Abstract
This paper presents sizes and shapes optimization of edge ribs of the low-yield steel shear panel damper (SPD) for improving the deformation ability. A minimization problem of maximum accumulated equivalent plastic strain, an index of the deformation ability of SPD, is formulated . The response surface methodology combined with the design of experiment technique is applied as the optimization methodology. In this study, finite element analysis with isotropic/kinematic hardening model was used to simulate the cyclic elasto-plastic behavior instead of experimental approach, and the numerical solutions were confirmed by comparing to previous experimental results. Based on the numerical analysis, the shape parameters effects were investigated and second order polynomials were fitted to obtain the regression equations of the maximum accumulated equivalent plastic strain. The final optimal size and shape were determined by using the regression equations.
