Abstract
The stiffness control models on the ground structure are employed to simulate the creation of structure design of the optimum layout problem. The lattice truss are modeled as assembleges of a number of unit cells, which repeat to undergo finite element analysis to feed back the stress results to the stiffness of each member. Through the repeated this analysis, the truss model are 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 examples by the lattice truss.
