Acta Mechanica Solida Sinica

, Volume 19, Issue 2, pp 103–113 | Cite as

An equivalent continuum method of lattice structures

  • Hualin Fan
  • Wei Yang


An equivalent continuum method is developed to analyze the effective stiffness of three-dimensional stretching dominated lattice materials. The strength and three-dimensional plastic yield surfaces are calculated for the equivalent continuum. A yielding model is formulated and compared with the results of other models. The bedding-in effect is considered to include the compliance of the lattice joints. The predicted stiffness and strength are in good agreement with the experimental data, validating the present model in the prediction of the mechanical properties of stretching dominated lattice structures.

Key words

stretching dominated lattice materials equivalent continuum method effective stiffness yield surface bedding-in effect 


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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2006

Authors and Affiliations

  1. 1.Department of Engineering MechanicsTsinghua UniversityBeijingChina

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