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Numerical Study on the Variability of Plastic CTOD [PDF]
Materials, 2020 This paper presents a numerical study on the influence of material parameters and loading variability in the plastic crack tip opening displacement (CTOD) results. For this purpose, AA7050-T6 was selected as reference material and a middle-cracked tension specimen geometry was considered. The studied input parameters were the Young’s modulus, Poisson’s
Pedro André Prates +4 more
openaire +4 more sources
Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesA new CTOD calculation method is investigated in this study, considering the FPZ and the effective Young’s modulus. The calculated CTOD values from four theoretical models are compared with the measured CTOD values from the three-point beam experiments ...
Yang Qiao, Zong-Xian Zhang, Jun Zhou
doaj +2 more sources
Polish Maritime Research, 2021 There are special cases in the marine industry, where additional material tests, such as the fracture toughness test, must be performed. Additional fracture toughness tests, such as CTOD (Crack Tip Opening Displacement), are typically performed on three ...
Kowalski Jakub
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Experimental evaluation of CTOD in constant amplitude fatigue crack growth from crack tip displacement fields [PDF]
Fracture and Structural Integrity, 2017 In the current work an experimental study of the crack tip opening displacement (CTOD) is performed to evaluate the ability of this parameter to characterise fatigue crack growth.
J.M. Vasco-Olmo +3 more
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Engineering Fracture Mechanics, 2021 This paper proposes a new estimation formulation for CTOD fracture parameter for clamped SE(T) geometry. Based upon the plastic-hinge model, CTOD is defined using the crack opening displacements (COD) measured at two locations along the crack flanks of ...
Stijn Hertelé +2 more
exaly +2 more sources
Theoretical and Applied Fracture Mechanics, 2019 Crack tip opening displacement (CTOD) was measured using digital image correlation (DIC) and resolved into elastic and plastic CTOD components via an offset compliance technique.
Fernando Antunes +2 more
exaly +2 more sources
Fatigue and Fracture of Engineering Materials and Structures, 2020 . The plastic range of crack tip opening displacement (CTOD) has been used for the experimental characterisation of fatigue crack growth for 2024-T3 and 7050-T6 aluminium alloys by using digital image correlation (DIC).
Fernando Antunes +1 more
exaly +2 more sources
Nuclear Engineering and Technology, 2023 This study employs the microshear test method to examine the local mechanical properties of narrow-gap welded joints, revealing the mechanical inhomogeneity by evaluating the microshear strength, stress‒strain curves, and failure strain.
Long Tan +4 more
doaj +2 more sources
Metals, 2023 In this study, the effect of finish rolling temperature on the critical crack tip opening displacement (CTOD) of typical 500 MPa grade weathering steel was elucidated.
Junping Wu +6 more
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Fracture and Structural Integrity, 2019 The current work presents an experimental study on the use of the crack tip opening displacement (CTOD) to evaluate its ability to characterise fatigue crack growth.
J.M. Vasco-Olmo +3 more
doaj +4 more sources