Results 1 to 10 of about 5,709 (204)
Using 3D Digital Image Correlation (3D-DIC) to Measure CTOD in a Semi-Elliptical Surface Crack [PDF]
Proceedings, 2018 The subsurface nature of Crack Tip Opening Displacement (CTOD) makes its direct measurement very difficult, if not impossible. During fracture toughness testing, CTOD is commonly calculated by applying a plastic hinge model using externally applied clip ...
Kaveh Samadian +2 more
doaj +3 more sources
Numerical Study on the Variability of Plastic CTOD. [PDF]
Materials (Basel), 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
André Prates P +4 more
europepmc +5 more sources
Effect of numerical parameters on plastic CTOD [PDF]
Fracture and Structural Integrity, 2017 Fatigue crack growth (FCG) is associated with irreversible and non-linear processes happening at the crack tip. This explains different problems observed in the use of da/dN-?K curves, namely the inability to explain stress ratio and load history effects.
F.V. Antunes +3 more
doaj +5 more sources
X70 STEEL CRITICAL CTOD VALUE ANSYS CALCULATION
Jixie qiangdu, 2015 With the development of ocean engineering,increase in the number of project exploration of Marine oil and gas,natural gas and oil transportation engineering are increasingly developed.
YE YunQin, MIAO ZhangMu, ZHANG BuAi
doaj +1 more source
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
doaj +3 more sources
Fracture and Structural Integrity, 2022 The third generation Al-Li alloy AA2050-T84 is widely used in aircraft applications due to its lightweight and significant mechanical properties. The anisotropic variations of tensile and compression properties of this alloy at various temperatures are ...
Nagaraj Ekabote +2 more
doaj +1 more source
On the relationship between J-integral and CTOD for CT and SENB specimens
Fracture and Structural Integrity, 2013 In this investigation the relationship between J-integral and CTOD is studied considering a Compact Tensile (CT) and Single edge notched bend (SENB) specimens using finite element analysis.
S. K. Kudari, K.G. Kodancha
doaj +3 more sources
Metals, 2023 The fatigue crack growth-rate test of rail head, waist, and bottom material for U71Mn welded rail was carried out. Digital image correlation (DIC) was used to capture the full-field displacement.
Xiu-Yang Fang +4 more
doaj +1 more source
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 +3 more sources
Measurement and prediction of CTOD in austenitic stainless steel [PDF]
, 2016 Variation of Crack Tip Opening Displacement (CTOD) test values can have a significant effect on the Engineering Critical Assessment of a structure. This paper examines the development of CTOD with increasing load in an austenitic stainless steel.
Anderson +25 more
core +2 more sources