In this paper, theoretical analysis for a cantilever beam subjected to shear and compression under large scale of plastic deformation (=plastica) is pressented, and applied to the estimation of energy absorption capacity for micro-lattice structure (BCC). The precision for estimating the compressive behaviour of BCC structure depends on the stress and strain relationship just after plastic yielding. Also, based on the theoretical result, approximate equation for the average stress σave at densificaron is proposed, and checked the effectiveness of the approximation by comparing with FEM numerical results.
|Number of pages||8|
|Journal||Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A|
|Publication status||Published - Mar 2010|
- Energy absorption capacity
- Finite element method
- Numerical analysis
- Structural analysis