Low-velocity impact behaviour of green epoxy biocomposite laminates reinforced by sisal fibers

6533b7d3fe1ef96bd126157a

RESEARCH PRODUCT

Low-velocity impact behaviour of green epoxy biocomposite laminates reinforced by sisal fibers

Bernardo Zuccarello F Bongiorno Gabriella Epasto Carmelo Militello

subject

Materials science Biocomposites Natural fibers Sisal Impact strength Computed tomography 02 engineering and technology Impact test Impact strength Sisal Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine 0203 mechanical engineering Fiber Composite material Computed tomography SISAL Civil and Structural Engineering computer.programming_language Biocomposites Biocomposites Computed tomography Impact strength Natural fibers Sisal Izod impact strength test Epoxy 021001 nanoscience & nanotechnology Aramid 020303 mechanical engineering & transports visual_art Volume fraction Ceramics and Composites visual_art.visual_art_medium Natural fibers Biocomposite 0210 nano-technology computer

description

Abstract Due to its good mechanical characteristics, low cost and high availability in the current market, sisal fiber is one of the most used for the manufacturing of biocomposites in various industrial fields (automotive, marine, civil construction etc.). The particular sub-fibrillar structure of the sisal fiber (similar to aramid fibers) and the corresponding anisotropic behavior detected by recent research activities, suggest that such biocomposites should exhibit also high impact strength, in such a way to permit their advantageously use also for the manufacturing of crashworthy components (bumpers, helmets, protection systems etc.), that are at the same time also eco-friendly, lightweight and cheap. Through a low-velocity impact tests campaign, integrated by computer tomography (CT) and carried out on various “green epoxy”/sisal laminates, by varying the main influence parameters such as reinforcement distribution, fiber volume fraction and lay-up, it has been detected that angle-ply laminates exhibits specific impact performances superior to those of biocomposites reinforced by other natural fibers (flax, hemp, jute, etc.), and comparable with those of the best composites specially reported in literature, so that they can be actually used to substitute the synthetic materials for the manufacture of interesting eco-friendly energy absorbing devices, that are also lighter and cheaper.

year	journal	country	edition	language
2020-12-01	Composite Structures

https://doi.org/10.1016/j.compstruct.2020.112744