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Nomograms of solid linear viscoelastic materials in time and frequency domains
Published 2025-01-01Subjects: Get full text
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Methodology for Determining the Compliance Matrix and Analyzing the Skew Anisotropic Plate with an Arbitrarily Shaped Hole
Published 2022-01-01“…On this basis, the elastic compliance matrix for the skew anisotropic material can be obtained in combination with the engineering constants (Young’s modulus, Poisson’s ratio, and shear modulus). Subsequently, the complex variable method is utilized to derive the analytical solutions for stress along the hole boundary. …”
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Characterization of a reversible-assembly mechanical metamaterial with an adjustble mechanical property
Published 2025-01-01“…The results show that the three basic voxels have great rigidity difference, and Poisson’s ratio covers the range from negative to positive.Therefore, different combination sequences of these three basic voxels can produce macro structures with different mechanical property distributions, which proves the rationality of using these three basic voxels as the basic voxels of the reversible-assembly structure.In addition, the mathematical relationship between geometric parameters and mechanical properties can provide guidance for the engineering application of such mechanical metamaterials.…”
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Study on the Different Effects of Power and Trailer Wheelsets on Wheel Polygonal Wear
Published 2020-01-01“…In addition, the development tendency of wheel polygonal wear can be reduced by increasing the Young’s modulus of the brake pad, but Poisson’s ratio has little effect on the development tendency.…”
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Mathematical Modeling and Analysis of Drill String Longitudinal Vibration with Lateral Inertia Effect
Published 2016-01-01“…The researches show that the smaller the length of the drill string, the greater the cross-sectional area of the drill string, the greater the damping coefficient of bottom hole on the bottom of the drill string, and the more evident the effect on the dynamic stiffness of the drill string with lateral inertia effect. The Poisson ratio of the drill string only has some effects on it taking account of the lateral inertia effect, and the influence is relatively small compared with the former three conditions.…”
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Electromagnetic Low-Frequency Dipolar Excitation of Two Metal Spheres in a Conductive Medium
Published 2012-01-01“…A simulation is developed in order to investigate the effect of the radii ratio, the relative position of the spheres, and the position of the dipole on the real and imaginary parts of the calculated scattered magnetic field.…”
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Establishment and Application of Stochastic Mesoscopic Concrete Model
Published 2022-01-01“…In addition, the results of the two cases show that the random aggregate geometry and aggregate content have a great impact on the physical and mechanical properties of concrete, and the randomness of the spatial distribution of aggregates makes the chloride ion transport path and the elastic modulus and Poisson’s ratio of concrete be random. The results of this paper can provide an important research foundation for the study of mesoscopic physical and mechanical properties, gradation theory, and durability of concrete.…”
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The Impact of Pore Structure on Kerogen Geomechanics
Published 2021-01-01“…Mechanical properties such as Young’s modulus, bulk modulus, and Poisson ratio were calculated. The results revealed strong correlations among kerogen’s mechanical properties and petrophysics. …”
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Enhancing hydraulic fracturing efficiency through machine learning
Published 2025-01-01“…These models were specifically employed to predict and assess fracture width based on a variety of geological and operational parameters: geometric factors (γ), Shear Modulus (G), Poisson’s ratio (ν), viscosity of the fracturing fluid (µ in centipoise), crack height (h), fluid efficiency (η), injection time (t), and crack length (x). …”
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Understanding excess mortality during COVID in Belgium: the influence of pre-existing health status and social factors
Published 2025-01-01“…Directly Standardised Mortality Rates (DSMRs) were calculated to investigate absolute mortality inequalities. Mortality Rate Ratios (MRRs) were computed using Poisson regression analyses to investigate relative mortality inequalities. …”
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