Cross-anisotropy

Author: lqjw

August undefined, 2024

WebMar 15, 2024 · Before and after unloading, the cross section of the specimen was scanned by X-ray tomography, and the displacement of the tracking points within the cross section was quantified. François et al. [ 20 ] established a hydromechanical constitutive model that can account for strain hardening/softening and elastic and plastic anisotropy to ... WebOct 31, 2024 · By assuming cross-anisotropy of the soils, the P-wave and S-wave velocities were utilized to develop an equation for calculating the coefficient of lateral earth pressure at-rest (K₀) based on ...

Modulus of elasticity, density and Poisson

WebDec 12, 2024 · This paper proposes a simple and novel anisotropic fabric tensor to extend isotropic failure criteria to account for anisotropy in a general way. Both the cross … WebNov 11, 2015 · As a first step, the CTC and the CTE of AC at different temperatures ranging between − 20 and 55°C were measured using field samples to examine the temperature effect. Then, the difference in the CTC and the CTE values in the vertical and horizontal directions (cross anisotropy) were evaluated using field samples. hope physical therapy myrtle beach sc

A General Method to Incorporate Three-Dimensional Cross …

WebBased on the cross-anisotropic constitutive model, some researchers have developed solutions to analyse the effect of anisotropy on tunnelling works, such as deeply circular tunnels (Hefny and Lo ... WebJan 1, 2010 · Using two thin-pavement structures of different HMA layer thicknesses, 76 and 127 mm, the study analyzed the effects of cross-anisotropic stress-dependent aggregate base modulus and dynamic analysis on pavement responses, including surface deflection, tensile strain at the bottom of the HMA layer, deviator stress in the base layer, and ... hope physical therapy myrtle beach

Modeling Cross Anisotropy in Granular Materials

Subsurface settlements of shield tunneling predicted by 2D and …

WebJun 1, 2016 · It is also observed that cross-anisotropy variation in unbound layers has a very small effect on tensile strain for nonlinear and linear elastic unbound layers. … WebMay 14, 2024 · Unbound granular base (UGB) has a cross-anisotropic and nonlinear (stress-dependent) modulus with a plastic behavior. Existing UGB models address nonlinear cross-anisotropy and plasticity separately. It is unknown how the two characteristics are coupled into a finite element model (FEM) and how this will affect the pavement responses. hope physical therapy league cityWebThe initial anisotropy of natural clays can be characterized by the elastic shear moduli measured by wave propagation techniques both in situ and in the laboratory. This paper summarizes results of studies of the initial anisotropy of fresh water glacial clays from two sites in the Chicago area. long sleeve gymnastics leotard girl

"Webanisotropy, in physics, the quality of exhibiting properties with different values when measured along axes in different directions. Anisotropy is most easily observed in … " - Cross-anisotropy

Cross-anisotropy

Strength criterion for cross-anisotropic sand under …

WebSep 2, 2016 · By adopting an elliptical function to represent the shape of the failure line in the deviatoric plane, the influences of the stress state and the cross-anisotropy on the … WebPavement stress-strain responses considering cross-anisotropy in base and subbase, were modelled using finite element modeling (FEM) technique [16] [17]. Anisotropic properties of unbound granular ...

Did you know?

WebJan 11, 2024 · The cross-anisotropic nature of soil strength has been studied and documented for decades, including the increased propensity for cross-anisotropy in layered materials. However, current engineering practice for tailings storage facilities (TSFs) does not appear to generally include cross-anisotropy considerations in the … WebJan 1, 2001 · Cross-anisotropy, as a special type of anisotropy, is commonly employed to characterize the direction-dependent behavior of granular road materials because of compaction and the applied wheel ...

WebApr 1, 2014 · Very small strain stiffness anisotropy of sedimentary clays is investigated. First, a general formulation of transversely isotropic elastic model is summarised, followed by a description of its complete parameter identification using transversal and longitudinal wave velocity measurements. Then, an extensive experimental database from the … WebMay 5, 2010 · Natural soil deposits commonly exhibit cross-anisotropy about vertical axis due to their depositional environment. This paper will present a study on the vertical stress distribution in a cross ...

WebThis study measures the cross-anisotropy of gyratory, kneading and field-compacted hot-mix asphalt samples of two sizes. One set of cube samples were subjected to compression through the top face ... WebSep 19, 2024 · Various approaches are reviewed for determining elastic anisotropy and its coupling to crystallographic texture, with special reference to ultrasonic measurements. Two new methods are described for measuring the anisotropy of P-wave velocity using laser-ultrasonics. Making measurements across the diameter of a cylindrical specimen as it is …

WebHigh- resolution images of SEM cross-sections, using the conductive polymer-metal coating technique for high contrast cross sections,35 are used to quantify and qualify the etch results. Overall we see a trend towards high anisotropy with low temperature.

WebCross-anisotropic (also transverse-isotropic) materials exhibit rotational symmetry in mechanical response about the cross-anisotropy axis \(\vec{a}\): the material behaves isotropically perpendicular to \(\vec{a}\). … long sleeve gym clothesWebresolution cross-sectional STM imaging of the InAs/Ga12xInxSb superlattices allows atomic-scale interface roughness and asymmetry to be proﬁled directly, and is used to investigate directly and quantitatively the nature and de-gree of lateral anisotropy and growth-sequence dependence in interface structure. Features in interface structure ... long sleeve gymnastics leotards for toddlersWebJan 1, 2024 · The effects of the cross-anisotropy of different materials of the asphalt surface layer and the depth-temperature relationship on pavement responses and damage are investigated. A three-dimensional … Expand. 4. Save. Alert. Impact of cross-anisotropy on embedded sensor stress–strain and pavement damage. hope physiotherapieWebThe volume change behavior of cross-anisotropic sand is studied using results of a series of cubical triaxial tests. The relationships between the volumetric response, failure, and shear localization are addressed. Rates of dilation under various three-... long sleeve half button shirt menWebApr 18, 2024 · Through a comparison between isotropic and cross-anisotropic analysis of pavements, this study shows that isotropic analysis underestimates and some case … long sleeve gym topWebJan 6, 1983 · Transverse isotropy, also called cross-anisotropy, is when there is an axis of rotational material symmetry in the material behaviour (eg. Barden, 1963;Gibson, 1974;Atkinson, 1975; Graham and ... long sleeve gymnastics leotards for kidsWebApr 3, 2024 · The anisotropy of the permeation behavior in CAPC porous materials was evaluated using the aspect ratio of the dye solution permeation of the fiber-spread direction via the fabric-lamination direction. Cross-sectional images were obtained using X-ray computed tomography. The results and interpretations of the experiments can be … hope physiotherapy