Vibration and Sound Transmission Performance of Sandwich Panels with Uniform and Gradient Auxetic Double Arrowhead Honeycomb Cores

<div>The calculated STLs of the sandwich panels for verification by comparing (a) Figure 11 in [<a href="/journals/sv/2019/6795271/#B18">18</a>] and (b) the calculated STLs via the proposed method with the structural damping factor <i>η</i> = 0.001.</div>

Shock and Vibration

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Figure 12

Figure 12: Vibration and Sound Transmission Performance of Sandwich Panels with Uniform and Gradient Auxetic Double Arrowhead Honeycomb Cores 