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Mechanical response and energy absorption of X-shaped auxetic honeycomb sandwich beams under three-point bending
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X
张
DOI：10.1016/j.tws.2026.115505.png)
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Abstract
En 中文
• A novel X-shaped auxetic honeycomb sandwich beam with enhanced bending resistance is proposed. • The coupling effects of core orientation and loading position on bending performance are systematically revealed. • Orientation-dependent deformation mechanisms are identified to optimize load-bearing and energy absorption. • Gradient core distribution and face-sheet strengthening suppress local indentation and improve structural stability. • The X-shaped auxetic beam outperforms conventional re-entrant honeycomb beam in stability and energy absorption.
Keywords:
Sandwich beam
Auxetic honeycomb
Metamaterial
Three-point bending
Energy absorption
Journal
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6.6
Papers:
1.1W
Citations:
4.0W
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