TY - EJOU AU - Juan, Zheng AU - Shuyao, Long AU - Yuanbo, Xiong AU - Guangyao, Li TI - A Topology Optimization Design for the Continuum Structure Based on the Meshless Numerical Technique T2 - Computer Modeling in Engineering \& Sciences PY - 2008 VL - 34 IS - 2 SN - 1526-1506 AB - In this paper, the meshless radial point interpolation method (RPIM) is applied to carry out a topology optimization design for the continuum structure. Considering the relative density of nodes as a design variable, and the minimization of compliance as an objective function, the mathematical formulation of the topology optimization design is developed using the SIMP (solid isotropic microstructures with penalization) interpolation scheme. The topology optimization problem is solved by the optimality criteria method. Numerical examples show that the proposed approach is feasible and efficient for the topology optimization design for the continuum structure, and can effectively overcome the checkerboard phenomenon. KW - Radial point interpolation method (RPIM) KW - topology optimization design for continuum structure KW - SIMP KW - optimality criteria method KW - checkerboard phenomenon DO - 10.3970/cmes.2008.034.137