Results 21 to 30 of about 177,003 (269)

Development and validation of model for sand

open access: yesEPJ Web of Conferences, 2015
There is a growing requirement within QinetiQ to develop models for assessments when there is very little experimental data. A theoretical approach to developing equations of state for geological materials has been developed using Quantitative Structure ...
Church P.   +6 more
doaj   +1 more source

Influence of Surface Roughness on the High Temperature /High Strain Low Cycle Fatigue Behavior of Nickel-Based Superalloy Rene®80 [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Since fatigue cracks nucleate and initiate generally at the surface of the rotary components such as blades and discs, the surface condition is the most important factor affecting the fatigue life.
Mohammad Mehdi Barjesteh
doaj   +1 more source

Characterization of SPCC Steel Stress Behaviour in Brine Water Environment

open access: yesInternational Journal of Electrochemical Science, 2019
Stress corrosion cracking of steel-plate cold-rolled commercial (SPCC) steel during slow-strain-rate tests (SSRT) in two conditions, i.e., in air and brine water, was investigated in this study.
Chien-Hung Lin, Jia-Ren Lee
doaj   +1 more source

Chalk fractures geometry: a comprehensive description of fracture surfaces

open access: yesEngineering in Chalk, 2018
ABSTRACT Beyond the fundamental identification and characterisation of faults and joints in chalk, the fine description of fracture permeability, by means of analysing roughness, preferential flow channels and related tortuosity, is crucial in multiple applications such as underground stability studies, tunnelling, oil and gas production and related ...
Wattier, Marie-Laure   +3 more
openaire   +2 more sources

Roughness of fracture surfaces [PDF]

open access: yesEurophysics Letters (EPL), 2000
We study the fracture surface of three dimensional samples through a model for quasi-static fractures known as Born Model. We find for the roughness exponent a value of 0.5 expected for ``small length scales'' in microfracturing experiments. Our simulations confirm that at small length scales the fracture can be considered as quasi-static. The isotropy
Parisi A., Caldarelli G., Pietronero L.
openaire   +4 more sources

Investigation on microstructure, hardness, wear behavior and fracture surface analysis of Strontium (Sr) and Calcium (Ca) content A357 modified alloy by statistical technique

open access: yesFracture and Structural Integrity, 2023
The aluminum alloy are extensively used in several industrial applications. Stir casting is one of the most frequently accepted methods. In the present investigation, how the microstructure, mechanical and wear mechanics of A357 alloy were impacted by ...
K. Ganesh   +3 more
doaj   +1 more source

A Comparison of Tensile Properties of Single-Sided and Double-Sided Laser Welded DP600 Steel Sheets

open access: yesMedžiagotyra, 2019
Dual Phase (DP) steels are the most commonly used steels in the automotive industry to reduce vehicle weight and improve car safety. DP600 steel is one of the most used steels for the automotive industry because this steel has high strength and good ...
Oguz TUNCEL, Hakan AYDIN
doaj   +1 more source

Fracture Surface Investigations of Api Pipes Welded With Parameters Determined By Taguchi Method

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In this study,SEM images of the samples taken from welded nick break tests of API 5L X65 pipejoints, whose welding parameters were determined by Taguchi method, wereexamined. As a result of the investigations, the elongations and orientationsexhibited by
Elif Aşıkuzun   +3 more
doaj   +1 more source

A Tool for Predicting the Effect of the Plunger Motion Profile on the Static Properties of Aluminium High Pressure Die Cast Components

open access: yesMetals, 2018
The availability of tools for predicting quality in high pressure die casting is a challenging issue since a large amount of defects is detected in components with a consequent worsening of the mechanical behavior.
Elena Fiorese   +2 more
doaj   +1 more source

Ofatumumab in Myelin Oligodendrocyte Glycoprotein Antibody–Associated Disease: A Comparison With Rituximab

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the efficacy and safety of ofatumumab in patients with myelin oligodendrocyte glycoprotein antibody–associated disease (MOGAD), and compare it with rituximab. Methods We conducted a single–center, observational study including 22 MOGAD patients treated with ofatumumab and 21 treated with rituximab.
Yuxin Fan   +5 more
wiley   +1 more source

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