نتایج جستجو برای: gradient foundation
تعداد نتایج: 217027 فیلتر نتایج به سال:
present paper is devoted to stress and deformation analyses of heated variable thickness functionally graded (fg) circular plate with clamped supported, embedded on a gradient elastic foundation and subjected to non-uniform transverse load. the plate is coupled by an elastic medium which is simulated as a winkler- pasternak foundation with gradient coefficients in the radial and circumferential...
In this study, the effects of diameter and location of drain pipe in uplift force and exit hydraulic gradient in the foundation of gravity dams are investigated. For this purpose, a numerical model of gravity dam foundation is simulated using finite elements method. The results indicate that drain pipe under the gravity dam reduces the uplift force and exit hydraulic gradient. Location of the d...
Present paper is devoted to stress and deformation analyses of heated variable thickness functionally graded (FG) circular plate with clamped supported, embedded on a gradient elastic foundation and subjected to non-uniform transverse load. The plate is coupled by an elastic medium which is simulated as a Winkler- Pasternak foundation with gradient coefficients in the radial and circumferential...
Design of earth dams and their problems are important during construction and after it,because of their potential hazards and failure for downstream population. The dam foundation seepage control the the importance from the perspective of a major engineering project and explain the economic performance of each project is allocated. among activities that can be used to prevent piping phenomena a...
Abstract Internal erosion is susceptible to occur in conditions where there are cracks or pre-formed cavities at the interface between dam foundation and embankment. The initiation of internal related critical gradient ( I c ) hydraulic xy a certain position. addition repair materials improvement will change total head, especially on foundation, so value also simultaneously from upstream downst...
Various models have been put forth to explain the modus operandi of the prefrontal cortex (PFC). One such model postulates an hierarchical anterior-posterior gradient within the PFC[1]. The structural architecture of the macaque PFC seems to support such a model. The hierarchical model is characterized by the principles of asymmetry, i.e. more anterior regions (region 10) have more efferents to...
Purpose The purpose of this study is to find the optimum design Reinforced Concrete (RC) pile foundation enable efficient use structural concrete with greater consequences for global environment and economy. Design/methodology/approach A non-linear optimisation technique based on Generalised Reduced Gradient (GRG) algorithm was implemented minimum cost RC in frictional soil. This achieved by ob...
Buckling analysis of a functionally graded (FG) nanobeam resting on two-parameter elastic foundation is presented based on third-order shear deformation beam theory (TOSDBT). The in-plane displacement of TOSDBT has parabolic variation through the beam thickness. Also, TOSDBT accounts for shear deformation effect and verifies stress-free boundary conditions on upper and lower faces of FG nanobea...
Buckling analysis of a functionally graded (FG) nanobeam resting on two-parameter elastic foundation is presented based on third-order shear deformation beam theory (TOSDBT). The in-plane displacement of TOSDBT has parabolic variation through the beam thickness. Also, TOSDBT accounts for shear deformation effect and verifies stress-free boundary conditions on upper and lower faces of FG nanobea...
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