Abstract
The models of the ground structure method are employed to simulate the creation of structural design of the optimum layout problem. The lattice truss is modeled as assembleges of a number of unit cells which repeat to undergo finite element analysis to feed-back results of stress to the stiffness of each member. Through the feed-back stiffness control, the lattice truss model is represented to form the topological materials and the structural shape with the use of the local stress condition without mathematical optimum tools. It is successful to analyse the shape-layout problem as numerical samples on the lattice truss model.
