Application of the three-node triangular element with continuous nodal stress for free vibration analysis
Yang, Yongtao1; Xu, Dongdong2; Zheng, Hong1
刊名COMPUTERS & STRUCTURES
2016
卷号169页码:69-80
关键词Partition of unity method Hybrid FE-Mesh free element Trig3-CNS Mesh distortion
ISSN号0045-7949
DOI10.1016/j.compstruc.2016.03.008
英文摘要A three-node triangular element with continuous nodal stress (Trig3-CNS) was recently proposed for static analysis. The Trig3-CNS element, which is the development of the partition-of-unity based "FE-Meshfree" quadrilateral element with continuous nodal stress (Quad4-CNS), uses hybrid shape functions that combine the meshfree and finite element shape functions so as to synergize the individual strengths of meshfree and finite element methods. As a result, high order global approximations in Trig3-CNS element could be easily constructed without adding extra nodes and DOFs, thereby achieving high accuracy and convergence rate. In this paper, the element is further applied to conduct free vibration analysis of two-dimensional solids. The numerical tests in the present work demonstrate that Trig3-CNS has higher tolerance to mesh distortion and gives more accurate solution as compared to the three-node triangular element (Trig3) and four-node quadrilateral element (Quad4). (C) 2016 Elsevier Ltd. All rights reserved.
WOS研究方向Computer Science ; Engineering
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000375630600006
内容类型期刊论文
源URL[http://119.78.100.198/handle/2S6PX9GI/3875]  
专题岩土力学所知识全产出_期刊论文
国家重点实验室知识产出_期刊论文
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ;
2.Yangtze River Sci Res Inst, Minist Water Resources, Key Lab Geotech Mech & Engn
推荐引用方式
GB/T 7714
Yang, Yongtao,Xu, Dongdong,Zheng, Hong. Application of the three-node triangular element with continuous nodal stress for free vibration analysis[J]. COMPUTERS & STRUCTURES,2016,169:69-80.
APA Yang, Yongtao,Xu, Dongdong,&Zheng, Hong.(2016).Application of the three-node triangular element with continuous nodal stress for free vibration analysis.COMPUTERS & STRUCTURES,169,69-80.
MLA Yang, Yongtao,et al."Application of the three-node triangular element with continuous nodal stress for free vibration analysis".COMPUTERS & STRUCTURES 169(2016):69-80.
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