An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach
Само за регистроване кориснике
1995
Чланак у часопису (Објављена верзија)
Метаподаци
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Abstract—Three different fracture mechanics approaches were applied to two full‐scale penstock model tests. The two models were produced, using a Sumiten 80P HSLA steel (minimum yield strength 700 MPa and minimum ultimate tensile strength 800 MPa), in the form of pressure vessels. The first experiment was a burst test performed on a pre‐cracked model to determine crack arrest properties. The second experiment was a hydro‐pressure test on a model with no cracks and this enabled a post‐yield experimental analysis of the undermatched weld metal, when cracks did not initiate. Crack driving forces, obtained numerically, and J‐R curves, obtained by the J‐integral direct measurement on tensile panels, were used to predict the residual strength. The overall behaviour of a welded penstock under load was analysed on the basis of the results of these three approaches, allowing an evaluation of the significance of cracks.
Извор:
Fatigue & Fracture of Engineering Materials & Structures, 1995, 18, 5, 527-538
DOI: 10.1111/j.1460-2695.1995.tb01415.x
ISSN: 8756-758X
Scopus: 2-s2.0-0029306648
Институција/група
Inovacioni centarTY - JOUR AU - Sedmak, Stojan AU - Sedmak, Aleksandar PY - 1995 UR - https://machinery.mas.bg.ac.rs/handle/123456789/129 AB - Abstract—Three different fracture mechanics approaches were applied to two full‐scale penstock model tests. The two models were produced, using a Sumiten 80P HSLA steel (minimum yield strength 700 MPa and minimum ultimate tensile strength 800 MPa), in the form of pressure vessels. The first experiment was a burst test performed on a pre‐cracked model to determine crack arrest properties. The second experiment was a hydro‐pressure test on a model with no cracks and this enabled a post‐yield experimental analysis of the undermatched weld metal, when cracks did not initiate. Crack driving forces, obtained numerically, and J‐R curves, obtained by the J‐integral direct measurement on tensile panels, were used to predict the residual strength. The overall behaviour of a welded penstock under load was analysed on the basis of the results of these three approaches, allowing an evaluation of the significance of cracks. T2 - Fatigue & Fracture of Engineering Materials & Structures T1 - An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach EP - 538 IS - 5 SP - 527 VL - 18 DO - 10.1111/j.1460-2695.1995.tb01415.x ER -
@article{ author = "Sedmak, Stojan and Sedmak, Aleksandar", year = "1995", abstract = "Abstract—Three different fracture mechanics approaches were applied to two full‐scale penstock model tests. The two models were produced, using a Sumiten 80P HSLA steel (minimum yield strength 700 MPa and minimum ultimate tensile strength 800 MPa), in the form of pressure vessels. The first experiment was a burst test performed on a pre‐cracked model to determine crack arrest properties. The second experiment was a hydro‐pressure test on a model with no cracks and this enabled a post‐yield experimental analysis of the undermatched weld metal, when cracks did not initiate. Crack driving forces, obtained numerically, and J‐R curves, obtained by the J‐integral direct measurement on tensile panels, were used to predict the residual strength. The overall behaviour of a welded penstock under load was analysed on the basis of the results of these three approaches, allowing an evaluation of the significance of cracks.", journal = "Fatigue & Fracture of Engineering Materials & Structures", title = "An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach", pages = "538-527", number = "5", volume = "18", doi = "10.1111/j.1460-2695.1995.tb01415.x" }
Sedmak, S.,& Sedmak, A.. (1995). An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach. in Fatigue & Fracture of Engineering Materials & Structures, 18(5), 527-538. https://doi.org/10.1111/j.1460-2695.1995.tb01415.x
Sedmak S, Sedmak A. An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach. in Fatigue & Fracture of Engineering Materials & Structures. 1995;18(5):527-538. doi:10.1111/j.1460-2695.1995.tb01415.x .
Sedmak, Stojan, Sedmak, Aleksandar, "An experimental investigation into the operational safety of a welded penstock by a fracture mechanics approach" in Fatigue & Fracture of Engineering Materials & Structures, 18, no. 5 (1995):527-538, https://doi.org/10.1111/j.1460-2695.1995.tb01415.x . .