力矩不对称弹性理论中板的弯曲问题

Q4 Engineering
N. Rogacheva, Y. Zheglova
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引用次数: 0

摘要

对于现代实践中使用的许多材料,根据经典的弹性理论计算得出的结果是不正确的。为了保证结构的可靠运行,需要新的理论。目前,对实际应用特别感兴趣的是弹性的不对称力矩理论。本文采用假设的方法,将矩不对称弹性理论的三维方程简化为板理论方程。弹性弯矩理论中关于板的理论假设是在先前用数学方法将三维方程转化为二维理论的基础上提出的。正如在经典的弹性理论中一样,板的力矩理论的完整问题分为两个问题——平面问题和板的弯曲问题。平面问题的方程已在许多文献中得到。这种情况与弹性弯矩理论中板弯曲理论的构建不同。在这项工作中,首次提出了有根据的假设,并提出了一致的板弯曲理论。根据所得的应用理论,对矩形铰接板的弯曲进行了数值计算。计算结果以图形形式给出。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PROBLEM OF PLATE BENDING IN THE MOMENT ASYMMETRIC THEORY OF ELASTICITY
For a number of materials used in modern practice, calculations according to the classical theory of elasticity give incorrect results. To ensure the reliable operation of structures, there is a need for new theories. At present, of particular interest for practical applications is the asymmetric moment theory of elasticity. In the work, by the method of hypotheses, the three-dimensional equations of the moment asymmetric theory of elasticity are reduced to the equations of the theory of plates. The hypotheses of the theory of plates in the moment theory of elasticity are formulated on the basis of previously obtained our results of the reduction of three-dimensional equations to two-dimensional theories by a mathematical method. Just as in the classical theory of elasticity, the complete problem of the moment theory of plates is divided into two problems - a plane problem and a problem of plate bending. The equations of the plane problem have been obtained in many papers. The situation is different with the construction of the theory of plate bending in the moment theory of elasticity. In this work, for the first time, substantiated hypotheses are formulated and a consistent theory of plate bending is presented. A numerical calculation of the bending of a rectangular hinged plate is carried out according to the obtained applied theory. The calculation results are presented in the form of graphs.
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来源期刊
CiteScore
0.80
自引率
0.00%
发文量
43
审稿时长
4 weeks
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