This work discusses some alternate models of a mixed assumed strain finite element which has been developed for laminated plates. After a brief theoretical review about this kind of plates and their possible finite element formulation, specifically devised for predicting the mechanical behavior of such structures, we discuss four possible assumptions for strains generating four kinds of mixed assumed strain finite elements. Several numerical tests performed on the aforementioned finite elements are thoroughly discussed in order to sketch some guidelines which can be useful when dealing with laminated plate problems.

中文翻译：

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层压板静力学和动力学的精确假设假定应变有限元模型

这项工作讨论了为层压板开发的混合假定应变有限元的一些替代模型。在对这种类型的板及其可能的有限元公式进行了简要的理论回顾之后，专门为预测此类结构的力学行为而设计了该方法，我们讨论了生成四种混合假定应变有限元的应变的四个可能假设。为了勾勒出一些在处理叠层板问题时可能有用的准则，对在上述有限元上进行的几个数值测试进行了全面讨论。