## What is/are Graded Honeycomb?

Graded Honeycomb - Considering that the strength of electromagnetic wave loss is dominated by the imaginary part of the complex dielectric constant, the EEP extraction method is built by optimizing the imaginary part of the complex dielectric constant according to the GHAM’s physical properties, such as the coating thickness of each layer for the GHAM, the increment between two adjacent gradient coatings, the layers of the GHAM, and the total axial height of graded honeycomb.^{[1]}A novel bi-graded honeycomb was proposed by introducing both in-plane and out-of-plane thickness gradients into a regular honeycomb.

^{[2]}Experiment results showed that the compression behavior of graded auxetic honeycomb was different from that of graded honeycomb with positive Poisson's ratio owing to the horizontal shrinkage deformation and the gradient distribution had effects on the crushing stress and Poisson's ratio.

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