Table 1. Elastic parameters of the materials used in the text.

Material	ρ (Kg/m3)	C11 (GPa)	C12 (GPa)	C33 (GPa)	C13 (GPa)	C66 (GPa)
Aluminum	2.7E3	108.2	51.2	C11	C12	(C11 − C12)/2
Gold	19.5E3	190	161	C11	C12	(C11 − C12)/2
Effective Material	9.63E3	61.1	32.3	79.2	36.6	(C11 − C12)/2