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论文类型：期刊论文

发表时间：2015-12-01

发表刊物：ACTA MECHANICA SOLIDA SINICA

收录刊物：SCIE、EI、CSCD、Scopus

卷号：28

期号：6

页面范围：668-681

ISSN号：0894-9166

关键字：quasi-conforming; internal parameters; plane element; geometrically nonlinear

摘要：A linear 4-node quadrilateral quasi-conforming plane element with internal parameters is proposed. The element preserves advantages of the quasi-conforming technique, including an explicit stiffness matrix, which can be applied to nonlinear problems. The weak patch test guarantees the convergence of the element. Then the linear element is extended to the geometrically nonlinear analysis in the framework of Total Lagrangian (TL) formulation. The numerical tests indicate that the present element is accurate and insensitive to mesh distortion.