Structural integrity analysis of a cracked pressure vessel
2021
Authors
Milovanović, Aleksandar M.Mijatović, Tamara
Diković, Ljubica
Trumbulović, Ljiljana
Drndarević, Branko
Article (Published version)
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Stress distribution, as obtained by finite element method (FEM), and corresponding fracture mechanics parameters, have been used for the integrity assessment of a pressure vessel. Once the stress distribution is known, the most critical area can be analysed with assumed crack to estimate its critical length according to fracture mechanics parameters and basic laws. Toward this end, the Failure Assessment Diagram (FAD) is used to calculate the crack length corresponding to the limit curve. As one can see, coordinates in FAD are the ratio of net- and critical stress (x axis, S-r = S-n/S-c), and ratio of stress intensity factor and its critical value (y axis, K-r = K-i/K-Ic). Once net stress and the stress intensity factor are known and their critical values, coordinates of a point corresponding to any crack length can be calculated and positioned in the FAD.
Keywords:
structural integrity / pressure vessel / fracture mechanics / finite element analysis / crackSource:
Structural Integrity and Life, 2021, 21, 3, 285-289Publisher:
- Institut za ispitivanje materijala, Beograd
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Inovacioni centarTY - JOUR AU - Milovanović, Aleksandar M. AU - Mijatović, Tamara AU - Diković, Ljubica AU - Trumbulović, Ljiljana AU - Drndarević, Branko PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3643 AB - Stress distribution, as obtained by finite element method (FEM), and corresponding fracture mechanics parameters, have been used for the integrity assessment of a pressure vessel. Once the stress distribution is known, the most critical area can be analysed with assumed crack to estimate its critical length according to fracture mechanics parameters and basic laws. Toward this end, the Failure Assessment Diagram (FAD) is used to calculate the crack length corresponding to the limit curve. As one can see, coordinates in FAD are the ratio of net- and critical stress (x axis, S-r = S-n/S-c), and ratio of stress intensity factor and its critical value (y axis, K-r = K-i/K-Ic). Once net stress and the stress intensity factor are known and their critical values, coordinates of a point corresponding to any crack length can be calculated and positioned in the FAD. PB - Institut za ispitivanje materijala, Beograd T2 - Structural Integrity and Life T1 - Structural integrity analysis of a cracked pressure vessel EP - 289 IS - 3 SP - 285 VL - 21 UR - https://hdl.handle.net/21.15107/rcub_machinery_3643 ER -
@article{ author = "Milovanović, Aleksandar M. and Mijatović, Tamara and Diković, Ljubica and Trumbulović, Ljiljana and Drndarević, Branko", year = "2021", abstract = "Stress distribution, as obtained by finite element method (FEM), and corresponding fracture mechanics parameters, have been used for the integrity assessment of a pressure vessel. Once the stress distribution is known, the most critical area can be analysed with assumed crack to estimate its critical length according to fracture mechanics parameters and basic laws. Toward this end, the Failure Assessment Diagram (FAD) is used to calculate the crack length corresponding to the limit curve. As one can see, coordinates in FAD are the ratio of net- and critical stress (x axis, S-r = S-n/S-c), and ratio of stress intensity factor and its critical value (y axis, K-r = K-i/K-Ic). Once net stress and the stress intensity factor are known and their critical values, coordinates of a point corresponding to any crack length can be calculated and positioned in the FAD.", publisher = "Institut za ispitivanje materijala, Beograd", journal = "Structural Integrity and Life", title = "Structural integrity analysis of a cracked pressure vessel", pages = "289-285", number = "3", volume = "21", url = "https://hdl.handle.net/21.15107/rcub_machinery_3643" }
Milovanović, A. M., Mijatović, T., Diković, L., Trumbulović, L.,& Drndarević, B.. (2021). Structural integrity analysis of a cracked pressure vessel. in Structural Integrity and Life Institut za ispitivanje materijala, Beograd., 21(3), 285-289. https://hdl.handle.net/21.15107/rcub_machinery_3643
Milovanović AM, Mijatović T, Diković L, Trumbulović L, Drndarević B. Structural integrity analysis of a cracked pressure vessel. in Structural Integrity and Life. 2021;21(3):285-289. https://hdl.handle.net/21.15107/rcub_machinery_3643 .
Milovanović, Aleksandar M., Mijatović, Tamara, Diković, Ljubica, Trumbulović, Ljiljana, Drndarević, Branko, "Structural integrity analysis of a cracked pressure vessel" in Structural Integrity and Life, 21, no. 3 (2021):285-289, https://hdl.handle.net/21.15107/rcub_machinery_3643 .