Mechanical metamaterials with negative Poisson's ratio have attracted widespread attention
in recent decades due to their unique mechanical properties. This metamaterial often …

In recent years, there has been a notable increase in the significance of active mechanical
metamaterials capable of being remotely manipulated through changes in external stimuli …

Sports concussions are a public health concern. Improving helmet performance to reduce
concussion risk is a key part of the research and development community response. Direct …

In this study, a 3D re-entrant anti-trichiral honeycomb (RATH) structure with the combination
of various deformation mechanisms was proposed and formed through SLM additive …

Auxetic closed cell foams, and highly viscoelastic foams, both show potential to improve
impact protection. Specifically, auxetics adapt to the shape of impacting bodies, while highly …

In order to further increase the mechanical properties of auxetic structures, a novel
enhanced composite (NEC) auxetic structure was proposed and characterized by the …

Mechanical metamaterials have tunable material properties, and the architecture of such
materials can be tuned to impart Negative Poisson's Ratio (NPR). However, architected …

Aluminum foams are porous and recyclable lightweight materials with outstanding
mechanical features, such as their energy absorption capabilities, their most noteworthy …

In response to the challenge of low stiffness and energy absorption capacity, various
designs of negative Poisson's ratio (NPR) structures have emerged. However, these designs …

Polymethacrylimide (PMI) foams exhibit great potentials in engineering applications thanks
to its outstanding lightweight and superior mechanical properties. However, the temperature …