A New Index for Finite Element Mesh Shape Evaluate

Zhang Ji; Chen Dailin; Wang Hui; Liang Bo

Citation: Zhang Ji, Chen Dailin, Wang Hui, Liang Bo. A New Index for Finite Element Mesh Shape Evaluate. Journal of Information Technologyin Civil Engineering and Architecture, 2011, 3(2): 16-20.

2011, 3(2): 16-20.

A New Index for Finite Element Mesh Shape Evaluate

Zhang Ji , Chen Dailin , Wang Hui , Liang Bo

Institution of Building Engineering Software, China Academy of Building Research, Beijing 100013, China

Web Publishing Date: 2011-06-01

Single element mesh shape evaluate index of ANSYS and SAP2000 is analyzed and summarized in the present paper.Based on this indexes, a new index is proposed. Benefit from the new index, not only single element mesh but also mesh compose of more elements can be evaluated. A cantilever beam problem is meshed by different shape and procedure programmed by C++ language is used to calculate this index of the mesh, after compared the solution with exact one, a conclusion can be draw that there is a strong correlation between the index value and the precision of solution. Multilayer and high-rise buildings mesh is also evaluated, the results show the index is still efficient and reliable.

Key words: Mesh, Finite Element Method, Shape Index

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