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Numerical Analysis on Static Mechanical Properties of the Periodic Multilayer Lattice Material

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DOI: 10.4236/eng.2011.312143    5,336 Downloads   9,024 Views   Citations

ABSTRACT

Lattice material is a typical periodic structural material, and the gaps of the lattice material are often used to carry filling materials. In order to satisfy the load-carrying requirements of a certain multifunction/structure integrated composite material, four different 3D periodic multilayer lattice materials were proposed in this paper, such as the square, the quadrate, the tetrahedron and the hexagon. The BEAM189 element in ANSYS was adopted to predict their static mechanical properties, and the Mises strength criterion was taken as the failure criterion. Based on the solution of FEM, the axial stress and displacement of the top surface were obtained. The results indicated that adopting the relative stiffness and the load-mass ratio as the overall assessment is effective to evaluate the overall bearing capacity of the multilayer lattice materials. Given the same cross-section size of the cellular configuration, the hexagon multilayer lattice material shows the relatively optimal overall bearing capacity in the four configurations, while the tetrahedron configuration performs the worst.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

R. Guo, R. Liu, W. Jiang, K. Chen, J. Zhang, F. Huang and X. Sun, "Numerical Analysis on Static Mechanical Properties of the Periodic Multilayer Lattice Material," Engineering, Vol. 3 No. 12, 2011, pp. 1149-1154. doi: 10.4236/eng.2011.312143.

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