Study of finite element plate analysis

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Study of finite element plate analysis

 

Author: Hu, Huihui
Title: Study of finite element plate analysis
Degree: M.Sc.
Year: 2014
Subject: Plates (Engineering)
Hong Kong Polytechnic University -- Dissertations
Department: Faculty of Construction and Environment
Pages: 54 leaves : illustrations ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b2759222
URI: http://theses.lib.polyu.edu.hk/handle/200/7610
Abstract: Reinforced concrete structures like pile caps and transfer plates are the most important components for spreading the loading of whole structure, which can conveniently be analyzed and designed as plate bending structures. Based on the experience of many engineers and the previous studies, it is found that there are various limitations to the commonly used elements and programs for plate problems which require engineers' attention. The performance, including accuracy and efficiency, of the plate bending finite element programs, SAFE and PLATE are studied and investigated in this paper. Several standard bending models are presented in this study. A range of mesh densities, thicknesses of plates and geometries of mesh models are used for testing the programs, and the results indicate that the accuracies of both SAFE and PLATE are mostly related to irregular mesh models. The overall performance of PLATE is better than that of SAFE since its errors are acceptable in both the thin and thick plate situations, and the accuracy of SAFE is not satisfactory and not suitable for engineering purpose if irregular mesh with insufficient number of elements is used for the analysis. It is recommended that greater care must be exercised when the irregular mesh models are generated and used for analysis, and engineers should examine carefully the output results and better to compare the results with other commercial programs when unreasonable results are obtained.

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