نتایج جستجو برای: functionally graded nano composite
تعداد نتایج: 243655 فیلتر نتایج به سال:
Dry sliding performance of Cu-11Ni-4Si/10wt.%Al2O3 graded composite was investigated statistically and experimentally using pin-on-disc wear tester. Microstructural analysis revealed maximum gradient concentration ceramics towards the inner radial wall developed composite. The based on Taguchi’s L27 orthogonal array Regression models, at tribo-parameters (load-15, 25, 35 N, slide velocity-1.5, ...
In this study, the feasibility of using Lamb waves in functionally graded (FG) nano copper layered wafers nondestructive evaluation is evaluated. The elastic parameters and mass densities these vary with thickness due to variation grain size. power series technique used solve governing equations variable coefficients. To analyze multilayered structures, which material are continuous but underiv...
Background. In vitro studies have revealed a direct association between resin content and cytotoxicity of composite resins; however, implantation studies in this regard are sparse. This study investigates the relationship between filler content of composite resins and biocompatibility. Methods. This research employed twelve 180‒200-gr male Wistar rats, 1 nano-hybrid (Prime-Dent Inc.) and 1 micr...
ÐA functionally graded composite is prepared and the spatial gradation of Young's modulus in the functionally graded material (FGM) is measured. Elastic modulus gradients occur over length scales suitable for experimental mechanics investigations using optical interferometry. Crack tip ®elds are mapped in the FGM under quasi-static loading conditions with cracks oriented perpendicular to the di...
In the present article, buckling analysis of functionally graded annular thin and moderately thick plates under mechanical and thermal loads is investigated. The equilibrium and stability equations of the plate are obtained based on both classical and first order shear deformation plate theories. By using an analytical method, the coupled stability equations are converted to independent equatio...
In this paper, buckling behavior of moderately thick functionally graded rectangular plates resting on elastic foundation subjected to linearly varying in-plane loading is investigated. The neutral surface position for a functionally graded plate which its material properties vary in the thickness direction is determined. Based on the first-order shear deformation plate theory and the neutral s...
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