کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
782506 | 1465012 | 2013 | 9 صفحه PDF | دانلود رایگان |
The mechanical properties of micro-lattice structures subjected to a normal stress state are investigated using both a classical beam theory approach and the finite element technique. In particular, an approach for predicting the yield surface of lattice structures subjected to either a uniaxial or a biaxial stress state is proposed. In addition, the geometrical and material conditions for the occurrence of elastic buckling under a triaxial stress state are identified. The stiffness and plastic collapse strengths of the micro-lattice structures are compared with the corresponding properties of other lightweight structures. It is shown that micro-lattices offer significant potential for use in the design of lightweight cellular structures.
► This paper provides the estimation equations of mechanical properties for the micro-lattice.
► The estimated mechanical properties agree well with numerical results using FE analysis.
► The conditions for the occurrence of elastic buckling under a triaxial stress state are identified.
► This structure can offer significant potential for use in the design of lightweight structures.
Journal: International Journal of Mechanical Sciences - Volume 68, March 2013, Pages 47–55