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论文类型：期刊论文

发表时间：2017-03-12

发表刊物：MECHANICS OF ADVANCED MATERIALS AND STRUCTURES

收录刊物：SCIE、EI、Scopus

卷号：24

期号：4

页面范围：271-286

ISSN号：1537-6494

关键字：Asymptotic homogenization; effective shear stiffness; finite element method; periodic structures; Reissner-Mindlin plate

摘要：In this article, an intuitionistic interpretation of the new numerical implementation of asymptotic homogenization for effective bending stiffness of in-plane periodic plate structures is presented. Based on this interpretation, a two-step method of effective shear stiffness prediction for their Reissner-Mindlin model is developed. An equivalent displacement field of linear curvature is applied to a unit cell in the first step; in the second step, a new unit cell problem is constructed and solved, and the effective shear stiffness is obtained through energy equivalence. This method can be easily implemented in commercial software and several examples are given to demonstrate its validity.