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Cicero, Sergio
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Publications (7/7 displayed)
- 2024Small Punch Test to Estimate the Threshold Stress in Aggressive Environments by Incremental Step Loading
- 2024Notch Effect in Acrylonitrile Styrene Acrylate (ASA) Single-Edge-Notch Bending Specimens Manufactured by Fused Filament Fabricationcitations
- 2023Fracture Behavior of AA7075-AA6061 and AA7075-Cu Friction-Stir Welded Joints Containing Blunt V-Notches under Opening-Mode Loadingcitations
- 2022Using Direct Current Potential Drop Technique to Estimate Fatigue Crack Growth Rates in Solid Bar Specimens under Environmental Assisted Fatigue in Simulated Pressurized Water Reactor Conditionscitations
- 2022On the Validity of the Weibull Parameters Used in the Master Curve in Ferritic Steels Containing Notches
- 2021Dealing with the Fracture Ductile-to-Brittle Transition Zone of Ferritic Steels Containing Notches: On the Applicability of the Master Curvecitations
- 2019OPTIMISATION OF A CORROSION-PROTECTIVE COATING FOR A NEW BOAT LANDING SYSTEM USED IN OFFSHORE WIND TURBINES
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document
On the Validity of the Weibull Parameters Used in the Master Curve in Ferritic Steels Containing Notches
Abstract
<jats:title>Abstract</jats:title><jats:p>The Master Curve (MC) is a valuable well-known characterization tool of the fracture behaviour of ferritic steels operating within their ductile-to-brittle transition zone (DBTZ). It assumes weakest link statistics in the cleavage process and it is based on a 3 parameter Weibull distribution analysis of the experimental results. Besides, it takes into account the scatter of the fracture resistance, the size effect and the temperature dependence. The methodology has been widely validated and has been standardised in ASTM 1921. This paper analyses whether the Weibull parameters used by the MC, which have been defined and calibrated in cracked conditions, can be applied in ferritic steels containing notches. This would allow the MC to be directly applied in notched conditions. Thus, the different premises sustaining the use of the Master Curve and its 3 Weibull parameters in cracked conditions are summarised, and their corresponding use in notched conditions is subsequently discussed and justified. In addition, some experimental results obtained in two distinct structural steels (S275JR and S690Q) containing different notch radii are utilised in both the analyses of the Weibull parameters and the direct application of the MC in notched conditions. It is observed how the MC provides accurate predictions of the apparent fracture toughness within the DBTZ of the two steels analysed.</jats:p>