Using 3D Digital Image Correlation (3D-DIC) to Measure CTOD in a Semi-Elliptical Surface Crack
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
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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
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A modified model for calculating crack tip opening displacement (CTOD) considering fracture process zone (FPZ) in rock [PDF]
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
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STUDY ON CRITICAL CTOD OF BIG-THICKNESS AND HIGH-STRENGTH STEELS
Jixie qiangdu, 2015 As one of the essential criteria of assessment to welding toughness,CTOD（ Crack tip opening displacement） is widely applied in engineering.The research on critical CTOD of big thickness and high strength steels has been a hot issue,therefore the ...
XIA ZiYu +4 more
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Influence of the mesh size on plastic CTOD [PDF]
, 2021 The Crack Tip Opening Displacement (CTOD) is an elastic-plastic fracture mechanics parameter usually employed as a measurement of fracture toughness and to explain the fatigue crack growth. This parameter can be decomposed on two different components: the elastic and plastic one.
Sanchez-Mancera, J. +3 more
openaire +3 more sources
Electrostatically Reinforced Double Network Granular Hydrogels. [PDF]
Adv Sci (Weinh)Electrostatically reinforced double network granular hydrogels (DNGHs) with cartilage‐like fracture energy are introduced. An empirical model predicts the composition‐dependent fracture energy based on dissipation zone size, contact area, and inter‐particle adhesion energy. Thanks to their granular structure and the inter‐particle attraction, the DNGHs
Yuan T, Li C, Kolinski JM, Amstad E.
europepmc +2 more sources
Strain Field Around Individual Dislocations Controls Failure. [PDF]
Small MethodsBy conducting in situ transmission electron microscopy strain mapping during a nanoscale fracture experiment, the dislocation processes taking place at the crack tip in the rather brittle metal chromium is detailed. Moreover, for the first time, the local stress fields of the dislocations shielding the crack is directly measured. Abstract Understanding
Gammer C +4 more
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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.
Brown, CJ +8 more
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CHARACTERIZATION OF THREE HIGH YIELD CONSUMABLES FOR CONTINUOUS WIRE WELDING (FCAW) MADE WITH SEAMLESS TECHNOLOGY AND CORRELATION BETWEEN THEIR MICROSTRUCTURE AND FRACTURE TOUGHNESS (CTOD) [PDF]
, 2023 openIl processo di saldatura a filo continuo offre notevoli vantaggi e può essere impiegato nei campi più disparati, dal settore Pipeline allo Shipbuilding, oltre a una spiccata predisposizione dello stesso all'automatizzazione.
BELLONI, MARCO
core
A numerical study of crack shielding and deflection under extensive plasticity [PDF]
, 2009 Experimentally observed crack deflection events in multi-layered material systems, occurring even under pure mode-I loading, are here simulated and explained through elasto-plastic finite element modelling.
Reed, Philippa A.S. +2 more
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