Abstract
In this paper, we discuss the topology and shape optimization scheme of continuum structures by using genetic algorithm (GA). The profiles of the structures are defined by the cross-section between the 3 D spline function surface and the 2 D plane. The genetic representation of the structure is defined by the series of the coordinates of the control points. Then, the genetic operations are applied for determining the profile of the structure satisfying the design objectives. The present scheme is applied to minimum weight design of two dimensional elastic problems in order to confirm its validity.
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