Macroscopic scale
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A Review of Particle Shape Effects on Material Properties for Various Engineering Applications: From Macro to Nanoscale Open
It is well known that most particle technology studies attempting to predict secondary properties based on primary properties such as size and shape begin with particle characterization, which means the process of determining the primary p…
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Capillary-Dominated Fluid Displacement in Porous Media Open
Liquid invasion into a porous medium is a phenomenon of great importance in both nature and technology. Despite its enormous importance, there is a surprisingly sparse understanding of the processes occurring on the scale of individual por…
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Nanoporous Gold—Testing Macro-scale Samples to Probe Small-scale Mechanical Behavior Open
Nanoporous gold made by dealloying exemplifies how the exciting mechanical properties of nanoscale objects can be exploited in designing materials from which macroscopic things can be formed. The homogeneous microstructure and the possibil…
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Multiscale modeling of lithium ion batteries: thermal aspects Open
The thermal behavior of lithium ion batteries has a huge impact on their lifetime and the initiation of degradation processes. The development of hot spots or large local overpotentials leading, e.g., to lithium metal deposition depends on…
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The mechanical properties of shale based on micro-indentation test Open
In view of the difficulty to get mechanical characteristics of shale reservoirs, a quantitative evaluation method based on micro-indentation test technology was proposed to research the meso-mechanical properties of shale. Through micro-in…
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Theory of cross phenomena and their coefficients beyond Onsager theorem Open
Cross phenomena, representing responses of a system to external stimuli, are ubiquitous from quantum to macro scales. The Onsager theorem is often used to describe them, stating that the coefficient matrix of cross phenomena connecting the…
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Scaling Effects on Materials Tribology: From Macro to Micro Scale Open
The tribological study of materials inherently involves the interaction of surface asperities at the micro to nanoscopic length scales. This is the case for large scale engineering applications with sliding contacts, where the real area of…
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Drying regimes in homogeneous porous media from macro- to nanoscale Open
International audience
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Softness, Elasticity, and Toughness of Polymer Networks with Slide-Ring Cross-Links Open
Slide-ring (SR) gels cross-linked by ring molecules are characterized by softness (low Young’s modulus), elasticity (low hysteresis loss), and toughness (large fracture energy). In this article, the mechanical and fracture properties of SR…
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Fluid flow in fractured and fracturing porous media: A unified view Open
Fluid flow in fractures that pre-exist or propagate in a porous medium can have a major influence on the deformation and flow characteristics. With the aim of carrying out large-scale calculations at reasonable computing costs, a sub-grid …
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Material modeling of Ti–6Al–4V alloy processed by laser powder bed fusion for application in macro-scale process simulation Open
In the laser powder bed fusion of metals (PBF-LB/M), process simulation is a key factor to the optimization of the manufacturing process with reasonable amounts of resources. While the focus of research lies on the development of approache…
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Flow and Transport in Tight and Shale Formations: A Review Open
A review on the recent advances of the flow and transport phenomena in tight and shale formations is presented in this work. Exploration of oil and gas in resources that were once considered inaccessible opened the door to highlight intere…
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Molecular Simulation of Cement-Based Materials and Their Properties Open
Hydrated cement is one of the complex composite systems due to the presence of multi-scale phases with varying morphologies. Calcium silicate hydrate, which is the principal binder phase in the hydrated cement, is responsible for the stiff…
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Measuring the Effect of Strain Rate on Deformation and Damage in Fibre-Reinforced Composites: A Review Open
This review aims to assess publications relevant to understanding the rate-dependent dynamic behaviour of glass- and carbon-fibre reinforced polymer composites (FRPs). FRPs are complex structures composed of fibres embedded in a polymer ma…
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Micro-macro mechanics of damage and healing in rocks Open
This paper presents the state of the art of the theory of rock damage and healing mechanics, with a particular emphasis on the strategies available to relate the micro-scale of crystals, cracks and pores to the scale of a Representative El…
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Transport of complex and active fluids in porous media Open
Complex and active fluids find broad applications in flows through porous materials. Nontrivial rheology can couple to porous microstructure leading to surprising flow patterns and associated transport properties in geophysical, biological…
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Live Imaging of Micro-Wettability Experiments Performed for Low-Permeability Oil Reservoirs Open
Low-permeability (unconventional) hydrocarbon reservoirs exhibit a complex nanopore structure and micro (µm) -scale variability in composition which control fluid distribution, displacement and transport processes. Conventional methods for…
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Continuum‐scale characterization of solute transport based on pore‐scale velocity distributions Open
We present a methodology to characterize a continuum‐scale model of transport in porous media on the basis of pore‐scale distributions of velocities computed in three‐dimensional pore‐space images. The methodology is tested against pore‐sc…
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On the damage and fracture of nuclear graphite at multiple length-scales Open
Gilsocarbon graphite, as a neutron moderator and load-bearing component in the core of the UK fleet of Advanced Gas-Cooled Reactors, possesses complex microstructural features including defects/pores over a range of length-scales from nano…
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A review of recent trends and challenges in numerical modeling of the anisotropic behavior of hardened 3D printed concrete Open
The rapid development of 3D printed concrete (3DPC) technology, in particular the integration of reinforcement into the components, emphasizes the need for accurate prediction of structural performance in the hardened state. This pressing …
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Multi-scale modelling of concrete structures affected by alkali-silica reaction: Coupling the mesoscopic damage evolution and the macroscopic concrete deterioration Open
A finite-element approach based on the first-order FE 2 homogenisation\ntechnique is formulated to analyse the alkali-silica reaction-induced damage in\nconcrete structures, by linking the concrete degradation at the macro-scale to\nthe re…
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Computational homogenisation of phase-field fracture Open
In this manuscript, the computational homogenisation of phase-field fractures is addressed. To this end, a variationally consistent two-scale phase-field fracture framework is developed, which formulates the coupled momentum balance and ph…
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Selective liquid directional steering enabled by dual-scale reentrant ratchets Open
Achieving well-controlled directional steering of liquids is of great significance for both fundamental study and practical applications, such as microfluidics, biomedicine, and heat management. Recent advances allow liquids with different…
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Multiscale modelling of material degradation and failure in plain woven composites: A novel approach for reliable predictions enabled by meta-models Open
In this paper a multiscale method for modelling damage evolution at meso and macro scales with application to plain woven composites is presented for the first time. The method couples the macro and micro-scale simulations using an averagi…
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Three-Dimensional Laser Printing of Macro-Scale Glass Objects at a Micro-Scale Resolution Open
Three-dimensional (3D) printing has allowed for the production of geometrically complex 3D objects with extreme flexibility, which is currently undergoing rapid expansion in terms of materials, functionalities, as well as areas of applicat…
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Phonon Engineering of Micro‐ and Nanophononic Crystals and Acoustic Metamaterials: A Review Open
Phononic crystals (PnCs) and acoustic metamaterials (AMMs) are artificially architected materials endowed with the capabilities of wave manipulation. This review specifically covers the theoretical fundamentals and recent development of Pn…
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Upscaling Cement Paste Microstructure to Obtain the Fracture, Shear, and Elastic Concrete Mechanical LDPM Parameters Open
Modeling the complex behavior of concrete for a specific mixture is a challenging task, as it requires bridging the cement scale and the concrete scale. We describe a multiscale analysis procedure for the modeling of concrete structures, i…
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A combined method for correlative 3D imaging of biological samples from macro to nano scale Open
Correlative analysis requires examination of a specimen from macro to nano scale as well as applicability of analytical methods ranging from morphological to molecular. Accomplishing this with one and the same sample is laborious at best, …
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From macro-, through meso- to micro-scale: Densification behavior, deformation response and microstructural evolution of selective laser melted Mg-RE alloy Open
To clarify the densification behavior, deformation response and strengthening mechanisms of selective laser melted (SLM) Mg-RE alloys, this study systematically investigates a representative WE43 alloy via advanced material characterizatio…
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Connecting Hindered Transport in Porous Media across Length Scales: From Single-Pore to Macroscopic Open
Hindered mass transport is widely observed in various porous media; however, there is no universal model capable of predicting transport in porous media due to the heterogeneity of porous structures and the complexity of the underlying mic…