Background: Consumption of hot substances may harm the surrounding bone around a dental implant. High temperatures at the bone-implant interface (BII) interferes with local cellular activities involved in the osteointegration.Objectives: The present study was aimed at calculating the temperature distribution through the BII and the jaw bone under application of a transient cyclic Thermal load.Methods: In this numerical simulation, finite element method was employed in a commercialized dental implant model drawn by computer-aided design tools based on CT data to find the temperature in superficial and deep bone regions near the BII. The heat load was applied cyclically during the intake time.Results: Results showed that the highest temperature was occurred at the top regions of the interface by magnitude of 48 C. Removal of the Thermal loads also was followed by rapid decrease in the bone temperature.Conclusions: Routine beverages of a hot liquid can increase the temperature of the bone beyond the biological thresholds of the bone cells vitality or remodeling functionality, specifically in the delayed loading types of implantation.

In this study, the development of a generative algorithm related to the lattice conical shell (Isogrid pattern) and the modeling of the stiffened shell under mechanical and Thermal loads are discussed. An algorithm has been developed for the lattice conical shell (MATLAB software), which generates the pattern of stiffeners on the conical shell. Modeling of the lattice conical shell is done in SolidWorks software. The structure of stiffened shell is analyzed under loading using the Finite Element Method (FEM) in the ANSYS Workbench. The modeling of the lattice conical shell is investigated under mechanical (axial and bending load and internal pressure) and Thermal loads. It is concluded that the stiffeners can resist buckling and mechanical failure under mechanical and Thermal loading conditions, while the mass is significantly reduced. This shell can be used in various industries due to its lightweight and high resistance. Whereas the safety factor of the final model is about 2 and the model is acceptable for desirable internal pressure (0.6 MPa), the total system mass is about 41 kg.

This paper presents Thermal buckling analysis of rectangular functionally graded plates (FG plates) with an eccentrically located elliptic cutout. The plate governing equations derived by the first order shear deformation theory (FSDT) and finite element formulation is developed to analyze the plate behavior subjected to a uniform temperature rise across plate thickness. It is assumed that the non-homogenous material properties vary through the plate thickness according to a power function. The developed finite element (FE) code with an extended mesh pattern is written in MATLAB software. The effects of aspect ratio of the plate, ellipse radii ratio, position and orientation of the cutout, boundary conditions (BCs) and volume fraction exponent are investigated in details. The results of present code are compared with those available in the literature and some useful design-orientated conclusions are achieved.

In this paper, the general solution of steady-state two-dimensional non-axisymmetric mechanical and Thermal stresses and mechanical displacements of a hollow thick cylinder made of fluid saturated functionally graded porous material (FGPM) is presented. The general form of Thermal and mechanical boundary conditions is considered on the inside and outside surfaces. A direct method is used to solve the heat conduction equation and the non-homogenous system of partial differential Navier equations, using the Complex Fourier Series and the power law functions method. The material properties, except of Poisson's ratio, are assumed to depend on the radial variabler and they are expressed as power law functions.

In this paper, the first-order shear deformation theory is used to derive theoretical formulationsillustrating the nonlinear dynamic response of functionally graded porous plates under Thermal and mechanicalloadings supported by Pasternak’ s model of the elastic foundation. Two types of porosity including evenlydistributed porosities (Porosity-I) and unevenly distributed porosities (Porosity-II) are assumed as effectiveproperties of FGM plates such as Young’ s modulus, the coefficient of Thermal expansion, and density. The straindisplacementformulations using Von Karman geometrical nonlinearity and general Hooke’ s law are used to obtainconstitutive relations. Airy stress functions with full motion equations which is employed to shorten the number ofgoverning equations along with the boundary and initial conditions lead to a system of differential equations of thenonlinear dynamic response of porous FGM plates. Considering linear parts of these equations, natural frequenciesof porous FGM plates are determined. By employing Runge-Kutta method, the numerical results illustrate theinfluence of geometrical configurations, volume faction index, porosity, elastic foundations, and mechanical as wellas Thermal loads on the nonlinear dynamic response of the plates. Good agreements are obtained in comparisonwith other results in the literature.