Experimental study on two-body and three-body abrasive wear behaviour of jute-natural rubber flexible green composite

The use of laboratory testing has become more significant to assess abrasion resistance in flexible reinforcement of armour and car structural components. In this study, compliant composite with constituents as woven jute fabric and natural rubber (NR) encapsulated in an NR-based B stage cured prepreg were tested for wear due to abrasion under two- and three-body conditions. Flexible composites are fabricated in three different configurations namely Jute/Rubber/Jute (JRJ), Jute/Rubber/Rubber/Jute (JRRJ) and Jute/Rubber/Jute/Rubber/Jute (JRJRJ). The present study makes use of abrasive paper with a grit size of 60 and silica sand with size 250 µm as the abrasive medium for two- and three-body abrasion tests respectively and the specific rate of wear is calculated. Though the wear trend of the composites follows a similar pattern in the case of two- and three-body wear, the mechanisms governing the wear are found to be different. The morphology of the worn surface is studied with the aid of a scanning electron microscope.

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

Journal of Thermoplastic Composite Materials ◽

10.1177/08927057211017185 ◽

2021 ◽

pp. 089270572110171

Author(s):

Vishwas Mahesh ◽

Sharnappa Joladarashi ◽

Satyabodh M Kulkarni

Keyword(s):

Wear Resistance ◽

Wear Rate ◽

Natural Rubber ◽

Woven Fabric ◽

Specific Wear Rate ◽

Silica Sand ◽

Wear Behaviour ◽

Future Research ◽

Flexible Composites ◽

Three Body

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.

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Wear and Frictional Behaviour of Metals

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.893.430 ◽

2014 ◽

Vol 893 ◽

pp. 430-435

Author(s):

J.G. Alotaibi ◽

B.F. Yousif ◽

T.F. Yusaf

Keyword(s):

Stainless Steel ◽

Thermal Loading ◽

Operating Parameters ◽

Thermal Imager ◽

Contact Conditions ◽

Dry Contact ◽

Three Body Abrasion ◽

Three Body ◽

Worn Surface ◽

Frictional Behaviour

In the current study, wear and frictional performances of different metals are investigated under different operating parameters against stainless steel counterface under dry contact conditions. The experiments performed using block on ring machine. Microscopy was used to examine the damage features on the worn surface and categorize the wear mechanism. Thermal imager was used to understand the thermal loading in the interface during the rubbing process. The results revealed that the operating parameters influence the wear and frictional behaviour of all the metals. Brass metal exhibited better wear and frictional behaviour compared to others. Three different wear mechanisms were observed, i.e. two body abrasion (Brass), three body abrasion (Aluminium) and adhesive (Mild Steel).

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