Results 21 to 30 of about 2,541 (197)

The post-yield fracture of a ductile polymer film: Notch quality, essential work of fracture, crack tip opening displacement, and J-integral [PDF]

open access: yes, 2017
Double edge notched tension (DENT) specimens of a polyethylene terephthalate (PET) film were tested in an universal testing machine, measuring the displacements and the ligament lengths with a digital image correlation (DIC) system.
Arencón Osuna, David   +3 more
core   +2 more sources

Fatigue crack growth in notched specimens: a numerical analysis

open access: yesFracture and Structural Integrity, 2019
Fatigue crack growth (FCG) is linked to irreversible and non-linear processes happening at the crack tip, which explains different problems observed in the use of da/dN-?K curves. The replacement of ?K by non-linear crack tip parameters, namely the crack
F.V. Antunes   +3 more
doaj   +3 more sources

An in-depth investigation into the implications of alleviating banded microstructures on crack-tip opening displacement test of API 5LX60 linepipe steel plate

open access: yesJournal of Materials Research and Technology, 2023
The present study seeks to fill the research gap regarding the correlation between crack-tip opening displacement (CTOD) and banded microstructures of high-strength low-alloy steel.
N. Amirjani   +3 more
doaj   +1 more source

Fatigue fracture surface analysis in C45 steel specimens using X-Ray fractography [PDF]

open access: yes, 1991
X-Ray fractography is a useful technique to analyse the mechanisms operating in fracture and involves an examination of the fracture surface. In the present investigation, this technique has been employed to study the fatigue fracture behaviour of a ...
Kolster, B.H., Pathiraj, B., Rajanna, K.
core   +3 more sources

The effect of mechanical inhomogeneity in microzones of welded joints on CTOD fracture toughness of nuclear thick-walled steel

open access: yesNuclear 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   +1 more source

Simulation of Near-Tip Crack Behaviour and Its Correlation to Fatigue Crack Growth with a Modified Strip-Yield Model [PDF]

open access: yes, 2008
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions.
Chen, Y.K., Tiu, W., Wang, L., Xu, Y.
core   +1 more source

Study of SENT specimens with a tilted notch to evaluate ductile tearing in spiral welded pipeline applications [PDF]

open access: yes, 2015
There is an increasing interest for the use of spiral welded pipelines in strain based design applications. Environmentally imposed loads are able to plastically deform the pipelines, meaning that their structural response is of the utmost importance ...
De Waele, Wim   +4 more
core   +2 more sources

Modelling of Fracture Toughness of X80 Pipeline Steels in DTB Transition Region Involving the Effect of Temperature and Crack Growth

open access: yesMetals, 2019
This work presents an investigation of the effects of temperature and crack growth on cleavage fracture toughness for weld thermal simulated X80 pipeline steels in the ductile-to-brittle transition (DBT) regime.
Jie Xu   +6 more
doaj   +1 more source

A study of the correlation between crack tip opening displacement (CTOD) and stretch zone width (SZW)

open access: yesScripta Metallurgica, 1986
Scripta Metallurgica 20 (1986) 1575-1580.
Department of Materials Science and Engineering University of Florida, Gainesville, Florida, USA ( host institution )   +3 more
openaire   +2 more sources

Elastic-plastic defect interaction in (a)symmetrical double edge notched tension specimens [PDF]

open access: yes, 2017
Interaction of defects tends to intensify their crack driving force response compared to the situation where these defects act independently. The interaction between multiple defects is addressed in engineering critical assessment standards like BS7910 ...
De Waele, Wim   +2 more
core   +3 more sources

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