

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© 2024 Trans Tech Publications Ltd. All Rights Reserved

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[1] L. Jeremić, A. Sedmak, B. Petrovski, B. Đorđević, S. Sedmak, Structural integrity assessment of welded pipeline designed with reduced safety, Technical Gazette. 27 (2020) 1461-1466.

DOI: 10.17559/tv-20200413142538

Google Scholar

[2] A. Jovanović, B. Đorđević, L. Jeremić, N. Milovanović, T. Smoljanić, Integrity assessment of autoclaves after reconstruction, Structural Integrity and Life. 3 (2022) 347-352.

Google Scholar

[3] L. Jeremić., A. Sedmak, N. Milovanović, N. Milošević, S. Sedmak, 2021, Assessment of integrity of pressure vessels for compressed air, Structural Integrity and Life. 1 ((2022) 3-6.

Google Scholar

[4] S. Kirin, L. Jeremić, A. Sedmak, Risk based analysis of RHPP penstock structural integrity, Frattura ed Integrità Strutturale. 14 (2020) 345-352.

DOI: 10.3221/igf-esis.53.27

Google Scholar

[5] A. Sedmak, S. Kirin, I. Martic, L. Jeremic, I. Vucetic, T. Golubovic, S. Sedmak, Structural integrity and life assessment of pressure vessels - risk based approach, CNNTech Experimental and Computational Investigations in Engineering. (2020) 274-293.

DOI: 10.1007/978-3-030-58362-0_16

Google Scholar

[6] M. Jarić, N. Budimir, S. Petronić, A. Maslarević , A. Jovanović, Oily-Water Tank Operational Reliability Analysis in an Oil and Gas Facility, Structural Integrity and Life. 1 (2023) 82–86.

Google Scholar

[7] R. Zaidi, A. Sedmak, S. Kirin, I. Martić, Ž. Šarkočević, Structural Integrity and Life Assessment of Oil Drilling Rig Pipes Using Analytical Method, Structural Integrity and Life. 1 (2022) 63–68.

DOI: 10.1016/j.prostr.2020.10.102

Google Scholar

[8] M. Aranđelović, L. eremić, B. Đorđević, S. Sedmak, M. Opačić, Integrity Assessment of Ammonia Storage Tank by Non-Destructive Testing, Structural Integrity and Life. .3 (2021) 295–300.

Google Scholar

[9] H. Qananah, R. Petrović, A. Banaszek, M. Anđelković, R. Cvejić, N. Đorđević, N. Milovanović, Stress State Optimisation of Vertical Atmospheric Large-Volume Tanks, Structural Integrity and Life. 2 (2022) 247–251.

Google Scholar

[10] N.Milovanovic, B.Djordjevic, S.Sedmak, A.Grbovic, I.Martic, Some problems of xFEM modelling of surface crack growth in a turbine shaft, Procedia Structural Integrity. 42 (2022) 362-367.

DOI: 10.1016/j.prostr.2022.12.045

Google Scholar

[11] Đ. Đurđević, A. Đurđević, Numerical and experimental determination of stress and strain state in a connection lug, Procedia Structural Integrity. 48 (2023) 88-95.

DOI: 10.1016/j.prostr.2023.07.114

Google Scholar

[12] N. Raičević, A. Grbović, G. Kastratović, N. Vidanović, A. Sedmak, Residual life estimation of damaged structures exposed to high pressures and temperatures, Procedia Structural Integrity. 48 (2023) 342-347.

DOI: 10.1016/j.prostr.2023.07.123

Google Scholar

[13] A. Grbović, A. Solob, S. Sedmak, A. Sedmak, Numerical and Experimental Analysis of the Integrity of Light Aircraft Wing Structure, Structural Integrity and Life. 2 (2023) 167–172.

DOI: 10.1016/j.prostr.2021.03.021

Google Scholar

[14] S. Sedmak. A. Radović, Lj. Nedeljković: The strength of welds in HSLA steel after initial plastic deformation", in Mechanical Behavior of Materials. 3 (1979). 435-446.

DOI: 10.1016/b978-1-4832-8414-9.50136-x

Google Scholar

[15] B. Božić, S. Sedmak, B. Petrovski, A. Sedmak, Crack gowth resistance of weldment constituents in a real structure, Bulletin T. Cl de I'Academie serbe des Sciences at des Arts, Classe des Sciences techniques. 25 (1989) 21-24.

Google Scholar

[16] S. Sedmak, A. Sedmak, Experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach. Fatigue and Fracture of Engineering Materials and Structures. 18 (1995) 527-538.

DOI: 10.1111/j.1460-2695.1995.tb01415.x

Google Scholar

[17] S. Sedmak, A. Sedmak, Integrity of Penstock of Hydroelectric Power plant, Structural Integrity and Life. 5 (2005) 59-71.

Google Scholar