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

<div>SPL distributions and dynamic deformations of the optimized models at 1400 Hz: (a) the optimized gradient DNPR model and (b) the optimized gradient INPR model.</div>

Shock and Vibration

fig15

Figure 15

Figure 15: Vibration and Sound Transmission Performance of Sandwich Panels with Uniform and Gradient Auxetic Double Arrowhead Honeycomb Cores 