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Granularity - Wikipedia
en.wikipedia.org/wiki/Granularity Private View
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 ...
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 ...
Coarse Grained Model - an overview | ScienceDirect Topics
www.sciencedirect.com/topics/materials-science/coarse-grained-model Private View
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 ...
Bottom-up Coarse-Graining: Principles and Perspectives
pubs.acs.org/doi/10.1021/acs.jctc.2c00643 Private View
Below, we briefly describe these essential steps required for bottom-up CG modeling and discuss how they are related to the aforementioned challenges. 2-1. Coarse-Grained Mapping. The process of applying a CG mapping reduces the high-dimensional atomistic phase space to a low-dimensional CG phase space.
Below, we briefly describe these essential steps required for bottom-up CG modeling and discuss how they are related to the aforementioned challenges. 2-1. Coarse-Grained Mapping. The process of applying a CG mapping reduces the high-dimensional atomistic phase space to a low-dimensional CG phase space.
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.
Mesoscopic and multiscale modelling in materials - Nature
www.nature.com/articles/s41563-020-00913-0 Private View
Upscaling methods, which link discrete scales (electronic structure, atomistic, coarse-grained atomistic), continuum scales (material constituents and component scales) or combinations of the two ...
Upscaling methods, which link discrete scales (electronic structure, atomistic, coarse-grained atomistic), continuum scales (material constituents and component scales) or combinations of the two ...
Coarse-Grained Modeling of Ion-Containing Polymers
pubs.acs.org/doi/10.1021/acs.chemrev.1c00913 Private View
Coarse-grained modeling provides an efficient approach for exploring the structural and dynamical properties of these soft materials. The unique physicochemical properties of such polymers are of broad interest. In this review, we summarize the current development and understanding of the structure–property relationship of ion-containing ...
Coarse-grained modeling provides an efficient approach for exploring the structural and dynamical properties of these soft materials. The unique physicochemical properties of such polymers are of broad interest. In this review, we summarize the current development and understanding of the structure–property relationship of ion-containing ...
Simulations of Coarse-Grained Materials - NRC
www.nrc.gov/docs/ML2024/ML20241A106.pdf Private View
Simulations in coarse-grained cast austenitic stainless steel (CASS) materials require grain boundary definitions. Photographs from multiple illumination angles capture the grain boundaries of polished and chemically etched sections. Appearance of grain reflections depends on incident light angle.
Simulations in coarse-grained cast austenitic stainless steel (CASS) materials require grain boundary definitions. Photographs from multiple illumination angles capture the grain boundaries of polished and chemically etched sections. Appearance of grain reflections depends on incident light angle.
Coarse-graining auto-encoders for molecular dynamics | npj ...
www.nature.com/articles/s41524-019-0261-5 Private View
Coarse-grained (CG) molecular modeling has been used extensively to simulate complex molecular processes with lower computational cost than all-atom simulations. 1,2 By compressing the full ...
Coarse-grained (CG) molecular modeling has been used extensively to simulate complex molecular processes with lower computational cost than all-atom simulations. 1,2 By compressing the full ...
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.
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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 ...
A machine learning enabled hybrid optimization framework for ... - Nature
www.nature.com/articles/s41524-022-00914-4 Private View
This work presents a framework governing the development of an efficient, accurate, and transferable coarse-grained (CG) model of a polyether material. The framework combines bottom-up and top ...
This work presents a framework governing the development of an efficient, accurate, and transferable coarse-grained (CG) model of a polyether material. The framework combines bottom-up and top ...
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.
Coarse Grained Simulation and Turbulent Material Mixing
link.springer.com/chapter/10.1007/978-3-319-41217-7_21 Private View
J.R. Ristorcelli, Material conservation of passive scalar mixing in finite scale Navier-Stokes fluid turbulence, LA-UR-15-20837, Chapter 4, in Coarse Grained Simulation and Turbulent Mixing, ed. by F.F. Grinstein (Cambridge University Press, 2016) Google Scholar
J.R. Ristorcelli, Material conservation of passive scalar mixing in finite scale Navier-Stokes fluid turbulence, LA-UR-15-20837, Chapter 4, in Coarse Grained Simulation and Turbulent Mixing, ed. by F.F. Grinstein (Cambridge University Press, 2016) Google Scholar
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 ...
(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 ...
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 ...
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 ...
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 ...
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 ...