Outside laboratory conditions and human-made structures, animals rarely encounter flat
surfaces. Instead, natural substrates are uneven surfaces with height variation that ranges …

Friction, wear, and the consequent energy dissipation pose significant challenges in
systems with moving components, spanning various domains, including …

Soft, worm-like robots show promise in complex and constrained environments due to their
robust, yet simple movement patterns. Although many such robots have been developed …

We present a multi-material three-dimensional-printed snakeskin with orthotropic friction
anisotropy, which permits undulatory slithering of a soft snake robot on rough surfaces. Such …

Deep foundation applications, such as foundations for jacket structures and reaction piles,
may benefit from larger shaft resistances during tensile compared with compressive loading …

Crawling animals with bendable soft bodies use the friction anisotropy of their asymmetric
body structures to traverse various substrates efficiently. Although the effect of friction …

Inspired by the morphology and material distribution characteristics of femoral trabecular
bone, four types of biomimetic triply periodic minimal surface (TPMS) heterogeneous …

Soil–structure interfaces typically exhibit a shear behavior that is independent of the
direction of relative displacement due to symmetry in the solid material's surface profile. This …

Presenting a novel framework for sustainable and regenerative design and development is
a fundamental future need. Here we argue that a new framework, referred to as complexity …

The louse fly Crataerina pallida is an obligate blood-sucking ectoparasite of the common
swift Apus apus. As a result of reduction of the wings, C. pallida is unable to fly; thus, an …