Results 41 to 50 of about 943,858 (341)
Role of Non-Metallic Inclusions in the Fracture Behavior of Cold Drawn Pearlitic Steel
Metals, 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
Fracture Model Reduction and Optimization for Forchheimer Flows in Reservoir [PDF]
J. Math. Phys. 60, 051504 (2019), 2017 In this study, we analyze the flow filtration process of slightly compressible fluids in fractured porous media. We model the coupled fractured porous media system, where the linear Darcy flow is considered in porous media and the nonlinear Forchheimer equation is used inside the fracture.
arxiv +1 more source
Drawing-Induced Evolution of Inclusions in Cold-Drawn Pearlitic Steel
Metals, 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
Enhancing Understanding of Hydraulic Fracture Tip Advancement through Inversion of Low-Frequency Distributed Acoustic Sensing Data [PDF]
arXiv, 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
Dynamic Fracture Criteria Evaluation of Bridge Structural Steel
The Baltic Journal of Road and Bridge Engineering, 2011 J-integral is the main effective and commonly used tool for elastic-plastic cracked material resistance assessment. Considering ductile behavior of bridges steel integral approach is suitable for fracture toughness evaluation.
Antanas Žiliukas, Marius Gintalas
doaj +1 more source
Morphology of multiple constant height hydraulic fractures versus propagation regime [PDF]
, 2021 The purpose of this study is to investigate morphology of simultaneously propagating hydraulic fractures. Simultaneous propagation of hydraulic fractures occurs during stimulation of horizontal wells, and, in particular, several initiation points or perforation intervals along the well are often used to promote the growth of multiple hydraulic ...
arxiv +1 more source
Imminent risk of fracture after fracture [PDF]
Osteoporosis International, 2016 The risk of major osteoporotic fracture (MOF) after a first MOF is increased over the whole duration of follow-up, but the imminent risk is even higher. If the acute increment in risk in the few years following MOF is amenable to therapeutic intervention, then immediate short-term treatments may provide worthwhile clinical dividends in a very cost ...
Johansson, H. +7 more
openaire +7 more sources
Metals, 2023 The final aim of this paper is to study the microstructural changes in the necking region of progressively cold-drawn pearlitic steel wires by means of a thorough and detailed analysis of pearlite interlamellar spacing and Vickers micro-hardness in this ...
Jesús Toribio +2 more
doaj +1 more source
Applied Sciences, 2017 Prestressing steel wires are commonly used as reinforcement elements in structures bearing fatigue loads. These wires are obtained by a conforming process called cold drawing, where a progressive reduction of the wire diameter is produced, causing ...
Jesús Toribio +3 more
doaj +1 more source