Auxetic foams counter-intuitively expand (shrink) under stretching (compression). These
foams can exhibit superior mechanical properties such as resistance to shear and …

Rational design of artificial micro-structured metamaterials with advanced mechanical and
physical properties that are not accessible in nature materials is challenging and important …

Auxetic materials have excellent mechanical properties, eg, indentation resistance, shear
resistance, fracture toughness and energy absorption. However, the stiffness of auxetics is …

Auxetics are a class of structural metamaterials with a negative Poisson's ratio. In
comparison to conventional structures, auxetic structures are proven to exhibit several …

Materials and structures with negative Poisson's ratio exhibit a counter-intuitive behaviour.
Under uniaxial compression (tension), these materials and structures contract (expand) …

Auxetic metamaterials with excellent mechanical properties have attracted considerable
attention for use in various applications, especially for energy-absorption. In this work, novel …

In the past decades, auxetic metamaterials have attracted extensive attention due to their
desirable properties. In order to further improve the energy absorption properties of auxetic …

In this paper, rigid polyurethane (PU) foam was filled into hollow auxetic tube for enhancing
the energy absorption. The rigid PU foams and stainless-steel auxetic tube with different …

Nowadays, with more electrical devices developed and applied in wide fields, efficient
electrical energy generation is always one of the front-end and practical topics in …

In recent years, the mine tunneling method and the new Austrian tunneling method have
been considered the main theories of tunneling approaches in China. It is difficult for the …