Three body abrasive wear assessment of novel jute/natural rubber flexible green composite

Vishwas Mahesh,Sharnappa Joladarashi,Satyabodh M Kulkarni

doi:10.1177/08927057211017185

Abstract

Determining the resistance to abrasion of the flexible cladding for armours and automobile structural components with the aid of lab scale tests has become increasingly important. In the present study, three body wear behaviour of flexible green composites comprising of jute in woven fabric form with interleaved natural rubber sheets bonded through rubberized B stage cured Pre pegs have been studied. Flexible composites are fabricated in three different configurations having different layers of jute and rubber. The present study makes use of silica sand as the abrasive medium. The specific wear rate along with loss in mass and volume of the composite due to wear is determined and it was found that specific wear rate is dependant of the sliding distance. Comparing the specific wear rate of all the three stacking sequences, it was found that JRJ stacking sequence provides better wear resistance. Compliant and tough nature of the rubber makes it hard to wear it out through tearing action and also the wear resistance of flexible composites is enhanced with inclusion of rubber. Mechanism of wear in each of the constituent used is studied. The present study serves as a benchmark work for the future research in this area.

Highlights

Thrust for newer class of materials is growing day by day
This can be justified by the middle part of the graph (From sliding distance 214.89 m to 322.33 m) where the increase in volume loss is more rapid compared to later part of the graph where the volume loss tends to slower down. This is due to the compliant and tough nature of the rubber which makes it hard to wear it out Observing the specific wear rate of all the three configurations, it is evident that JRJ exhibits lesser specific rate of wear compared to its counterparts
For the proposed composites with varied configurations used in the present study, the specific wear rate reduces with increase in sliding distance

Summary

Introduction

Thrust for newer class of materials is growing day by day. Composites have emerged as the potential materials in almost all fields of engineering. Two body wear happens to occur is material removal operations where the abrasive particles are fixed and slides across the surface from where the material is removed, whereas in case of wear involving three bodies, the abrasives freely move relative to one another and may likewise pivot during sliding over the surface where wear happens. This kind of wear is more evident in engineering applications and finds a more prominent place compared to two body wear. It was found that by using flexible matrix materials, the catastrophic failure of the components can be eliminated.[14,15,16,17]

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Conclusion