Critical crack assessment procedure for high pressure steam turbine rotors
Само за регистроване кориснике
1995
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Abstract A critical crack assessment procedure for high pressure steam turbine rotors is introduce and applied. The processes relating to low‐cycle thermal fatigue (LCTF), high‐cycle fatigue (HCF) and creep are considered and the critical crack length is determined in accordance with its shape and position, based on a linear elastic fracture mechanics criterion. Taking this critical crack length as the final value, two mechanisms of crack growth are analysed, LCTF and creep, with the aim of defining the initial value of crack length. Alternatively, LCTF and creep are analysed as crack initiation processes with the aim of defining the appropriate time and number of cycles which can be used in relation to crack growth. The worst‐case materials data are used in order to obtain a conservative estimation of the critical crack length. The procedure is also applicable, directly or modified, to other power plant components, e.g. intermediate and low pressure rotors, steamlines and castings.
Извор:
Fatigue & Fracture of Engineering Materials & Structures, 1995, 18, 9, 923-934
DOI: 10.1111/j.1460-2695.1995.tb00917.x
ISSN: 8756-758X
Scopus: 2-s2.0-0029368421
Институција/група
Inovacioni centarTY - JOUR AU - Sedmak, Aleksandar AU - Sedmak, Stojan PY - 1995 UR - https://machinery.mas.bg.ac.rs/handle/123456789/127 AB - Abstract A critical crack assessment procedure for high pressure steam turbine rotors is introduce and applied. The processes relating to low‐cycle thermal fatigue (LCTF), high‐cycle fatigue (HCF) and creep are considered and the critical crack length is determined in accordance with its shape and position, based on a linear elastic fracture mechanics criterion. Taking this critical crack length as the final value, two mechanisms of crack growth are analysed, LCTF and creep, with the aim of defining the initial value of crack length. Alternatively, LCTF and creep are analysed as crack initiation processes with the aim of defining the appropriate time and number of cycles which can be used in relation to crack growth. The worst‐case materials data are used in order to obtain a conservative estimation of the critical crack length. The procedure is also applicable, directly or modified, to other power plant components, e.g. intermediate and low pressure rotors, steamlines and castings. T2 - Fatigue & Fracture of Engineering Materials & Structures T1 - Critical crack assessment procedure for high pressure steam turbine rotors EP - 934 IS - 9 SP - 923 VL - 18 DO - 10.1111/j.1460-2695.1995.tb00917.x ER -
@article{ author = "Sedmak, Aleksandar and Sedmak, Stojan", year = "1995", abstract = "Abstract A critical crack assessment procedure for high pressure steam turbine rotors is introduce and applied. The processes relating to low‐cycle thermal fatigue (LCTF), high‐cycle fatigue (HCF) and creep are considered and the critical crack length is determined in accordance with its shape and position, based on a linear elastic fracture mechanics criterion. Taking this critical crack length as the final value, two mechanisms of crack growth are analysed, LCTF and creep, with the aim of defining the initial value of crack length. Alternatively, LCTF and creep are analysed as crack initiation processes with the aim of defining the appropriate time and number of cycles which can be used in relation to crack growth. The worst‐case materials data are used in order to obtain a conservative estimation of the critical crack length. The procedure is also applicable, directly or modified, to other power plant components, e.g. intermediate and low pressure rotors, steamlines and castings.", journal = "Fatigue & Fracture of Engineering Materials & Structures", title = "Critical crack assessment procedure for high pressure steam turbine rotors", pages = "934-923", number = "9", volume = "18", doi = "10.1111/j.1460-2695.1995.tb00917.x" }
Sedmak, A.,& Sedmak, S.. (1995). Critical crack assessment procedure for high pressure steam turbine rotors. in Fatigue & Fracture of Engineering Materials & Structures, 18(9), 923-934. https://doi.org/10.1111/j.1460-2695.1995.tb00917.x
Sedmak A, Sedmak S. Critical crack assessment procedure for high pressure steam turbine rotors. in Fatigue & Fracture of Engineering Materials & Structures. 1995;18(9):923-934. doi:10.1111/j.1460-2695.1995.tb00917.x .
Sedmak, Aleksandar, Sedmak, Stojan, "Critical crack assessment procedure for high pressure steam turbine rotors" in Fatigue & Fracture of Engineering Materials & Structures, 18, no. 9 (1995):923-934, https://doi.org/10.1111/j.1460-2695.1995.tb00917.x . .