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Geetanjali S. Guggari

Bio: Geetanjali S. Guggari is an academic researcher from Gogte Institute of Technology. The author has contributed to research in topics: Ultimate tensile strength & Glass transition. The author has an hindex of 1, co-authored 2 publications receiving 4 citations.

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01 Feb 2021
TL;DR: In this paper, the authors used the technique used for the fabrication of GFRP-ABS laminateis compression molding, as per the ASTM standard, and various tests are conducted as per Design of Experiments.
Abstract: Now a day’s many companies manufacturing the most advanced submersible pumps with Acrylonitrile Butadiene Styrene (ABS) based polymer, which is available in the market for use in domestic, commercial and even research activities. ABS based pumps are widely used in mining, construction and chemical industries. Acrylonitrile Butadiene Styrenehasmuch application in the temperature range from -20 to 80°C. The ABS based polymer composites are used in submergible pumps due their important properties such as corrosion resistance, light weight, erosion resistance, etc. In the current work, the technique used for the fabrication of GFRP- ABS laminateis compression molding, as per the ASTM standard. The various tests are conducted as per Design of Experiments. Analysis of experimental data was performed using Minitab software and tests were conducted for Flexural strength, Inter Laminar Shear Stress, Tensile strength. Three factors areconsidered for the Design of Experiments namely, fibre-to-resin ratio, fibre orientation and period of immersion in artificial sea water. The outcomepoints towards Flexural strength; ILSS and Tensile Strength areat highest along 40:60 fibre-to-resin ratio with 0°/90°fiber orientation, longer the contact to sea water more is the fall in the strength of the composite material and also due to sea water diffusing into the composite material specimen, there is an increase in its weight.

4 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigate both thermal and mechanical properties of vinyl ester/glass composites incorporated with different percentages of carbon black reinforcements through experimental approaches, and reveal that 4% of carbon with vinyl esters improved the tensile strength by 30%, hardness by 35, flexural strength by 45, flexuric modulus by 66, and interlaminate shear strength by 44%.
Abstract: The objective of the work is to investigate both thermal and mechanical properties of vinyl ester/glass composites incorporated with different percentages of carbon black reinforcements through experimental approaches. Analysis of glass transition temperature, thermogravimetric analysis (TGA), degradation temperature, hardness, flexural strength, etc. is performed using differential scanning calorimeter, X-ray diffraction, tensile machine, and flexural machine, respectively. The scanning electron microscope was used for surface fracture studies. The degradation temperature reduces initially with the percentage of carbon black and then increases. Glass transition temperature increases with the percentage of carbon black while above 500°C temperature, the weight percentage of composite drops. The results also reveal that 4% of carbon with vinyl ester improved the tensile strength by 30%, hardness by 35%, flexural strength by 45%, flexural modulus by 66%, and interlaminate shear strength by 44% when compared with the other percentage of carbon black.

1 citations


Cited by
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Journal ArticleDOI
TL;DR: In this paper, the level of process parameters for the friction stir welding of AA8006 to reduce the variability by the trial-and-error experimental method, thereby reducing the number of samples needing to be characterized to optimize the process parameters.
Abstract: A lightweight, highly corrosive resistant, and high-strength wrought alloy in the aluminum family is the Aluminium 8006 alloy. The AA8006 alloy can be formed, welded, and adhesively bonded. However, the recommended welding methods such as laser, TIG (Tungsten Inert Gas welding), and ultrasonic are more costly. This investigation aims to reduce the cost of welding without compromising joint quality by means of friction stir welding. The aluminum alloy-friendly reinforcement agent zirconia is utilized as particles during the weld to improve the performance of the newly identified material AA8006 alloy in friction stir welding (FSW). The objectives of this research are to identify the level of process parameters for the friction stir welding of AA8006 to reduce the variability by the trial-and-error experimental method, thereby reducing the number of samples needing to be characterized to optimize the process parameters. To enhance the quality of the weld, the friction stir processing concept will be adapted with zirconia reinforcement during welding. The friction stir-processed samples were investigated regarding their mechanical properties such as tensile strength and Vickers microhardness. The welded samples were included in the corrosion testing to ensure that no foreign corrosive elements were included during the welding. The quality of the weld was investigated in terms of its surface morphology, including aspects such as the dispersion of reinforced particles on the welded area, the incorporation of foreign elements during the weld, micro defects or damage, and other notable changes through scanning electron microscopy analysis. The process of 3D profilometry was employed to perform optical microscopy investigation on the specimens inspected to ensure their surface quality and finish. Based on the outcomes, the optimal process parameters are suggested. Future directions for further investigation are highlighted.

38 citations

Journal ArticleDOI
TL;DR: In this article, the effect of machining parameters on the thrust force, torque and burr height while drilling Al 2618, Al2618 with 10% boron carbide (B4C) and 5% graphite (Gr) hybrid composites is addressed.

8 citations

Journal ArticleDOI
TL;DR: In this paper, the effects of ceramics on Al2219 versus un-reinforced Al 2219 alloy were explored and an Artificial Neural Network (ANN) predictive outcome fit to actual measured data and absolute relative error was used to predict the wear properties of the composite.

5 citations

Journal ArticleDOI
TL;DR: The morphology and scratch phases of Ni-nano-Al2O3 nano-composite coatings in a nickel-plated bath have been prepared through the traditional electrodeposition process on the Al-2219 substrate as discussed by the authors.

1 citations

Journal ArticleDOI
TL;DR: In this paper , a metal matrix composite is made up of a cast Al-Si-Mg alloy (LM25) matrix with two variants of particle reinforcements, first one with 3 wt% TiB2 and 2w% CoCrFeMnNi high entropy alloy (HEA) and the other as 2 wt%, TiB 2 and 3wt%, CoCr FeMnni (HEa) were used.