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I have replied in another post because I think it is worth a separate post @FDanzi

Master Laminates to Simplify Design, Manufacturing, and Testing of Composites | Stephen W Tsai

@FDanzi great points. It seems that many advantages are offered through the fact DD laminates are close to be homogeneous. However, for a laminate to be homogenizable, there are two constraints: B=0 D=h^2/12 A Generally speaking, if the laminate subgroup repeats many times (thus the lamina must able be thin), these two conditions will be satisfied, not only DD laminates. Please refer to the following paper (Example section 4.1) on showing B is proportional to 1/N with N as the number of repea…