Tunable Energy Absorbing Property of Bilayer Amorphous Glass Foam via Dry Powder Printing.

Densification strain increases with the decrease in relative density and interestingly, there is a clear trend that the bilayer system has a higher densification strain than uniform foam.

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While the curve (b) and (c) show a decreasing trend, curve (d) shows an increase in the second plateau stress, and the increase can be explained by a less severe fracture of the thinner GF4 layer and the combination of plateau stress and densification process.

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