Results 11 to 20 of about 5,797 (224)

Electrostatically Reinforced Double Network Granular Hydrogels. [PDF]

open access: yesAdv 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]

open access: yesSmall Methods
By 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
europepmc   +2 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

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

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

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

Measurement and prediction of CTOD in austenitic stainless steel [PDF]

open access: yes, 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

Experimental and Numerical Analysis of Fracture in 41Cr4 Steel – Issues of the Stationary Cracks

open access: yesInternational Journal of Applied Mechanics and Engineering, 2018
This paper analyzes the process of fracture in 41Cr4 steel on the basis of experimental and numerical data obtained for non-propagating cracks. The author’s previous and latest experimental results were used to determine the apparent crack initiation ...
M. Graba
doaj   +1 more source

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