SHAPE OPTIMIZATION OF STRUCTURES TO MINIMIZE STRESS-CONCENTRATION

Taking into consideration the characters of shape optimization of two-dimensional elastic bodies, a new technique is presented which combines the boundary element method with sequential linear programming with an adaptive move limit to optimize the variable boundary curves of structures in order to reduce stress concentration. The problem of the singular integral in sensitivity analysis is treated. Two numerical examples of structures are shown in order to demonstrate the effectiveness of the proposed shape optimization technique. © 1990.