DESIGN OF MICROSTRUCTURE FOR POROUS MATERIAL WITH MAXIMUM BULK MODULUS
This paper presents a new approach to designing periodic microstructures of cellular materials.The method is based on the bidirectiona evolutionary structural optimization (BESO) technique.The optimization problem is formulated as finding a micro-structural topology with the maximum bulk under a prescribed volume constraint.Using the homogenization theory and finite element analysis within a periodic base cell (PBC).elemental sensitivity numbers are established for gradually removing and adding elements in PBC.Numerical examples demonstrate the effectiveness of the proposed method for achieving convergent microstructures of cellular materials with maximum bulk.Some interesting topological patterns have been found for guiding the cellular material design.
Topology optimization,Bi-directional Evolutionary Structural Optimization (BESO),Periodic base cell (PBC),Inverse homogenization
X.Huang A.Radman Y.M.Xie
School of Civil,Environmental and Chemical Engineering,RMIT University.GPO Box 2476V,Melbourne 3001,Australia
国际会议
The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)
上海
英文
258-261
2011-05-22（万方平台首次上网日期，不代表论文的发表时间）