Dynamic Response of Soft Core Sandwich Beams with Metal-Graphene Nanocomposite Skins

Table 13

Frequency Ω and loss factors (Hz). .

	Model; Skins	FSDT-FSDT		HSDT-FSDT		HSDT-HSDT
		Ω [Hz]	[%]	Ω [Hz]	[%]	Ω [Hz]	[%]
10	Al	158.49; 978.56; 2688.32; 5102.76; 5133.79	0.216; 0.039; 0.012; 0.000002; 0.012	158.62; 978.56; 1212.72; 1997.36; 2685.19	0.259; 0.051; 19.474; 26.422; 0.059	150.48; 731.58; 1044.91; 1108.47; 1126.93	0.284; 0.038; 0.004; 0.00097; 0.0004
10	Ti	270.05; 1668.55; 4584.31; 8702.33; 8754.35	0.159; 0.028; 0.008; 0.000001; 0.005	270.17; 1217.13; 1667.21; 2000.13; 2894.56	0.191; 19.334; 0.064; 26.349; 28.507	256.22; 1217.12; 1252.76; 1896.45; 1906.56	0.211; 19.334; 0.034; 0.004; 0.0009
20	Al	40.10; 247.69; 688.96; 1340.16; 2195.59	0.835; 0.153; 0.047; 0.022; 0.013	40.22; 247.82; 689.02; 790.06; 1339.91	0.991; 0.184; 0.058; 23.799; 0.035	38.18; 227.66; 563.54; 790.06; 850.14	1.101; 0.202; 0.054; 23.799; 0.018
20	Ti	68.16; 422.13; 1174.71; 2285.27; 3744.08	0.620; 0.113; 0.034; 0.016; 0.010	68.284; 422.27; 784.07; 1174.34; 1785.93	0.739; 0.137; 24.166; 0.055; 28.971	64.74; 387.99; 784.07; 963.30; 1458.39	0.824; 0.150; 24.166; 0.045; 0.018