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Artykuły w czasopismach na temat „Multiscale deformations”

Autor: Grafiati

Data publikacji: 25 stycznia 2025

Data aktualizacji: 31 lipca 2025

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1

Shahi, Shahrokh, and Soheil Mohammadi. "A Multiscale Finite Element Simulation of Human Aortic Heart Valve." Applied Mechanics and Materials 367 (August 2013): 275–79. http://dx.doi.org/10.4028/www.scientific.net/amm.367.275.

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Some of the heart valve diseases can be treated by surgical replacement with either a mechanical or bioprosthetic heart valve (BHV). Recently, tissue-engineered heart valves (TEHVs) have been proposed to be the ultimate solution for treating valvular heart disease. In order to improve the durability and design of artificial heart valves, recent studies have focused on quantifying the biomechanical interaction between the organ, tissue, and cellular –level components in native heart valves. Such data is considered fundamental to designing improved BHVs. Mechanical communication from the larger

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LI, ZHIPING. "MULTISCALE MODELLING AND COMPUTATION OF MICROSTRUCTURES IN MULTI-WELL PROBLEMS." Mathematical Models and Methods in Applied Sciences 14, no. 09 (2004): 1343–60. http://dx.doi.org/10.1142/s0218202504003647.

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A multiscale model and numerical method for computing microstructures with large and inhomogeneous deformation is established, in which the microscopic and macroscopic information is recovered by coupling the finite order rank-one convex envelope and the finite element method. The method is capable of computing microstructures which are locally finite order laminates. Numerical experiments on a double-well problem show that plenty of stress free large deformations can be achieved by microstructures consisting of piecewise simple twin laminates.

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Brozzetti, Francesco, Alessandro Cesare Mondini, Cristina Pauselli, et al. "Mainshock Anticipated by Intra-Sequence Ground Deformations: Insights from Multiscale Field and SAR Interferometric Measurements." Geosciences 10, no. 5 (2020): 186. http://dx.doi.org/10.3390/geosciences10050186.

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The 2016 Central Italy seismic sequence was characterized by two main events: 24 August, Mw 6, and 30 October, Mw 6.5. We carried out high-resolution field sampling and DInSAR analysis of the coseismic and intra-sequence ground deformations along the Mt Vettore-Mt Bove causative fault (VBF). We found that during the intra-sequence period (24 August–30 October), the ground experienced some deformations whose final patterns seemed to be retraced and amplified by the following mainshock. We interpreted that (i) immediately after the 24 August earthquake, the deformation observed in the southern V

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4

Efendiev, Yalchin, Juan Galvis, and M. Sebastian Pauletti. "Multiscale Finite Element Methods for Flows on Rough Surfaces." Communications in Computational Physics 14, no. 4 (2013): 979–1000. http://dx.doi.org/10.4208/cicp.170512.310113a.

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AbstractIn this paper, we present the Multiscale Finite Element Method (MsFEM) for problems on rough heterogeneous surfaces. We consider the diffusion equation on oscillatory surfaces. Our objective is to represent small-scale features of the solution via multiscale basis functions described on a coarse grid. This problem arises in many applications where processes occur on surfaces or thin layers. We present a unified multiscale finite element framework that entails the use of transformations that map the reference surface to the deformed surface. The main ingredients of MsFEM are (1) the con

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5

Zewail, Rami, and Ahmed Hag-ElSafi. "MULTISCALE SPARSE APPEARANCE MODELING AND SIMULATION OF PATHOLOGICAL DEFORMATIONS." ICTACT Journal on Image and Video Processing 8, no. 1 (2017): 1596–605. http://dx.doi.org/10.21917/ijivp.2017.0225.

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Grondin, F., M. Bouasker, P. Mounanga, A. Khelidj, and A. Perronnet. "Physico-chemical deformations of solidifying cementitious systems: multiscale modelling." Materials and Structures 43, no. 1-2 (2009): 151–65. http://dx.doi.org/10.1617/s11527-009-9477-z.

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Bakhaty, Ahmed A., Sanjay Govindjee, and Mohammad R. K. Mofrad. "A Coupled Multiscale Approach to Modeling Aortic Valve Mechanics in Health and Disease." Applied Sciences 11, no. 18 (2021): 8332. http://dx.doi.org/10.3390/app11188332.

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Mechano-biological processes in the aortic valve span multiple length scales ranging from the molecular and cell to tissue and organ levels. The valvular interstitial cells residing within the valve cusps sense and actively respond to leaflet tissue deformations caused by the valve opening and closing during the cardiac cycle. Abnormalities in these biomechanical processes are believed to impact the matrix-maintenance function of the valvular interstitial cells, thereby initiating valvular disease processes such as calcific aortic stenosis. Understanding the mechanical behavior of valvular int

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Karmarkar, Aditya P., Xiaopeng Xu, and Karim El-Sayed. "Temperature and Process Dependent Material Characterization and Multiscale Stress Evolution Analysis for Performance and Reliability Management under Chip Package Interaction." International Symposium on Microelectronics 2017, no. 1 (2017): 000013–24. http://dx.doi.org/10.4071/isom-2017-tp13_051.

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Abstract Distinct temperature and process dependent deformation behaviors under packaging temperature cycles are characterized for various packaging materials. Substrate and underfill deformations are described using Maxwell viscoelasticity model. Solder bump deformation is represented by incremental plasticity model. Anisotropic deformation in silicon and orthotropic deformation in substrate are also considered. The material deformation effects on stress evolutions during fabrication and under chip package interaction (CPI) are analyzed for a large package structure. Complex geometries spread

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9

Zhou, Tingtao, Katerina Ioannidou, Franz-Josef Ulm, Martin Z. Bazant, and R. J. M. Pellenq. "Multiscale poromechanics of wet cement paste." Proceedings of the National Academy of Sciences 116, no. 22 (2019): 10652–57. http://dx.doi.org/10.1073/pnas.1901160116.

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Capillary effects, such as imbibition drying cycles, impact the mechanics of granular systems over time. A multiscale poromechanics framework was applied to cement paste, which is the most common building material, experiencing broad humidity variations over the lifetime of infrastructure. First, the liquid density distribution at intermediate to high relative humidity is obtained using a lattice gas density functional method together with a realistic nanogranular model of cement hydrates. The calculated adsorption/desorption isotherms and pore size distributions are discussed and compare well

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10

Sotiropoulos, Gerasimos, and Vissarion Papadopoulos. "Nonlinear multiscale modeling of thin composite shells at finite deformations." Computer Methods in Applied Mechanics and Engineering 391 (March 2022): 114572. http://dx.doi.org/10.1016/j.cma.2022.114572.

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11

Matous, Karel, and Antoinette M. Maniatty. "Multiscale modeling of elasto-viscoplastic polycrystals subjected to finite deformations." Interaction and multiscale mechanics 2, no. 4 (2009): 375–96. http://dx.doi.org/10.12989/imm.2009.2.4.375.

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12

Falk, Korbinian, Ronny Lang, and Michael Kaliske. "Multiscale Simulation to Determine Rubber Friction on Asphalt Surfaces." Tire Science and Technology 44, no. 4 (2016): 226–47. http://dx.doi.org/10.2346/tire.16.440401.

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ABSTRACT The interaction between rubber and asphalt pavement depends on the roughness characteristics of the road surface, as well as the contact pressure, slip velocity, and temperature. A homogenization procedure of rubber friction, based on the finite element method, is presented, in order to gain surface dependent friction properties by numerical simulation. Furthermore, the method allows a deep insight into microscale phenomena, like real contact area, microscopic contact pressure, or flash temperature. Rubber undergoes large deformations in contact with rough surfaces. Therefore, the mat

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13

TAKASAKI, KANEHISA, and TOSHIO NAKATSU. "ISOMONODROMIC DEFORMATIONS AND SUPERSYMMETRIC GAUGE THEORIES." International Journal of Modern Physics A 11, no. 31 (1996): 5505–18. http://dx.doi.org/10.1142/s0217751x96002522.

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Seiberg-Witten solutions of four-dimensional supersymmetric gauge theories possess rich but involved integrable structures. The goal of this paper is to show that an isomonodromy problem provides a unified framework for understanding those various features of integrability. The Seiberg-Witten solution itself can be interpreted as a WKB limit of this isomonodromy problem. The origin of underlying Whitham dynamics (adiabatic deformation of an isospectral problem) too can be similarly explained by a more refined asymptotic method (multiscale analysis). The case of N = 2 SU (s) supersymmetric Yang

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14

Ammosov, Dmitry, and Maria Vasilyeva. "Online Multiscale Finite Element Simulation of Thermo-Mechanical Model with Phase Change." Computation 11, no. 4 (2023): 71. http://dx.doi.org/10.3390/computation11040071.

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This paper presents a thermo-mechanical model with phase transition considering changes in the mechanical properties of the medium. The proposed thermo-mechanical model is described by a system of partial differential equations for temperature and displacements. In the model, soil deformations occur due to porosity growth caused by ice and water density differences. A finite-element approximation of this model on a fine grid is presented. The linearization from the previous time step is used to handle the nonlinearity of the problem. For reducing the size of the discrete problem, offline and o

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15

Pardoen, Benoît, Frédéric Collin, Pierre Bésuelle, et al. "Modelling the multiscale behaviour of claystone: deformation, rupture, and hydro-mechanical phenomena around underground galleries." E3S Web of Conferences 205 (2020): 10003. http://dx.doi.org/10.1051/e3sconf/202020510003.

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In the context of underground exploitation, the behaviour of rocks near galleries and tunnels conditions their stability. Underground drilling generates deformations, damage, fracturing, and significant modification of flow characteristics in the surrounding rock. However, the influence of small-scale characteristics and behaviour on the rock deformations and damage at engineering scale remains a complex issue. Consequently, the multiscale behaviour of a clay rock is modelled starting from the large scale of the excavation damaged zone around galleries and then enriching the approach by consid

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16

Mohanan, Vaisakh Vilavinalthundil, Ho Yi Lydia Mak, Nishan Gurung, and Qin Xu. "Multiscale Soft Surface Instabilities for Adhesion Enhancement." Materials 15, no. 3 (2022): 852. http://dx.doi.org/10.3390/ma15030852.

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Soft polymeric gels are susceptible to buckling-induced instabilities due to their great compliance to surface deformations. The instability patterns at soft interfaces have great potential in engineering functional materials with unique surface properties. In this work, we systematically investigated how swelling-induced instability patterns effectively improved the adhesive properties of soft polydimethylsiloxane (PDMS) gels. We directly imaged the formations of the surface instability features during the relaxation process of a swollen gel substrate. The features were found to greatly incre

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17

Zarei, Vahhab, Sijia Zhang, Beth A. Winkelstein, and Victor H. Barocas. "Tissue loading and microstructure regulate the deformation of embedded nerve fibres: predictions from single-scale and multiscale simulations." Journal of The Royal Society Interface 14, no. 135 (2017): 20170326. http://dx.doi.org/10.1098/rsif.2017.0326.

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Excessive deformation of nerve fibres (axons) in the spinal facet capsular ligaments (FCLs) can be a cause of pain. The axons are embedded in the fibrous extracellular matrix (ECM) of FCLs, so understanding how local fibre organization and micromechanics modulate their mechanical behaviour is essential. We constructed a computational discrete-fibre model of an axon embedded in a collagen fibre network attached to the axon by distinct fibre–axon connections. This model was used to relate the axonal deformation to the fibre alignment and collagen volume concentration of the surrounding network d

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18

Duque, Julia, Alessandra Bonfanti, Jonathan Fouchard, et al. "Rupture strength of living cell monolayers." Nature Materials 23, no. 11 (2024): 1563–74. http://dx.doi.org/10.1038/s41563-024-02027-3.

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AbstractTo fulfil their function, epithelial tissues need to sustain mechanical stresses and avoid rupture. Although rupture is usually undesired, it is central to some developmental processes, for example, blastocoel formation. Nonetheless, little is known about tissue rupture because it is a multiscale phenomenon that necessitates comprehension of the interplay between mechanical forces and biological processes at the molecular and cellular scales. Here we characterize rupture in epithelial monolayers using mechanical measurements, live imaging and computational modelling. We show that despi

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19

Matouš, Karel, and Philippe H. Geubelle. "Multiscale modelling of particle debonding in reinforced elastomers subjected to finite deformations." International Journal for Numerical Methods in Engineering 65, no. 2 (2005): 190–223. http://dx.doi.org/10.1002/nme.1446.

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Grün, Jeremias, Marco Gohs, and Frank Bauer. "Multiscale Structural Mechanics of Rotary Shaft Seals: Numerical Studies and Visual Experiments." Lubricants 11, no. 6 (2023): 234. http://dx.doi.org/10.3390/lubricants11060234.

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Although rotary shaft seals have been used successfully in many industrial applications for decades, their tribological behavior is still not completely understood. In-depth knowledge of the structural mechanics is essential for the design and optimization of such sealing systems. High complexity results from the multiscale interactions in the tribological system rotary shaft seal. Large macroscopic deformations occur due to the hyperelastic material behavior of elastomers coupled with microscopic tangential distortions of the sealing edge surface in the contact area. This paper includes both

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21

Arora, Hari, Ria Mitchell, Richard Johnston, et al. "Correlating Local Volumetric Tissue Strains with Global Lung Mechanics Measurements." Materials 14, no. 2 (2021): 439. http://dx.doi.org/10.3390/ma14020439.

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The mechanics of breathing is a fascinating and vital process. The lung has complexities and subtle heterogeneities in structure across length scales that influence mechanics and function. This study establishes an experimental pipeline for capturing alveolar deformations during a respiratory cycle using synchrotron radiation micro-computed tomography (SR-micro-CT). Rodent lungs were mechanically ventilated and imaged at various time points during the respiratory cycle. Pressure-Volume (P-V) characteristics were recorded to capture any changes in overall lung mechanical behaviour during the ex

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22

Glazoff, Michael V., Sergey N. Rashkeev, Yuri P. Pyt’ev, Jeong-Whan Yoon, and Simon Sheu. "Interplay between plastic deformations and optical properties of metal surfaces: A multiscale study." Applied Physics Letters 95, no. 8 (2009): 084106. http://dx.doi.org/10.1063/1.3213391.

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El Halabi, F., D. González, J. A. Sanz-Herrera, and M. Doblaré. "A PGD-based multiscale formulation for non-linear solid mechanics under small deformations." Computer Methods in Applied Mechanics and Engineering 305 (June 2016): 806–26. http://dx.doi.org/10.1016/j.cma.2016.03.039.

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Owen, David R., and Roberto Paroni. "Optimal Flux Densities for Linear Mappings and the Multiscale Geometry of Structured Deformations." Archive for Rational Mechanics and Analysis 218, no. 3 (2015): 1633–52. http://dx.doi.org/10.1007/s00205-015-0890-x.

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FREEDEN, W., and V. MICHEL. "WAVELET DEFORMATION ANALYSIS FOR SPHERICAL BODIES." International Journal of Wavelets, Multiresolution and Information Processing 03, no. 04 (2005): 523–58. http://dx.doi.org/10.1142/s0219691305001007.

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In this paper, we introduce a multiscale technique for the analysis of deformation phenomena of the Earth. Classically, the basis functions under use are globally defined and show polynomial character. In consequence, only a global analysis of deformations is possible such that, for example, the water load of an artificial reservoir is hardly to model in that way. Up till now, the alternative to realize a local analysis can only be established by assuming the investigated region to be flat. In what follows, we propose a local analysis based on tools (Navier scaling functions and wavelets) taki

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Matano, Fabio, Mauro Caccavale, Giuseppe Esposito, et al. "Integrated dataset of deformation measurements in fractured volcanic tuff and meteorological data (Coroglio coastal cliff, Naples, Italy)." Earth System Science Data 12, no. 1 (2020): 321–44. http://dx.doi.org/10.5194/essd-12-321-2020.

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Abstract. Along the coastline of the Phlegraean Fields volcanic district, near Naples (Italy), severe retreat processes affect a large part of the coastal cliffs, mainly made of fractured volcanic tuff and pyroclastic deposits. Progressive fracturing and deformation of rocks can lead to hazardous sudden slope failures on coastal cliffs. Among the triggering mechanisms, the most relevant are related to meteorological factors, such as precipitation and thermal expansion due to solar heating of rock surfaces. In this paper, we present a database of measurement time series taken over a period of ∼

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27

Kong, Ki-jeong. "Multiscale Simulation on the Electronic Structure Variation of the Carbon Nanotubes by Mechanical Deformations." Journal of the Korean Physical Society 55, no. 5(2) (2009): 2218–23. http://dx.doi.org/10.3938/jkps.55.2218.

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Bakhoum, Ezzat G., and Cristian Toma. "Dynamical Aspects of Macroscopic and Quantum Transitions due to Coherence Function and Time Series Events." Mathematical Problems in Engineering 2010 (2010): 1–13. http://dx.doi.org/10.1155/2010/428903.

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This study presents the application of dynamical equations able to generate alternating deformations with increasing amplitude and delayed pulses in a certain material medium. It is considered that an external force acts at certain time interval (similar to a time series) upon the material medium in the same area. Using a specific differential equation (considering nonzero initial values and using a function similar to the coherence function between the external force and the deformations inside the material), it results that modulated amplitude oscillations appear inside the material. If the

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Mäkipere, Krista, and Piroz Zamankhan. "Simulation of Fiber Suspensions—A Multiscale Approach." Journal of Fluids Engineering 129, no. 4 (2006): 446–56. http://dx.doi.org/10.1115/1.2567952.

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The present effort is the development of a multiscale modeling, simulation methodology for investigating complex phenomena arising from flowing fiber suspensions. The present approach is capable of coupling behaviors from the Kolmogorov turbulence scale through the full-scale system in which a fiber suspension is flowing. Here the key aspect is adaptive hierarchical modeling. Numerical results are presented for which focus is on fiber floc formation and destruction by hydrodynamic forces in turbulent flows. Specific consideration was given to dynamic simulations of viscoelastic fibers in which

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Yang, Yi, Yi Yang, Shubo Zhou, et al. "MST: Multiscale Flow-Based Student–Teacher Network for Unsupervised Anomaly Detection." Electronics 13, no. 16 (2024): 3224. http://dx.doi.org/10.3390/electronics13163224.

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Student–teacher networks have shown promise in unsupervised anomaly detection; however, issues such as semantic confusion and abnormal deformations still restrict the detection accuracy. To address these issues, we propose a novel student–teacher network named MST by integrating the multistage pixel-reserving bridge (MPRB) and the spatial compression autoencoder (SCA) to the MMR network. The MPRB enhances inter-level information interaction and local feature extraction, improving the anomaly localization and reducing the false detection area. The SCA bolsters global feature extraction, making

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Mordhorst, Mylena, Thomas Heidlauf, and Oliver Röhrle. "Predicting electromyographic signals under realistic conditions using a multiscale chemo–electro–mechanical finite element model." Interface Focus 5, no. 2 (2015): 20140076. http://dx.doi.org/10.1098/rsfs.2014.0076.

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This paper presents a novel multiscale finite element-based framework for modelling electromyographic (EMG) signals. The framework combines (i) a biophysical description of the excitation–contraction coupling at the half-sarcomere level, (ii) a model of the action potential (AP) propagation along muscle fibres, (iii) a continuum-mechanical formulation of force generation and deformation of the muscle, and (iv) a model for predicting the intramuscular and surface EMG. Owing to the biophysical description of the half-sarcomere, the model inherently accounts for physiological properties of skelet

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Cohen, Noy, Andreas Menzel, and Gal deBotton. "Towards a physics-based multiscale modelling of the electro-mechanical coupling in electro-active polymers." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, no. 2186 (2016): 20150462. http://dx.doi.org/10.1098/rspa.2015.0462.

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Owing to the increasing number of industrial applications of electro-active polymers (EAPs), there is a growing need for electromechanical models which accurately capture their behaviour. To this end, we compare the predicted behaviour of EAPs undergoing homogeneous deformations according to three electromechanical models. The first model is a phenomenological continuum-based model composed of the mechanical Gent model and a linear relationship between the electric field and the polarization. The electrical and the mechanical responses according to the second model are based on the physical st

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Zarei, Vahhab, Rohit Y. Dhume, Arin M. Ellingson, and Victor H. Barocas. "Multiscale modelling of the human lumbar facet capsular ligament: analysing spinal motion from the joint to the neurons." Journal of The Royal Society Interface 15, no. 148 (2018): 20180550. http://dx.doi.org/10.1098/rsif.2018.0550.

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Due to its high level of innervation, the lumbar facet capsular ligament (FCL) is suspected to play a role in low back pain (LBP). The nociceptors in the lumbar FCL may experience excessive deformation and generate pain signals. As such, understanding the mechanical behaviour of the FCL, as well as that of its underlying nerves, is critical if one hopes to understand its role in LBP. In this work, we constructed a multiscale structure-based finite-element (FE) model of a lumbar FCL on a spinal motion segment undergoing physiological motions of flexion, extension, ipsilateral and contralateral

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XIAO, SHAOPING, and WEIXUAN YANG. "A NANOSCALE MESHFREE PARTICLE METHOD WITH THE IMPLEMENTATION OF THE QUASICONTINUUM METHOD." International Journal of Computational Methods 02, no. 03 (2005): 293–313. http://dx.doi.org/10.1142/s0219876205000533.

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Since meshfree particle methods have advantages on simulating the problems involving extremely large deformations, fractures etc., they become attractive options to be used in the hierarchical multiscale modeling to approximate a large number of atoms. We propose a nanoscale meshfree particle method with the implementation of the quasicontinuum technique in this paper. The intrinsic properties of the material associated with each particle will be sought from the atomic level via the Cauchy-Born rule. The studies of a nano beam and a nano plate with a central crack show that such a hierarchical

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Li, Shaofan, and Wing Kam Liu. "Meshfree and particle methods and their applications." Applied Mechanics Reviews 55, no. 1 (2002): 1–34. http://dx.doi.org/10.1115/1.1431547.

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Recent developments of meshfree and particle methods and their applications in applied mechanics are surveyed. Three major methodologies have been reviewed. First, smoothed particle hydrodynamics (SPH) is discussed as a representative of a non-local kernel, strong form collocation approach. Second, mesh-free Galerkin methods, which have been an active research area in recent years, are reviewed. Third, some applications of molecular dynamics (MD) in applied mechanics are discussed. The emphases of this survey are placed on simulations of finite deformations, fracture, strain localization of so

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Yanikömer, Neslihan, Rahim Nabbi, and Klaus Fischer-Appelt. "Impact of Radiation-Induced Microstructures on the Integrity of Spent Nuclear Fuel (SNF) Elements in Long-Term Storage." Safety of Nuclear Waste Disposal 1 (November 10, 2021): 17–18. http://dx.doi.org/10.5194/sand-1-17-2021.

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Abstract. The current safety concept provides for a period in the range of 40 years for interim storage of spent fuel elements. Since the requirement for proof of safety for to up to 100 years arises, the integrity of the spent fuel elements in prolonged interim storage and long-term repositories is becoming a critical issue. In response to this safety matter, this study aims to assess the impact of radiation-induced microstructures on the mechanical properties of spent fuel elements, in order to provide reliable structural performance limits and safety margins. The physical processes involved

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Klahr, Bruno, José Luís Medeiros Thiesen, Otávio Teixeira Pinto, Thiago André Carniel, and Eduardo Alberto Fancello. "A variational RVE-based multiscale poromechanical formulation applied to soft biological tissues under large deformations." European Journal of Mechanics - A/Solids 99 (May 2023): 104937. http://dx.doi.org/10.1016/j.euromechsol.2023.104937.

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Du, Li, Tong, Li, and Liu. "Isothermal Drying Process and its Effect on Compressive Strength of Concrete in Multiscale." Applied Sciences 9, no. 19 (2019): 4015. http://dx.doi.org/10.3390/app9194015.

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Drying could change the microstructure of cement-based materials and inevitably affect their mechanical properties. The isothermal drying process of concrete at three scales and its effect on compressive behavior and microstructure were investigated. The deformations of cement paste, mortar, and concrete in the drying process all exhibit the characteristics of expansion first and then shrinkage. The porosity and average pore diameter increase after drying, which is mainly attributed to the increase of pores less than 100 nm diameter for paste and to the pores within 100~1000 nm for mortar. Dry

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Klinge, Sandra, and Klaus Hackl. "APPLICATION OF THE MULTISCALE FEM TO THE DETERMINATION OF MACROSCOPIC DEFORMATIONS CAUSED BY DISSOLUTION-PRECIPITATION CREEP." International Journal for Multiscale Computational Engineering 14, no. 2 (2016): 95–111. http://dx.doi.org/10.1615/intjmultcompeng.2016016021.

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Paran, S. M. R., G. Naderi, M. H. R. Ghoreishy, and C. Dubois. "Multiscale modeling of polymer systems comprising nanotube-like inclusions by considering interfacial debonding under plastic deformations." Composite Structures 194 (June 2018): 302–15. http://dx.doi.org/10.1016/j.compstruct.2018.03.059.

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Ma, Juan, Shahab Sahraee, Peter Wriggers, and Laura De Lorenzis. "Stochastic multiscale homogenization analysis of heterogeneous materials under finite deformations with full uncertainty in the microstructure." Computational Mechanics 55, no. 5 (2015): 819–35. http://dx.doi.org/10.1007/s00466-015-1136-3.

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Ye, J. J., J. Xi, Y. Hong, et al. "A Multiscale Approach to Studying the High Strain-Rate Deformations of Glass-Fiber-Reinforced Polymer-Matrix Composites." Mechanics of Composite Materials 55, no. 5 (2019): 607–16. http://dx.doi.org/10.1007/s11029-019-09837-6.

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Fablet, Ronan, Alexis Chaigneau, and Sophie Bertrand. "Multiscale Analysis of Geometric Planar Deformations: Application to Wild Animal Electronic Tracking and Satellite Ocean Observation Data." IEEE Transactions on Geoscience and Remote Sensing 52, no. 6 (2014): 3627–36. http://dx.doi.org/10.1109/tgrs.2013.2274157.

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Huang, Xingyu, Jian Zhang, Kun Tang, Xinyu Cheng, Chen Ye, and Lihui Wang. "Multilevel network for large deformation image registration based on feature consistency and flow normalization." Medical Physics 51, no. 12 (2024): 8962–78. https://doi.org/10.1002/mp.17390.

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AbstractBackgroundDeformable image registration is an essential technique of medical image analysis, which plays important roles in several clinical applications. Existing deep learning‐based registration methods have already achieved promising performance for the registrations with small deformations, while it is still challenging to deal with the large deformation registration due to the limits of the image intensity‐similarity‐based objective function.PurposeTo achieve the image registration with large‐scale deformations, we proposed a multilevel network architecture FCNet to gradually refi

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Golovina, N. Ya. "ALLOY AGING AS A MULTISCALE EFFECT WITHIN THE NANOCOMPOSITE THEORY." PNRPU Mechanics Bulletin, no. 6 (December 15, 2023): 50–56. http://dx.doi.org/10.15593/perm.mech/2023.6.05.

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Within the theory of finely dispersed nanocomposites, the dependence of the effective Young's modulus on the absolute size of the reinforcing particles is obtained. Two cases of controlling/changing the effective Young's modulus at a constant relative volume fraction of reinforcing particles are considered. The first is the disintegration of reinforcing particles into smaller ones, followed by diffusion throughout the volume of the matrix. In this case, the effective modulus of the nanocomposite increases. The second one is the agglomeration of reinforcing particles into larger ones. In this c

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Gupta, Raj K., X. Gary Tan, Mahadevabharath R. Somayaji, and Andrzej J. Przekwas. "Multiscale Modelling of Blast-Induced TBI Mechanobiology - From Body to Neuron to Molecule." Defence Life Science Journal 2, no. 1 (2017): 3. http://dx.doi.org/10.14429/dlsj.2.10369.

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<p>Blast induced Traumatic Brain Injury (bTBI) has become a signature wound of the recent military operations and is becoming a significant factor of recent civilian blast explosion events. In spite of significant clinical and preclinical research on TBI, current understanding of injury mechanisms is limited and little is known about the short and long-term outcomes. Mathematical models of bTBI may provide capabilities to study brain injury mechanisms, perhaps accelerating the development of neuroprotective strategies and aiding in the development of improved personal protective equipmen

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Sagindykov, T. B., A. R. Brazhe, and D. V. Sorokin. "PREPROCESSING AND REGISTRATION OF MINISCOPE-BASED CALCIUM IMAGING OF THE RODENT BRAIN." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W12 (May 9, 2019): 185–88. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w12-185-2019.

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<p><strong>Abstract.</strong> Microscopic imaging is central to the brain and cognition studies in animals and often requires advanced image processing. In vivo recordings on awake behaving animals require stabilization of the images as the tissue in the images undergoes non-rigid deformations due to animal movement, pulse beat and breathing of the animal. Here we propose an approach to compensation for the tissue motion in calcium imaging data acquired with miniaturized wearable microscopes (miniscopes) from live rodent brains. Our approach includes preprocessing of the imag

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Binder, Eva, Wit Derkowski, and Thomas K. Bader. "Development of Creep Deformations during Service Life: A Comparison of CLT and TCC Floor Constructions." Buildings 12, no. 2 (2022): 239. http://dx.doi.org/10.3390/buildings12020239.

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Cross-laminated timber (CLT) slabs in residential buildings need additional weight, e.g., in the form of screeds or gravel layers, to fulfill the criterion for the highest impact-sound class. The additional mass is, however, not exploited for the load bearing behavior, but adds additional weight and leads to an increased height of the floor construction. In this study, such a CLT floor construction with a construction height of 380 mm is compared with a composite slab consisting of a CLT plate with a concrete layer on top with a floor construction height of 330 mm. The timber concrete composit

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Ogata, Shuji, and Takahiro Igarashi. "Concurrent Coupling of Electronic-Density-Functional, Molecular Dynamics, and Coarse-Grained Particles Schemes for Multiscale Simulation of Nanostructured Materials." Materials Science Forum 502 (December 2005): 33–38. http://dx.doi.org/10.4028/www.scientific.net/msf.502.33.

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Feature sizes of useful electronic devices are becoming smaller and reaching nanometer ranges. There is increasing demand to perform dynamic simulations of such nano-devices with realistic sizes. To date, various kinds of simulation methods have been used for materials and devices including the density-functional theory (DFT) and the molecular dynamics (MD) for atomistic mechanics and the finite element method for continuum mechanics. We review recent progresses in our multiscale, hybrid simulation schemes that combine those methods. The coarse-grained particles (CG) method originally proposed

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Ayoub, Salma, Giovanni Ferrari, Robert C. Gorman, Joseph H. Gorman, Frederick J. Schoen, and Michael S. Sacks. "Heart Valve Biomechanics and Underlying Mechanobiology." Comprehensive Physiology 6, no. 4 (2016): 1743–80. https://doi.org/10.1002/j.2040-4603.2016.tb00724.x.

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ABSTRACTHeart valves control unidirectional blood flow within the heart during the cardiac cycle. They have a remarkable ability to withstand the demanding mechanical environment of the heart, achieving lifetime durability by processes involving the ongoing remodeling of the extracellular matrix. The focus of this review is on heart valve functional physiology, with insights into the link between disease‐induced alterations in valve geometry, tissue stress, and the subsequent cell mechanobiological responses and tissue remodeling. We begin with an overview of the fundamentals of heart valve ph

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