PIYUSH PRAGJIBHAI GOHIL

The Maharaja Sayajirao University of Baroda | MSU · Department of Mechanical Engineering

The mathematical modeling and experimental investigations are carried out to evaluate the tensile properties of unidirectional flax/polyester composites in the present study. For this purpose, the fabrication of flax reinforced polyester composites is carried out using mould and punch setup and following the hand layup technique. The longitudinal a...

Additive manufacturing is an advanced layer-based manufacturing process that fabricates customized prosthesis and orthosis to patient requirements directly from computer aided design data without using part depending tools. In this article, basic information on the elements, materials, and methodology of prosthesis and orthosis is described. Now a...

Vacuum assisted resin transfer molding (VARTM) is a fiber reinforced composite (FRC) making process in which resin is impregnated to fabric by application of vacuum. This process is also known as vacuum infusion process. The critical issue in VARTM process is void generation. Voids form due to variety of reasons, most of which can be avoided. Vacuu...

Design and development of thermo-structural products capable of withstanding the stringent flight condition is a major task. Design, assembly and handling process of the commercial camera which is used into the market is very difficult. The present work gives an insight into the total process of the development and testing of the lightweight camera...

The influence of interphase on the tensile property of composite is examined in the present study. For this, fabrication of composite (FOC) is carried out using natural fibers: bamboo fiber and jute fiber and polyester resin as per the hand layup technique. The fibers are arranged in a longitudinal direction with varying the volume fraction of fibe...

The inevitability of ordinary fiber reinforced materials is emergent at a precise speedy rate in line for the purpose of their defensible construction, dissolution, high specific strength, fruitfulness and earnest physical and mechanical properties. From the present work, it is clearly visible that in the past lot of underpinning and classification...

Composite Material which are different from common heterogeneous materials come to the forefront of manufacturing a few decades ago because of their superior specific mechanical properties. The reduction of the non-renewable resources and increment in environmental pollution inspired investigators to emphasis on the improvement of environment frien...

Vacuum assisted resin transfer moulding (VARTM) has become well known fibre reinforced composite (FRC) manufacturing technique for various applications like boat hull, automobile parts, wind blades, aircraft parts etc. As name suggests, vacuum is used to assist resin to flow inside fabric during impregnation. The flow of resin happens due to the pr...

Natural Fiber (NF) becomes a vital part of the various industries such as textile, automotive, packaging, construction, etc. nowadays. This is a review of the chemical composition and mechanical properties of a wide variety of NFs including abaca fiber, bagasse fiber, bamboo fiber, banana fiber, coconut fiber, coir fiber, cotton fiber, flax fiber,...

This paper reviews how the Additive Manufacturing (AM) industry played a key role in stopping the spread of the Coronavirus by providing customized parts on-demand quickly and locally, reducing waste and eliminating the need for an extensive manufacturer. The AM technology uses digital files for the production of crucial medical parts, which has be...

The world is changing its demand regularly for replacing the material used in any developed product to make it more robust and users friendly. Single natural fibre or single synthetic fibre used as a reinforcement in composites offer some issues like less durability, less mechanical strength, and high cost. These demerits can be eliminated by using...

Fibers are the main load-carrying member in composites. Hence, it is required to examine the behavior of fiber against different strain rate (SR). In present study, the behavior of natural fiber (NF) and Natural fiber yarn (NFY) is investigated by varying the SR at lower SR: 0.17 × 10⁻⁴ s⁻¹ to 1.25 × 10⁻⁴ s⁻¹ (crosshead speed (CHS): 0.1 to 0.75 mm/...

The primary factor that defines the final performance of any composite material is the fiber-matrix interface. Hence, efficient amount of adhesion is needed for full-fledged performance of composite materials. When fibers are used without surface modification, they tend to produce composites with low strength. This in turn leads to weak adhesion an...

In the present study, the experimental investigations are carried out to find the tensile strength (TS) and flexural strength (FS) of unidirectional composites (UDC). For these, fabrication of composite (FOC) is carried out using hand layup technique by selecting fibers: bamboo fiber, cotton fiber and viscose rayon fiber as a reinforcement and poly...

As the fiber reinforced polymer matrix composites gives good strength and can work in rigorous environmental conditions, nowadays more focus is given to study the behavior of these materials under different operating conditions. Due to the environmental concern focus on the natural fiber reinforced polymer matrix composite (NFRPC) is enhancing both...

The natural fiber reinforced composites are emerging as a potential replacement to synthetic fiber composite for lowering down the cost of applications and they are used in interior of automobile, chassis of cellular phone, building construction, etc. Drilling operation is the most important machining process for assembly of different components. D...

The Cotton fiber reinforced composites with different weight percentage of SiC filler was manufactured by using Hand Lay up manufacturing processes. To condense the total testing in a systematic manner response surface design approach was used and the wear data were collected from a pin on disc wear tester. The result of the different weight concen...

The Cotton fiber reinforced polymer matrix composites (CFPCs) have been fabricated with varying amount of Fly ash particles fillers viz., 0, 3, 5 % with hand lay up technique. The effect of fly ash content on wear behavior of CFPCs has been investigated at different operating parameters like loads (viz. 20 N, 30N, 40 N), speeds (viz. 500 RPM, 750 R...

In recent years, Aluminium Matrix Composites (AMCs) are becoming attractive in fields of structural, tribological, electrical and electronics engineering because they offer advantages such as high strength to weight ratio, good tribological performance etc. In this work, AMCs were developed using electromagnetic stir casting (EMSC) process by reinf...

In present study, an experimental investigation is carried out to measure the effect of strain rate on tensile strength of natural fiber composites. For this, fabrication of natural fiber composites is carried out with hand layup technique. Banana fiber, flax fiber and bamboo fiber are used as a reinforcement and polyester resin is used as a matrix...

In present study, an experimental investigation is carried out to evaluate flexural properties of longitudinally and transversely placed fiber reinforced polymeric composites. For this purpose, fabrication of composites is carried out by using mould and punch setup and following hand layup technique. Natural fiber yarn: bamboo fiber yarn, jute fibe...

The present study aimed to examine the influence of tool geometry, spindle speed and feed on thrust force (TF) and delamination in hybrid hemp-glass composites. The pure glass polyester, pure hemp polyester and hybrid hemp/glass polyester composite specimens were prepared using hand layup technique. The drilling experiments were performed according...

The machinability of fiber reinforced composites is emphatically affected not only by the kind of fiber used in the composite but also by its properties. Milling composite materials is a very usual and plays a vital role for the assembly of composite structures. However, milling of composites is a somewhat complicated errand inferable from the hete...

Composite materials play a vital role in many industrial applications. Researchers are working on fabrication of new composite materials worldwide to enhance the applicability of these materials. The present study aimed to investigate the effect of Nano clay loading as filler on the mechanical properties of the bamboo fiber yarn reinforced polyeste...

The cotton fiber reinforced polyester composites were fabricated with varying amount of graphite fillers (0, 3, 5 wt.%) with a hand lay-up technique. Wear tests were planned by using a response surface (Box Behnken method) design of experiments and conducted on a pin-on-disc machine (POD) test setup. The effect of the weight percentage of graphite...

This paper presents a research review on fabrication processes and mechanical characterization of aluminum matrix composites (AMCs), which have found application in structural, electrical, thermal, tribological, and environmental fields. A comprehensive literature review is carried out on various types of fabrication processes, the effects of indiv...

Aluminum metal matrix composites have found applications in manufacturing of various components such as piston, cylinder block, and brake drum, in which wear and friction are important phenomenon. This paper presents an overview of diversified reinforcement on aluminum metal matrix composites in terms of tribological aspects. A comprehensive litera...

The advancement of polymer composites containing natural fibers as a manageable option material for certain designing applications, especially aviation and car applications, is a well-known area of investigation. Nevertheless, the high mechanical properties connected with synthetic fibers they are awesome and lavish contrasted with natural fibers....

High speed machining is a key method to increase the productivity and reduce the cost during manufacturing. Delamination is a prevalent disadvantage while drilling of composites. Full factorial design (FFD) was used to evaluate delamination factor (DF) by studying process parameters. DF was evaluated with an influence of process parameter during th...

The use of fiber reinforced polymer matrix composites (FRPCs) is in boom in many structural, industrial, automotive, and engineering applications. Polymer matrix composites have been turned out the most hopeful material which can replace the conventional materials, metals, and woods. Owing to this the demand for analyzing the tribological behavior...

Cotton fiber composites are currently used in the interior parts of automobiles, insulation boards, fiber boards, and various parts of high-friction mechanical assemblies. These composites are subjected to machining operations. Drilling is an indispensable machining operation for assembly of different parts. The present work aimed to carry out expe...

The majority of the mounting countries are extremely rich in agricultural biomass such as natural fiber. Apart from a few exceptions, a huge part of agricultural biomass wastes is used as a substitute for different applications. India only produces more than 400 million tonnes of agricultural dissipate yearly. A huge fraction of agricultural biomas...

Fibers are best suitable material as reinforcement, which increases properties of the emerging composite materials. The use of high strength fiber leads to new advanced composites which can be used for great strength applications. Yet, the use of medium and low strength fibers available in nature are also consuming sufficient potential for various...

This chapter starts with the importance of composite materials over single-phase materials and further explores the importance of natural fiber reinforced composites over synthetic fiber reinforced composites followed by chemical and physical modifications of the fiber surface to enhance the adhesion between the fiber and the matrix. The chapter al...

The attention in natural fibre-reinforced polymer composites is growing rapidly for many engineering systems. However, their assorted nature, engineer’s lack of experience, a little knowledge of machinability databases, parameter setting and difficulty in manufacturing are barriers to large-scale use of composites. Various conventional and unconven...

Polymer composites are well known for offering high strength-to-weight ratios and flexibility in material design. Physical properties of a composite can be satisfied various functional requirements of a target application, including stiffness and strength, thermal and electrical transport, and wear resistance. Composites are designed to fulfill sev...

Fibers and fibrous materials are not isotropic and, therefore, posseses diverse mechanical properties in different directions, there is no specific strength, value to represent their mechanical properties. It is important to define the fibers and fibrous materials with its reliability based mechanical properties for the design of parts. In present...

This paper presents an overview of laser beam machining and researches carried out so far in the area of laser cutting of polymer matrix composites. Composite materials are highly promising materials for applications in the aeronautic, aerospace, automotive and marine industry, but their properties like brittleness, anisotropy and non-homogeneity m...

Composites are becoming essential part of today’s material because they offer advantages such as low weight, corrosion resistance, high fatigue strength; faster assembly etc. composites are generating curiosity and interest all over the worlds. The attempts can be found in literature for composite materials high strength fiber and also natural fibe...

Development of composite materials requires reinforcement and matrix in which fiber is finest suitable material for reinforcement which improves properties of materials. The use of high strength fiber leads to birth of advanced composites, which are mainly used, for high strength application or aerospace application. However, the use of medium stre...

During a vehicle development program, load data representing severe customer usage is required. The dilemma faced by a design engineer during the design process is that during the initial stage, only predicted loads estimated from historical targets are available, whereas the actual loads are available only at the fag end of the process. At the sam...

The loading of composite in the perpendicular direction to that of the principal axis of fiber is a case of transverse loading where the adhesion between fiber-matrix plays a crucial role. A most influential parameter for composite behavior in this case is the contemplation of interphase of the two main phases. The present work contains mathematica...

The present work examines different types of natural fiber available for the development of potential composite materials. The attempts can be found in literature to obtain composite materials with jute, flax and sisal natural fibers. They provide data but lack experimentation for obtaining unidirectional natural fiber composites with seldom natura...

Three-roller bending aimed at plastic bending of plates into cylinder. Accurate prediction of springback is important for controlling product dimensions. Due to inconsistency in springback, online tool for controlling the final product dimensions are more reliable. Presented work discusses the development of artificial neural network for prediction...

The paper reviews the performance test on multi cylinder engine using petrol and CNG as a fuel under variable load and speed conditions, which covers the performance parameters like fuel economy, specific fuel consumption, thermal efficiencies, effect of some operating parameters like exhaust gas temperature and engine friction etc. Finally, the co...