Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature
Abstract
This paper presents the results and methods used for determining of fracture toughness of reactor steel, denoted as 20MnMoNi55, typically used for structures working at low temperatures, in transition temperature area. In addition, the effect of test specimen geometry and temperature on fracture toughness was investigated in order to predict the fracture behavior and probability of failure. Failure probabilities (i.e. cleavage fracture) in the function of J(c) for large test specimens, CT100 and CT200 were determined based on the results obtained by testing of small CT50 specimens, for the purpose of direct savings and decreased costs of specimen testing. Failure probability, represented using Weibull distribution of experimental data, will provide a clear insight into material behavior at different temperatures. Other factors affecting the obtained test results will also be discussed.
Keywords:
Weibull distribution / prediction / J-integral / Failure probability / 20MnMiNi55 steelSource:
Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1, 2020, 28, 295-300Publisher:
- Elsevier, Amsterdam
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
DOI: 10.1016/j.prostr.2020.10.035
ISSN: 2452-3216
WoS: 000632387500035
Scopus: 2-s2.0-85099845473
Collections
Institution/Community
Inovacioni centarTY - CONF AU - Đorđević, Branislav R. AU - Sedmak, Aleksandar AU - Petrovski, Blagoj AU - Dimić, Aleksandar PY - 2020 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3259 AB - This paper presents the results and methods used for determining of fracture toughness of reactor steel, denoted as 20MnMoNi55, typically used for structures working at low temperatures, in transition temperature area. In addition, the effect of test specimen geometry and temperature on fracture toughness was investigated in order to predict the fracture behavior and probability of failure. Failure probabilities (i.e. cleavage fracture) in the function of J(c) for large test specimens, CT100 and CT200 were determined based on the results obtained by testing of small CT50 specimens, for the purpose of direct savings and decreased costs of specimen testing. Failure probability, represented using Weibull distribution of experimental data, will provide a clear insight into material behavior at different temperatures. Other factors affecting the obtained test results will also be discussed. PB - Elsevier, Amsterdam C3 - Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1 T1 - Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature EP - 300 SP - 295 VL - 28 DO - 10.1016/j.prostr.2020.10.035 ER -
@conference{ author = "Đorđević, Branislav R. and Sedmak, Aleksandar and Petrovski, Blagoj and Dimić, Aleksandar", year = "2020", abstract = "This paper presents the results and methods used for determining of fracture toughness of reactor steel, denoted as 20MnMoNi55, typically used for structures working at low temperatures, in transition temperature area. In addition, the effect of test specimen geometry and temperature on fracture toughness was investigated in order to predict the fracture behavior and probability of failure. Failure probabilities (i.e. cleavage fracture) in the function of J(c) for large test specimens, CT100 and CT200 were determined based on the results obtained by testing of small CT50 specimens, for the purpose of direct savings and decreased costs of specimen testing. Failure probability, represented using Weibull distribution of experimental data, will provide a clear insight into material behavior at different temperatures. Other factors affecting the obtained test results will also be discussed.", publisher = "Elsevier, Amsterdam", journal = "Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1", title = "Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature", pages = "300-295", volume = "28", doi = "10.1016/j.prostr.2020.10.035" }
Đorđević, B. R., Sedmak, A., Petrovski, B.,& Dimić, A.. (2020). Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1 Elsevier, Amsterdam., 28, 295-300. https://doi.org/10.1016/j.prostr.2020.10.035
Đorđević BR, Sedmak A, Petrovski B, Dimić A. Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature. in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1. 2020;28:295-300. doi:10.1016/j.prostr.2020.10.035 .
Đorđević, Branislav R., Sedmak, Aleksandar, Petrovski, Blagoj, Dimić, Aleksandar, "Weibull probability distribution for reactor steel 20MnMoNi55 cleavage fracture in transition temperature" in Procedia Structural Integrity - 1st Virtual European Conference on Fracture - Vecf1, 28 (2020):295-300, https://doi.org/10.1016/j.prostr.2020.10.035 . .