Table 2 Natural frequencies and modal loss factors of the sandwich beam under a clamped-free boundary condition.

From: Modal analysis and design optimization of natural fibre-based sandwich structures for enhanced damping and stiffness

Mode

Natural frequencies (Hz)

Modal loss factor

H. Arvin et al.45

Present analysis

H. Arvin et al.45

Present analysis

1

65.05

64.98

0.0817

0.0816

2

299.69

299.49

0.0721

0.0720

3

750.44

749.94

0.0463

0.0462

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