Nonlinear elastic parameter identification of knitted wire mesh structure
- Paper number
IAC-17,C2,IP,38,x38727
- Author
Prof. Tuanjie Li, Xidian University, China
- Coauthor
Mr. Tao Zhang, China
- Coauthor
Dr. Yaqiong Tang, Xidian University, China
- Coauthor
Prof. Xiaofei Ma, China
- Year
2017
- Abstract
With the rapid development of communication technology, knitted wire mesh structure has been widely used in large deployable antennas to reflect electromagnetic wave. The knitted wire mesh is weaved by thousands of metal wires and its elastic parameters depend on many factors including woven form, dimensions, boundary loads and so on. Therefore, it is of great significance to study how to model the complex structure accurately and how to identify its nonlinear elastic parameters. In this paper, a method for recognizing the nonlinear elastic parameters of a small-size wire mesh was proposed. Firstly, an orthotropic plate bending structure was used to make the equivalent of the knitted wire mesh, and nine independent elastic parameters were chosen to describe the mechanical properties of the knitted wire mesh. Secondly, the mechanical model of the small-size wire mesh was established by Finite Element Method, and the change tends of nine independent elastic parameters with different boundary loads were investigated by simulations. Finally, a two-bar tricot knitted wire mesh structure was taken as a numerical example to verify the practicable of the proposed identification method.
- Abstract document
- Manuscript document
IAC-17,C2,IP,38,x38727.pdf (🔒 authorized access only).
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