Results 41 to 50 of about 1,841,621 (375)

Tensile Fracture Behavior of Progressively-Drawn Pearlitic Steels

open access: yesMetals, 2016
In this paper a study is presented of the tensile fracture behavior of progressively-drawn pearlitic steels obtained from five different cold-drawing chains, including each drawing step from the initial hot-rolled bar (not cold-drawn at all) to the final
Jesús Toribio   +5 more
doaj   +1 more source

Role of Non-Metallic Inclusions in the Fracture Behavior of Cold Drawn Pearlitic Steel

open access: yesMetals, 2021
In this paper an exhaustive scientific work is performed, by means of metallographic and scanning electron microscope (SEM) techniques, of the microstructural defects exhibited by pearlitic steels and their evolution with the manufacturing process by ...
Jesús Toribio   +2 more
doaj   +1 more source

Drawing-Induced Evolution of Inclusions in Cold-Drawn Pearlitic Steel

open access: yesMetals, 2021
This article focuses on the analysis of the evolution of inclusions present in eutectoid pearlitic steel subjected to a real cold drawing process. To this end, wires belonging to different stages of the manufacture chain were studied, starting from an ...
Jesús Toribio   +2 more
doaj   +1 more source

Age-related changes to macrophages are detrimental to fracture healing in mice. [PDF]

open access: yes, 2020
The elderly population suffers from higher rates of complications during fracture healing that result in increased morbidity and mortality. Inflammatory dysregulation is associated with increased age and is a contributing factor to the myriad of age ...
Brazina, Sloane   +8 more
core   +2 more sources

Multi-scale approach to invasion percolation of rock fracture networks [PDF]

open access: yesJournal of Hydrology 519, 353 (2014), 2014
A multi-scale scheme for the invasion percolation of rock fracture networks with heterogeneous fracture aperture fields is proposed. Inside fractures, fluid transport is calculated on the finest scale and found to be localized in channels as a consequence of the aperture field. The channel network is characterized and reduced to a vectorized artificial
arxiv   +1 more source

Fracture Propagation Driven by Fluid Outflow from a Low-permeability Aquifer [PDF]

open access: yes, 2013
Deep saline aquifers are promising geological reservoirs for CO2 sequestration if they do not leak. The absence of leakage is provided by the caprock integrity.
DT Snow   +17 more
core   +1 more source

Enhancing Understanding of Hydraulic Fracture Tip Advancement through Inversion of Low-Frequency Distributed Acoustic Sensing Data [PDF]

open access: yesarXiv, 2023
Characterizing the fluid-driven fracture tip advancing process presents a significant challenge due to the difficulty of replicating real-world conditions in laboratory experiments and the lack of precise field measurements. However, recent advances in low-frequency distributed acoustic sensing (LF-DAS) technology offer new opportunities to investigate
arxiv  

Fracture energy of gels

open access: yes, 2000
To clarify effects of crack speed and cross-link density on fracture energy of acrylamide gels, we evaluated the roughness of the fracture surface and measured the fracture energy taking into account the roughness.
Fukao, Koji   +2 more
core   +3 more sources

Downscaling of fracture energy during brittle creep experiments [PDF]

open access: yes, 2011
We present mode 1 brittle creep fracture experiments along fracture surfaces that contain strength heterogeneities. Our observations provide a link between smooth macroscopic time-dependent failure and intermittent microscopic stress-dependent processes.
Ampuero, J.-P.   +5 more
core   +4 more sources

Stress Intensity Factor Solutions for Eccentric Annular External Cracks in Notched Round Bars under Tensile Loading

open access: yesMetals, 2023
In this paper, stress intensity factor (SIF) solutions of eccentric annular external cracks in elliptical notched round bars under tension loading have been obtained from 3D finite element analysis, along with their relation to the energy release rate ...
Jesús Toribio   +3 more
doaj   +1 more source

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