Results 1 to 10 of about 344 (114)

Experimental evaluation of CTOD in constant amplitude fatigue crack growth from crack tip displacement fields [PDF]

open access: yesFracture 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

On the relationship between J-integral and CTOD for CT and SENB specimens

open access: yesFracture 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

Elastic-plastic fracture analysis of anisotropy effect on AA2050-T84 alloy at different temperatures: a numerical study

open access: yesFracture 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

Novel Characterizations of Effective SIFs and Fatigue Crack Propagation Rate of Welded Rail Steel Using DIC

open access: yesMetals, 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

Experimental characterisation of fatigue crack growth based on the CTOD measured from crack tip displacement fields using DIC

open access: yesFracture 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

Experimental and Numerical Investigation on Specimen Geometry Effect on the CTOD Value For VL-E36 Shipbuilding Steel

open access: yesPolish 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
doaj   +1 more source

Influence of Material Thickness on the Ductile Fracture of Steel Plates for Shipbuilding

open access: yesPolish Maritime Research, 2022
In the shipbuilding industry, the risk of brittle fractures is relatively high because some units operate in arctic or subarctic zones and use high thickness (up to 100 mm) steel plates in their structures.
Kowalski Jakub, Kozak Janusz
doaj   +1 more source

Crack Growth in Ni-Cr-Mo-V Steel Using ΔCTOD Elastic–Plastic Model

open access: yesJournal of Marine Science and Engineering, 2022
Many studies have shown that the linear elastic fracture mechanics (LEFM) method based on the stress intensity factor range (ΔK) has limitations that cannot be ignored. Due to neglecting the influence of plastic deformation near the crack tip, LEFM shows
Jingxia Yue   +3 more
doaj   +1 more source

Using 3D Digital Image Correlation (3D-DIC) to Measure CTOD in a Semi-Elliptical Surface Crack

open access: yesProceedings, 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   +1 more source

Evaluation on fracture toughness of welded joint of X65+Inconel 625 composite pipeline

open access: yesYou-qi chuyun, 2020
The fracture failure phenomenon of welded joint of composite pipeline was analyzed in this paper. The fracture toughness of welded joint of X65+Inconel 625 composite pipeline in different zones (weld metal zone, fusion zone and heat affected zone) at 0 ℃
Chenjie LUAN
doaj   +1 more source

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