Behaviour of lignocellulosic fibre-reinforced cellular core under low-velocity impact loading: Taguchi method.

This work describes the compression and failure behaviour of multi-honeycomb, re-entrant honeycomb and silicomb honeycomb structures of various core height (thickness: 10, 20 and 30 mm) reinforced with different natural fibres (flax, jute and sisal). Moulds used for manufacturing the composite cores were produced using 3D printing technique with polylactic acid (PLA). Experiments based on Taguchi design (L9) were conducted to determine the effect of each factor on the ultimate compression stress, deformation and absorption energy. The magnitude of compressive stress varied into a range of 25.32 to 36.38 MPa. Also, values of absorption of energy varied from 22.34 to 33.76 Kj/m3. It was found that thickness has a significant effect on compression properties and failure behaviour. [ABSTRACT FROM AUTHOR]