Microstructural Topology Optimization of Constrained Layer Damping on Plates for Maximum Modal Loss Factor of Macrostructures

Table 4

Topological designs of viscoelastic damping material microstructures for four different meshes.

	15 × 15 × 15	20 × 20 × 20	25 × 25 × 25	30 × 30 × 30
Microstructure
Number of iterations	51	57	77	100
Computational cost (s)	1053.94	2809.80	7615.37	17812.88
Effective storage shear modulus (MPa)
Modal loss factor	0.0648	0.0648	0.0648	0.0649