Compressibility of biological systems: the viscoelastic Poisson’s ratio by Ivana Pajic-Lijakovic, Milan Milivojevic, Peter V.E. McClintock

“…Externally or internally applied uni-axial or biaxial changes induce longitudinal strains that can be of either sign. The complex interrelationship between applied strain and induced strain is quantified by a time-space change of the Poisson’s ratio, which is itself determined by cell–cell and cell–matrix interactions. …”
Get full text

Nomograms of solid linear viscoelastic materials in time and frequency domains by de Sousa, Tiago Lima, da Silva, Jéderson, Pereira, Jucélio Tomás, Pires, Carolina Mocelin Gomes

Subjects: Get full text

STUDY ON IN-PLANE EQUIVALENT ELASTIC PARAMETERS OF COMPLEX POLYGONAL HONEYCOMB CORE by GUO YuChao, WANG LiKai, WU CunLi, DUAN ShiHui

“…The results show that: the angle θ andφ of walls has a great influence on equivalent elastic modulus and Poisson’s ratio,and the changes of angleθ will lead to positive and negative changes of Poisson’s ratio; the equivalent elastic modulus decreases with the increasing of the length of wall.…”
Get full text

Mechanical properties of the most common European woods: a literature review by Beatrice Bartolucci, Andrea De Rosa, Chiara Bertolin, Filippo Berto, Francesco Penta, Anna Maria Siani

“…A literature research about the mechanical properties of density, fracture toughness, modulus of elasticity, and Poisson�s ratio has been done to have a broader view on the subject. …”
Get full text

Mechanical properties of the most common European woods: a literature review by Beatrice Bartolucci, Andrea De Rosa, Chiara Bertolin, Filippo Berto, Francesco Penta, Anna Maria Siani

“…A literature research about the mechanical properties of density, fracture toughness, modulus of elasticity, and Poisson’s ratio has been done to have a broader view on the subject. …”
Get full text

Methodology for Determining the Compliance Matrix and Analyzing the Skew Anisotropic Plate with an Arbitrarily Shaped Hole by Xiaoli Zhang, Aizhong Lu, Kezhi Song, Guangming Wu, Lei Wang

“…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. …”
Get full text

Characterization of a reversible-assembly mechanical metamaterial with an adjustble mechanical property by WU Qi, YANG Yu, LU Yifei, BAO Panpan, WANG Zhigang

“…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.…”
Get full text

Study on the Different Effects of Power and Trailer Wheelsets on Wheel Polygonal Wear by X. N. Zhao, G. X. Chen, Z. Y. Huang, C. G. Xia

“…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.…”
Get full text

Mathematical Modeling and Analysis of Drill String Longitudinal Vibration with Lateral Inertia Effect by Jialin Tian, Chunming Wu, Lin Yang, Zhi Yang, Gang Liu, Changfu Yuan

“…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.…”
Get full text

Electromagnetic Low-Frequency Dipolar Excitation of Two Metal Spheres in a Conductive Medium by Panayiotis Vafeas, Polycarpos K. Papadopoulos, Dominique Lesselier

“…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.…”
Get full text

Establishment and Application of Stochastic Mesoscopic Concrete Model by Shufang Wang, Xiaoliang Zhai, Yangyang Gao, Jialu Li, Wei Hu

“…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.…”
Get full text

The Impact of Pore Structure on Kerogen Geomechanics by Saad Alafnan

“…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. …”
Get full text

Factors associated with hypercholesterolemia in older adults: A cross‐sectional investigation by Maria Clara Alves deOliveira, Júlia Perfeito Andrade, Ana Carolina Souza Porto, Gizelly Maria Torres Martins, Nurielly Monteiro Campos, Paulo daFonseca Valença Neto, Claudio Bispo De Almeida, Saulo Sacramento Meira, Beatriz Cardoso Roriz, Débora Jesus daSilva, Victor Giovannino Accetta, Cezar Augusto Casotti, Lucas dosSantos

Get full text

Enhancing hydraulic fracturing efficiency through machine learning by Ali Karami, Ali Akbari, Yousef Kazemzadeh, Hamed Nikravesh

“…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). …”
Get full text

Fracturing simulation with different perforation positions at deep coal seam and roof/ floor rock — case study at the No.8 deep coal seam of a gas field in the Ordos basin by Dong XIONG, Jiayuan HE, Xinfang MA, Zhaoliang QU, Tiankui GUO, Shiyu MA

“…According to the research findings, the following results are obtained: The coal rock has a lower elastic modulus and a higher Poisson’s ratio than the limestone and mudstone rocks, and the pores and fractures are developed. …”
Get full text

Understanding excess mortality during COVID in Belgium: the influence of pre-existing health status and social factors by Laura Van den Borre, Brecht Devleesschauwer, Sylvie Gadeyne, Katrien Vanthomme, Didier Willaert

“…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. …”
Get full text

Temporal trends in aerobic physical activity guideline adherence among nationally representative samples of U.S adults between 2011 and 2019: Cross-sectional findings from a sample... by David Abernethy, Jason Bennie, Toby Pavey

“…Population-weighted prevalence was calculated for meeting MVPA guidelines (150+ mins/wk). Adjusted prevalence ratios for reporting sufficient MVPA across sociodemographic, behavioral and health variables were calculated by multivariate Poisson regression.…”
Get full text