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Table 2.

Comparison of the optimal model and the hexagonal honeycomb model.

Optimal model Hexagonal honeycomb model
Maximum stress in the ceramic shell (Mpa) 1.709 2.643
Maximum deformation of the ceramic shell (mm) 5.508 8.251
Strain energy of the whole structure (J) 62.716 128.324
The volume of the periodic resin part (mm3) 186511.572 187812.309

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