Porous/multi-cell structures are widely used in practical engineering due to their excellent
energy absorption capacity and lightweight. In recent decades, as an important member of …

Honeycombs are ultra-light materials with outstanding mechanical properties, which mainly
originate from their unit cell configurations rather than the properties of matrix materials …

Honeycombs with re-entrant (RE) unit cells were found to have negative Poisson's ratios
(NPRs) and enhanced energy absorption capabilities than regular hexagon honeycombs …

In recent years, the enhanced auxetic honeycomb structure has attracted attention owing to
its high strength and negative Poisson's effect. The purpose of this study is to explore the …

In this work, a new hierarchical lattice design is proposed by replacing the original straight
beams of face-centered cubic (FCC) lattice with a string of higher-level circular beams from …

Metamaterials with negative Poisson's ratio (NPR) lattice structures have been of
considerable importance and interest in numerous engineering applications. A …

Auxetic honeycombs exhibit low weight, shear stiffness, and excellent energy absorption
capacity and thus have great potential for achieving the requirements of crashworthiness …

Many studies have focused on the topic of vehicle safety, including the study on
crashworthiness. In vehicle, a crash box structure is an integral component for ensuring the …

This manuscript has more than 150 papers as a reference about energy absorption of
auxetic structures and shows how several authors have approached the subject and how …

Lattice structures with high mechanical properties and lightweight performance attracted
increasing attention to the application of automotive, railway vehicle, and aerospace …