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Analytical Elasticity Solution for Accurate Prediction of Stresses in a Rectangular Plate Bending Analysis Using Exact 3-D Theory | ||
| Journal of Computational Applied Mechanics | ||
| دوره 54، شماره 2، شهریور 2023، صفحه 167-185 اصل مقاله (818.65 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/jcamech.2022.351892.781 | ||
| نویسندگان | ||
| Festus Chukwudi Onyeka1؛ Thompson Edozie Okeke2؛ Chidobere David Nwa-David3؛ Benjamin Okwudili Mama* 2 | ||
| 1Department of Civil Engineering, Edo State University Uzairue, Edo State, 312102, Nigeria. | ||
| 2Department of Civil Engineering, University of Nigeria, Nsukka, Enugu State, 410101, Nigeria. | ||
| 3Department of Civil Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, 440109, Nigeria. | ||
| چکیده | ||
| The bending attributes of a uniformly-loaded thick plate was modelled with three-dimensional (3-D) elasticity plate theory using exact polynomial displacement function. Plates with free support at its third edge and simply supported at other edges (SSFS), were covered in this study. The effect of shear deformation along with the transverse normal strain stress was considered in this model obviating the coefficients of shear correction. The total potential energy expression was formulated from 3-D kinematic and constitutive relations. The slope and deflection relationship was obtained from the equilibrium equation developed from the energy functional transformation. The solution of the equilibrium equation produced an exact polynomial deflection function while the coefficient of deflection of the plate was formed from the governing equation employing a direct variation approach. The formular for computing the displacement-stress components of the plate was established from these solutions in order to evaluate the bending properties of the plate. The solutions realized herein certifies that the 3D model is exact and consistent compared to refined plate theories applied by previous authors in the available literature. The total average percentage variation of the center deflection values obtained by Onyeka and Okeke, (2020) and Gwarah (2019), is 3.28%. This showed that at 97% confidence level, 3D model is most suitable and safe for analyzing the bending characteristics of thick plates unlike the 2-D RPTs. | ||
| کلیدواژهها | ||
| Exact 3-D theory؛ Polynomial shape function؛ SSFS thick plate؛ stress prediction؛ Analytical elasticity solution | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 257 تعداد دریافت فایل اصل مقاله: 483 |
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