Optimization of Impact Resistant Structures with Negative Poisson’s Ratio Based on Response Surface Methodology

In order to enhance the blast resistance capabilities of critical structural elements in buildings, a blast-resistant honeycomb sandwich protective structure based on a negative Poisson’s ratio structure was proposed and designed. The failure mechanisms of the protective structure under distributed impulse loads were investigated. The structural parameters of the protective structure were optimized using the response surface methodology, and simulation analysis was conducted using the finite element method. The results demonstrate that the optimized negative Poisson’s ratio honeycomb sandwich protective structure exhibits excellent blast resistance performance.