Resistance reduction of patterned surface inspired by cuticle structure of Achalinus spinalis

Abstract The crawling process of snakes is known to have fascinating tribological phenomena, whereas investigations on their frictional properties depending patterned cuticles are insufficient. In this study, we designed and fabricated biomimetic microstructures inspired by the geometric microunits Achalinus spinalis cuticle using polyurethane acrylate (PUA) material performed its analysis. micro-morphology -inspired textured polymer surface (AITPS) characterized closely evenly quasi-rectangular microgrooves, periodically arranged along certain orientations. We compared performance our AITPS with other competitive microstructure, a smooth steel ball commercial clay as an interacting surface. After performing massive friction tests clay, still maintains good resistance reduction straight which most likely due actual contact areas at interface.