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

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@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:

  1. B=0
  2. D=h^2/12 A

Generally speaking, if the laminate subgroup repeats many times (i.e., the lamina is 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 lamina group repeats.

  1. Lee, C.-Y. and Yu, W.: “Homogenization and Dimensional Reduction of Composite Plates with In-Plane Heterogeneity,” International Journal of Solids and Structures, vol. 48, no. 10, 2011, pp. 1474-1484.
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