This analysis shows enhanced blast resistance in sandwich structures using auxetic designs, indicating superior energy absorption and lower deformation.
Sandwich structures, with thin, stiff face sheets bonded to lightweight cores, are ideal for applications requiring high strength-to-weight ratios and energy absorption, like those exposed to explosions. This study examines the dynamic behavior of sandwich panels with auxetic double arrowhead-shaped cores under explosive loading using ABAQUS Explicit Dynamics code. Modified core designs (single-, double-, and triple-layer triangular shapes) are compared to the conventional design. Results show the double-layer triangular core excels in blast resistance, reducing deformation and stress while enhancing energy absorption. These findings highlight its potential for blast-resistant applications.
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Babu et al. (2025) studied this question.
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