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Granularity - Wikipedia
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Precision and ambiguity. Coarse-grained materials or systems have fewer, larger discrete components than fine-grained materials or systems.. A coarse-grained description of a system regards large subcomponents.; A fine-grained description regards smaller components of which the larger ones are composed.; The concepts granularity, coarseness, and fineness are relative; and are used when ...
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Precision and ambiguity. Coarse-grained materials or systems have fewer, larger discrete components than fine-grained materials or systems.. A coarse-grained description of a system regards large subcomponents.; A fine-grained description regards smaller components of which the larger ones are composed.; The concepts granularity, coarseness, and fineness are relative; and are used when ...
Differences Between Coarse-Grained and Fine-Grained Soil
theconstructor.org/geotechnical/coarse-fine-grained-soil/26299 Private View
Coarse-grained soils have 50% or less material passing the No. 200 sieve. Fine-grained soils have 50% or more material passing the No. 200 sieve. Engineering properties such as strength and compressibility of coarse-grained soil are governed by the grain-size of the particles and their structural arrangement.
Coarse-grained soils have 50% or less material passing the No. 200 sieve. Fine-grained soils have 50% or more material passing the No. 200 sieve. Engineering properties such as strength and compressibility of coarse-grained soil are governed by the grain-size of the particles and their structural arrangement.
6 TYPES OF BACKFILL MATERIALS USED IN CONSTRUCTION
civilblog.org/2016/03/04/6-types-of-backfill-materials-used-in-construction Private View
Backfill materials that are commonly used are described below with their engineering properties. 1. Coarse-grained soils. Coarse-grained soils include gravelly and sandy soils and range from clayey sands ( SC) through the well-graded gravels of gravel-sand mixtures ( GW) with little or no fines. They will exhibit slight to no plasticity.
Backfill materials that are commonly used are described below with their engineering properties. 1. Coarse-grained soils. Coarse-grained soils include gravelly and sandy soils and range from clayey sands ( SC) through the well-graded gravels of gravel-sand mixtures ( GW) with little or no fines. They will exhibit slight to no plasticity.
Ultrasonic signal enhancement for coarse grain materials by machine ...
www.sciencedirect.com/science/article/pii/S0041624X21001773 Private View
1. Introduction. It is well-recognized that the coarse grained materials, such as austenitic stainless steel, present high attenuation and scattering of ultrasonic wave due to the presence of lots of grain boundaries inside this kind of materials [1].When a coarse-grained material is detected by ultrasonic testing (UT), flaw echoes will probably be submerged in noise background resulting from ...
1. Introduction. It is well-recognized that the coarse grained materials, such as austenitic stainless steel, present high attenuation and scattering of ultrasonic wave due to the presence of lots of grain boundaries inside this kind of materials [1].When a coarse-grained material is detected by ultrasonic testing (UT), flaw echoes will probably be submerged in noise background resulting from ...
Coarse Grained Model - an overview | ScienceDirect Topics
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Coarse-grained models. Coarse-grained models are aimed at building simplified representations of complex systems that allow keeping the main chemical/physical peculiarities (such as the interplay between hydrophilic and hydrophobic effects) and performing affordable and meaningful simulations, which could not be feasible with, for example ...
Coarse-grained models. Coarse-grained models are aimed at building simplified representations of complex systems that allow keeping the main chemical/physical peculiarities (such as the interplay between hydrophilic and hydrophobic effects) and performing affordable and meaningful simulations, which could not be feasible with, for example ...
COARSE-GRAINED definition | Cambridge English Dictionary
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COARSE-GRAINED meaning: 1. Coarse-grained rock, soil, paper, material, etc. is rough, or has pieces in it that are larger…. Learn more.
COARSE-GRAINED meaning: 1. Coarse-grained rock, soil, paper, material, etc. is rough, or has pieces in it that are larger…. Learn more.
A state-dependent bounding surface model of coarse-grained materials ...
www.sciencedirect.com/science/article/pii/S0266352X2400123X Private View
The proposed model was used to simulate the stress–strain behavior of two types of coarse-grained soils, i.e., rockfill materials and Cape-May coarse-grained soils. Firstly, the proposed model is verified by drained triaxial compression tests of the rockfill materials with different consolidation pressures and initial GSDs.
The proposed model was used to simulate the stress–strain behavior of two types of coarse-grained soils, i.e., rockfill materials and Cape-May coarse-grained soils. Firstly, the proposed model is verified by drained triaxial compression tests of the rockfill materials with different consolidation pressures and initial GSDs.
Ultrafine-Grained Materials | SpringerLink
link.springer.com/chapter/10.1007/978-3-030-80359-9_17 Private View
The common grain size of the metals in the industry is >10 μm and are called coarse-grained materials [ 16 ]. Fine-grained metals that are processed using industrial thermomechanical processing have a grain size of ∼1–10 μm. It is hard to achieve a metal with grain size <1 μm (called ultrafine grained) or <100 nm (called nanograined ...
The common grain size of the metals in the industry is >10 μm and are called coarse-grained materials [ 16 ]. Fine-grained metals that are processed using industrial thermomechanical processing have a grain size of ∼1–10 μm. It is hard to achieve a metal with grain size <1 μm (called ultrafine grained) or <100 nm (called nanograined ...
(PDF) Geotechnical Characterisation of Coarse-Grained ... - ResearchGate
www.researchgate.net/publication/322653197_Geotechnical_Characterisation_of... Private View
The geotechnical characterization of coarse granular materials such as very coarse-grained soils, rockfills, mining waste rocks and related materials is one of the key themes in geotechnical ...
The geotechnical characterization of coarse granular materials such as very coarse-grained soils, rockfills, mining waste rocks and related materials is one of the key themes in geotechnical ...
Coarse-graining strategies for predicting properties of ... - Springer
link.springer.com/article/10.1557/s43578-021-00332-0 Private View
The ability of atomistic and coarse-grained models to discern between two polymers of very similar architecture is examined. To this end, polyether ether ketone (PEEK) and polyether ketone ketone (PEKK) are chosen. The difference in glass transition temperature and the similarity in compressive responses of the two polymers are captured by all-atom models. A coarse-graining scheme, with 6 ...
The ability of atomistic and coarse-grained models to discern between two polymers of very similar architecture is examined. To this end, polyether ether ketone (PEEK) and polyether ketone ketone (PEKK) are chosen. The difference in glass transition temperature and the similarity in compressive responses of the two polymers are captured by all-atom models. A coarse-graining scheme, with 6 ...
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Coarse-grained Dynamics Simulation in Polymer Systems: from ... - Springer
link.springer.com/article/10.1007/s40242-022-2080-3 Private View
Based on recent studies in our group, the main progress of coarse-grained simulation methods in studying the structure, properties and physical mechanism of polymer materials is reviewed. It is anticipated to provide a reference for further development of coarse-grained simulation methods and software suitable for polymer research.
Based on recent studies in our group, the main progress of coarse-grained simulation methods in studying the structure, properties and physical mechanism of polymer materials is reviewed. It is anticipated to provide a reference for further development of coarse-grained simulation methods and software suitable for polymer research.
Uncertainty driven active learning of coarse grained free ... - Nature
www.nature.com/articles/s41524-023-01183-5 Private View
This would allow for more rapid development of coarse grained models in materials screening settings. We emphasize that there is a tradeoff in single- and two-species representations for ...
This would allow for more rapid development of coarse grained models in materials screening settings. We emphasize that there is a tradeoff in single- and two-species representations for ...
Approaches and Perspective of Coarse-Grained Modeling and Simulation ...
pubs.acs.org/doi/10.1021/acsomega.2c06248 Private View
Molecular modeling and simulations have emerged as effective and indispensable tools to characterize polymeric systems. They provide fundamental and essential insights to design a product of the required properties and to improve the understanding of a phenomenon at the molecular level for a particular system. The polymer–nanoparticle hybrids are materials with outstanding properties and ...
Molecular modeling and simulations have emerged as effective and indispensable tools to characterize polymeric systems. They provide fundamental and essential insights to design a product of the required properties and to improve the understanding of a phenomenon at the molecular level for a particular system. The polymer–nanoparticle hybrids are materials with outstanding properties and ...
WHAT ARE THE DIFFERENCES BETWEEN COARSE GRAINED & FINE GRAINED SOIL ...
civilblog.org/2014/02/10/what-are-the-differences-between-coarse-grained-soil... Private View
Soil in an engineering sense is a relatively loose agglomerate of mineral and organic materials and sediments found above bedrock. Texturally the soil is divided into two primary groups. Coarse grained soil; Fine grained soil; The behavior of coarse grained soil is different from fine grained soil.
Soil in an engineering sense is a relatively loose agglomerate of mineral and organic materials and sediments found above bedrock. Texturally the soil is divided into two primary groups. Coarse grained soil; Fine grained soil; The behavior of coarse grained soil is different from fine grained soil.
Mechanical Modeling of Frozen Coarse-Grained Materials ... - Hindawi
www.hindawi.com/journals/amse/2021/6639428 Private View
In the cold regions of China, coarse-grained materials are frequently encountered or used as backfilling materials in infrastructure construction, such as dams, highways, railways, and mineral engineering structures. Effects of confining pressure (0.2, 0.5, and 1 MPa) and frozen temperature (−2, −5, −10, and −15°C) on the stress-strain response and elastic modulus were ...
In the cold regions of China, coarse-grained materials are frequently encountered or used as backfilling materials in infrastructure construction, such as dams, highways, railways, and mineral engineering structures. Effects of confining pressure (0.2, 0.5, and 1 MPa) and frozen temperature (−2, −5, −10, and −15°C) on the stress-strain response and elastic modulus were ...
Coarse‐grained approach to amorphous and anisotropic materials in ...
onlinelibrary.wiley.com/doi/10.1002/ppap.202100179 Private View
The growth of TiO 2 and ZnO thin films is studied by means of coarse-grained kinetic Monte Carlo simulations under conditions typically encountered in plasma-enhanced chemical vapor deposition experiments. The basis of our approach is known to work well to simulate the growth of amorphous materials using cubic grids and is extended here to reproduce not only the morphological characteristics ...
The growth of TiO 2 and ZnO thin films is studied by means of coarse-grained kinetic Monte Carlo simulations under conditions typically encountered in plasma-enhanced chemical vapor deposition experiments. The basis of our approach is known to work well to simulate the growth of amorphous materials using cubic grids and is extended here to reproduce not only the morphological characteristics ...
Constitutive Modeling of Coarse-Grained Materials Incorporating the ...
ascelibrary.org/doi/10.1061/(ASCE)GM.1943-5622.0000759 Private View
Coarse-grained materials (CGMs), including gravel, ballast, and rockfill material, exhibit a complicated stress-strain-volume change behavior, which is state dependent and influenced by considerable particle breakage even under relatively low pressure.
Coarse-grained materials (CGMs), including gravel, ballast, and rockfill material, exhibit a complicated stress-strain-volume change behavior, which is state dependent and influenced by considerable particle breakage even under relatively low pressure.
Modeling the mechanical behavior of coarse-grained soil ... - Springer
link.springer.com/article/10.1007/s11440-020-01007-6 Private View
Systematic investigation of the effects of individual particle properties, such as shape, size, surface roughness, and constituent materials stiffness, on the behavior of coarse-grained soils requires careful control over the other particle properties. Achieving this control is a pervasive challenge in investigations with naturally occurring soils. The rapid advance of modern additive ...
Systematic investigation of the effects of individual particle properties, such as shape, size, surface roughness, and constituent materials stiffness, on the behavior of coarse-grained soils requires careful control over the other particle properties. Achieving this control is a pervasive challenge in investigations with naturally occurring soils. The rapid advance of modern additive ...
Evolution of particle crushing of coarse-grained materials in large ...
www.cgejournal.com/en/article/doi/10.11779/CJGE202003018?viewType=citedby-info Private View
A series of consolidated drained large-scale triaxial tests are conducted for the coarse-grained materials (CGMs). The evolution of particle grading and breakage is analyzed, and some mathematical formulations are presented for various breakage indexes, ...
A series of consolidated drained large-scale triaxial tests are conducted for the coarse-grained materials (CGMs). The evolution of particle grading and breakage is analyzed, and some mathematical formulations are presented for various breakage indexes, ...
The Scale Effect of Coarse-Grained Materials by Triaxial Test ... - Hindawi
www.hindawi.com/journals/ace/2021/6665531 Private View
The scale effect is an unavoidable problem in the laboratory test of coarse-grained materials. By combining the self-developed cellular automaton program with laboratory experiments, a method of simulating the triaxial test of coarse-grained materials was proposed in this paper, and a triaxial test numerical specimen that can characterize the discontinuous, nonuniform, and heterogeneous ...
The scale effect is an unavoidable problem in the laboratory test of coarse-grained materials. By combining the self-developed cellular automaton program with laboratory experiments, a method of simulating the triaxial test of coarse-grained materials was proposed in this paper, and a triaxial test numerical specimen that can characterize the discontinuous, nonuniform, and heterogeneous ...