Ritesh R Bhat

Manipal Academy of Higher Education | MAHE · Mechanical and Manufacturing Engineering, MIT

Drilling is the most widely used material removal process and contributes to be one of the most important processing techniques in almost all the assembly process. Composite material, in particular the glass fibre reinforced polymer composites, is an advanced family of materials, which keeps attracting the manufacturers since the marking of its exi...

Operating speed of an engine remain a significant factor for customers and is controlled by the variable speed governors. Failure of engine components represents a familiar phenomenon. Failure analysis of the governor of the diesel engine remains the focus of this article. Various methods, either experimental or statistical methods are employed in...

This article aims to optimize the drilling process parameters using an integrated approach of the central composite design (CCD), the technique for order of preference by similarity to ideal solution (TOPSIS) and response surface method (RSM) to reduce delamination in the marine grade glass fiber reinforced polyester (GFRP) drilling. Marine grade G...

The present work investigates the effect of material geometry in terms of material thickness on the mechanical properties of glass fiber reinforced isophthalic polyesters. The tensile strength, flexural strength, and Barcol hardness quantify the mechanical properties in this article. The experimental tests as per the ASTM standards show that the te...

This study explores the effects of four independent variables-the nanoclay weight percentage , sliding velocity, load, and sliding distance-on the wear rate and frictional force of nanoclay-filled FormuLITE TM amine-cured bio-based epoxy composites. An experimental design based on the Taguchi method revealed diverging optimal conditions for minimiz...

In the marine industry, glass fibers are commonly used to reinforce polyesters for ship hulls, submarine components, and other marine structures. Isophthalic polyesters are a feasible alternative due to their superior mechanical qualities and added end-of-life scenarios compared to orthophthalic polyesters. However, like other fiber composite syste...

In the marine industry, glass fibers are commonly used to reinforce polyesters for ship hulls, submarine components, and other marine structures. Isophthalic polyesters are a feasible alternative due to their superior mechanical qualities and added end-of-life scenarios compared to orthophthalic polyesters. However, like other fiber composite syste...

The combination of awareness of harmful industrial processes, environmental concerns, and depleting petroleum-based resources has spurred research in developing sustainable materials from renewable sources. Natural bio-based polymers have replaced synthetic polymers because of growing concern about environmental sustainability. As a result of heati...

In the marine industry, glass fibers are commonly used to reinforce polyesters for ship hulls, submarine components, and other marine structures. Isophthalic polyesters are a feasible alternative due to their superior mechanical qualities and added end-of-life scenarios compared to orthophthalic polyesters. However, like other fiber composite syste...

Composite materials, particularly glass fiber reinforced polymer (GFRP) composite, have established a strong presence in the marine industry. Its marine applications range from constructing massive naval vessels to constructing simple fishing boat hulls. Previous research has established that seawater aging has a detrimental effect on the physical...

Outcome-based education (OBE) by Washington Accord (WA) promises to improve the technical education system by clarifying expectations for students and focussing assessment on specific learning outcomes for better measurement of student achievements. Numerous publications describe the process and results of OBE implementation in India. This article...

Nanoparticles filled fiber reinforced polymer composites are gaining widespread application due to the exhibition of peculiar and unique properties that can be tailored to suit specific requirements. The current paper discusses the fabrication of glass fiber reinforced epoxy-zinc oxide (EGZ) nanocomposites. The inclusion of hard ceramic zinc oxide...

In this article, the influence of varying the weight percentage of glass fiber on the water uptake, tensile and flexural strengths of glass fiber-polyester composites are evaluated. The composites are fabricated by hand lay-up process and further subjected to water immersion for a varied time period (between 0 and 180 days) at ambient temperature....

This study aims at investigating the effect of water ageing on the durability of cellulose fibre reinforced polymer layered silicate nanocomposite. The material used comprises cellulose fibres from pinewood as reinforcement and high-density polyethene (HDPE) coupled with nanoclay as matrix phase. The prepared material is subjected to tap water agei...

The present work aims at assessing the delamination damage occurring in a hybrid composite material during the drilling process. The hybrid composite selected for work comprises of basalt and carbon fibers as reinforcements and epoxy as the matrix. Process parameters quantified by speed, feed, and drill size are the selected input independent varia...

Rubber parts find a wide range of applications in several industrial sectors. Machining of rubber to produce final parts is preferred over using the conventional molding methods for the economic advantage of prior. Because of the complexity in the machining of rubber, not much experimental research has been documented in this area. The present work...

The article aims at the optimization of the speed, feed and composite laminate thickness of glass fiber reinforced polyester composites. The composite studied is made up of isophthalic polyester resin and chopped E-glass fiber, which is primarily made use in marine applications. The drilling experiments are conducted using the HSS tool of 10 mm dia...

Natural fiber reinforced polymer composites have proved to be fit for use in several structural and functional applications. Jute fiber reinforced epoxy composites are one of the most preferred natural fiber-based polymer composites. The emerging need for high strength application while considering environmental sustainability and with the advent o...

Medical issues related to musculoskeletal disorders are the vital contributors towards absenteeism in the modern scenario. Ergonomics is a field that deals with the overall planning of a task to make it suitable for the working personnel while reducing the injuries, particularly the MSDs, and improving productivity. The present work focuses on inve...

This study investigates the thermal property of fused quartz-reinforced aluminum 6061 alloy metal matrix composites for three different chill material conditions. Temperature and reinforcement composition were the independent variables used in experimental analysis. Thermal expansion and conductivity were considered the dependent variables. Central...

The article focuses on investigating the effect of operational parameters like feed and speed along with the composite material thickness on the damages caused in the glass fibre reinforced polymer (GFRP) composites during the drilling process. The GFRP composite studied in the presented work comprises E-glass fibre as the reinforcing material and...

https://authors.elsevier.com/a/1aq~z6gcL71gaD

Development of vehicles with the highest safety standards and lowest carbon emissions has been one of the primary goals of the automobile manufacturers. One of the methods of achieving higher fuel efficiency is by reducing vehicle weight by minimizing the unsprung weight without compromising strength and driver comfort. The study presents the behav...

Tire treadwear is a familiar problem found in tires. There are several factors that affect the treadwears in tires like tire geometry, operating conditions, tire materials, etc. The current work aims at investigating the effect of three operating condition variables viz., inflation pressure (30-36 psi), speed (20-60 kmph) and distance (100-300 km)...

Glass fiber reinforced polymer (GFRP) composites are used in various applications across several industrial sectors. Drilling operation is an unavoidable machining process in the assembly zone dealing with GFRP composites as the composite structures are joined mainly through the fastening processes. GFRP drilling poses several issues compared to co...

Composites are the engineering materials, comprising two constituents: reinforcing and the matrix or binder material. the composite machining, particularly, drilling is a complex process in comparison to the machining of traditionally employed engineering structural materials. Delamination is the most prevalent integrity issue in composite drilling...

Machining is one of the most common subtraction manufacturing process, wherein the final shape of the product is obtained by removing of excess material from the work part. The rising demand for high performance structural material necessitated the development of composite materials and like any other engineering material, to be a part of final ass...

Lean manufacturing tools and techniques acts as a major industrial management driver in the modern world since they attracted the industrialist at an early period in its raw form. Value stream mapping is a lean tool that helps not only to identify the issues hindering the productivity in an industry but also helps to decide upon the right lean tool...

Finite element methods solve complicated computational problems, which requires optimized input data to obtain a converged solution to the problem and arrive at accurate results from simulations. However, the calculations obtained by interpolations of derivatives at the nodes result in mesh discretization error. It is observed that the increase in...

The rapid growth in the automobile industry and the need to develop and roll out the new products, demands for new technologies to reduce the product development cycle. The numerical computation of component stresses is considered to be state of-the-art industrial engineering practice and durability is a major bottleneck in today’s automobile body...

Natural fiber composite (NFC) materials are those composites, which uses cellulose fiber as the reinforcing fiber material. Abundant research is in process to determine the physical and mechanical properties of NFC materials and this paper concentrates on investigating the effect of hygrothermal ageing on the hardness and drilling time of a commerc...

Lean manufacturing tools and techniques acts as a major industrial management driver in the modern world since they attracted the industrialist at an early period in its raw form. Value stream mapping is a lean tool that helps not only to identify the issues hindering the productivity in an industry but also helps to decide upon the right lean tool...

Disc brake rotor was proved to have better heat dissipation performance than drum brake as more exposed surfaces had provided to improve the heat transfer. However, overheated surfaces that caused brake fade was still a possibility. In this research, three ventilation parameters of disc brake rotor (number of rotor holes, number of slots and diamet...

Composite materials are materials made from two or more constituent materials with significantly different physical or chemical properties, that when combined, produce a material with characteristics different from the individual components. Materials made from two or more constituent materials with significantly different physical or chemical...

Railways are the major means of transportation. One of the commitments of the railways is to provide safe train services to passengers and ensure adequate passenger amenities in trains and at railway stations, which includes provision of clean and hygienic surroundings both at trains and in stations. Stagnation of waste on tracks is common, near st...

This review paper concentrates on the impact of industrial effluents on India, supported by CPCB data and other facts. Water is an important element for the survival of any living being. It is one of the element that makes our mother earth unique from all other planets in the universe. The resource has been taken for granted and is being polluted t...

The purpose of this work is to implement the lean manufacturing tools in Lamina Suspension Products Ltd. - an Indian manufacturing sector and develop a plan for reducing leadtimes and increasing the output. The increase in lead-times due to undefined batch size and poor product flow is causing the manufacturer a loss in market share to its competit...

This paper deals with the summary of the literature reviewed for the purpose of the doctoral research on the investigation of lean tools to enhance productivity in manufacturing sector. The review shows that the implementation of lean manufacturing techniques promises to enhance the productivity and Value Stream Mapping is a must-to-be-used tool to...

Geared Hydro-Power Private Limited (GHPL) has been serving a wide spectrum of Indian hydraulic industries for the past decade and a half. With a strong presence in the domestic market, GHPL has now moved on to compete in the International market in line with its vision to move ahead with continual improvement in its product quality maintaining its...

"Change is constant", is the phrase today most of the industries believe in and act upon. Industries today are trying to be flexible enough towards the fluctuating demands. Out of several countries participating in this business race, India is an emerging but prime competitor. The industries have observed that just by increasing the productivity by...