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Table 1.
Quantitative results of optimization with different criteria of stiffness. (Although there is no parameter ρ in the optimization of end compliance and complementary work, ρ is set to 20 for the comparison. The volume of all the optimal structures are 50% of the reference domain. The unit of W, U, UC is J.)
| Stiffness criterion in optimization | 100 kN |
200 kN |
||||||
|---|---|---|---|---|---|---|---|---|
| KS | W | U | UC | KS | W | U | UC | |
| KS | 0.11 | 12,083 | 5997 | 6086 | 0.13 | 45,210 | 21,279 | 23,931 |
| W | 0.11 | 11,845 | 5875 | 5969 | 0.13 | 45,518 | 20,740 | 24,777 |
| UC | 0.11 | 11,846 | 5882 | 5964 | 0.13 | 45,786 | 22,345 | 23,441 |
| Stiffness criterion in optimization | 300 kN | 500 kN | ||||||
| KS | 0.14 | 96,090 | 44,111 | 51,978 | 0.18 | 239,634 | 104,774 | 134,860 |
| W | 0.15 | 95,395 | 38,009 | 57,385 | 0.22 | 220,999 | 77,043 | 143,956 |
| UC | 0.15 | 98,435 | 46,911 | 51,523 | 0.18 | 240,152 | 104,942 | 135,209 |
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