“…In many of the topological optimization studies, homogenization method 243,358,378,427,466,472,514,528,776,806,828,846,886,888,925,939,966,982 is used. In some of the studies, researchers used search algorithms specifically developed for composites optimization like layerwise optimization, 206,447,490,586,630,681,688,723,783,837,895 in which each layer is one-by-one sequentially optimized. In some of the studies, 192,261,269,293,429,452,495,501,563,753,775,868,871,894,912,948 multilevel approach is adopted in which one objective function is extremized after another or the same objective function is extremized using different design variables at different stages.…”