Abstract：In this paper, a structural topology optimization design is investigated based on the meshless radial point interpolation method (RPIM). Considering the relative density of Gauss quadrature points as a design variable, and the minimization of compliance as an objective function, the updating scheme for the design variable is created by using the solid isotropic microstructures with penalization (SIMP) and the optimality criteria method. The filter method is applied to eliminate the checkerboard pattern with the point state. The effects of different parameters on the topology optimization design are in detail discussed. Numerical examples show that the proposed approach is feasible and efficient for the topology optimization design.
2010, Vol. 31 
