Enhancing the compression resistance of buffer cushions using an inner concave negative Poisson's ratio structure.

ABSTRACT: To enhance the compression resistance of the existing buffer cushions, this paper developed a novel buffer cushion with an inner concave negative Poisson's ratio (NPR) structure. The structure parameters of buffer cushion were optimized based on orthogonal experimental design and theoretical analysis. Furthermore, the finite element models of the NPR cushion and a comparable hexagonal cushion were established. Then the quasi-static compression and dynamic impact compression simulations and compression experiments using a 3D printed model were conducted to analyze the compression resistance of the NPR cushion. The results showed that the developed NPR cushion exhibited good compressive properties under a uniform load of at most 47 MPa, and its deformation was 73.49% of the deformation of th

SUBMITTER: Li D 

PROVIDER: S-EPMC11970642 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature