A Novel Method for Numerical Analysis of 3D Nonlinear Thermo-Mechanical Bending of Annular and Circular Plates with Asymmetric Boundary Conditions Using SAPM

Journal of Solid Mechanics

مقاله 2، دوره 11، شماره 3، آذر 2019، صفحه 498-512   

نوع مقاله: Research Paper

شناسه دیجیتال (DOI): 10.22034/jsm.2019.666765

نویسندگان

A. R Golkarian¹؛ M Jabbarzadeh^{* 2}؛ Sh Dastjerdi³

¹Department of Mechanical Engineering, Science & Research Branch, Islamic Azad University, Tehran, Iran

²Department of Mechanical Engineering, Mashhad Branch, Islamic Azad University, Mashhad, Iran

³Department of Mechanical Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran

چکیده

This study is the first report of numerical solution of nonlinear bending analysis for annular and circular plates based on 3D elasticity theory with asymmetric boundary conditions using semi-analytical polynomial method (SAPM). Orthotropic annular and circular plates are subjected to transverse loading and 3D bending analysis in the presence of symmetric and asymmetric boundary conditions is studied. For asymmetry cases, the plate boundaries are divided to two or three parts and various boundary conditions such as clamped, simply-supported and free edges are defined for each part. The asymmetry in one and two directions is studied. The influence of elastic foundations, mechanical and thermo-mechanical loadings are examined. Regarding this fact that no study has been done in the case of asymmetric boundary conditions, the obtained results are compared with FEM results by ABAQUS. The results show good agreement with the literatures and FEM results, which it shows that the presented method can use to analyze the 3D bending of plates under asymmetric conditions. Also, it is observed that 3D elasticity estimates some higher deflections than other theories. But, the obtained results by 3D elasticity theory and those obtained by FEM analysis in the case of asymmetric conditions are so close.

کلیدواژه‌ها

3D elasticity؛ SAPM؛ Annular plates؛ Nonlinear bending؛ Asymmetry

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