Dr Hanamantraygouda M B
@sirmvit.edu
Department of Mechanical Engineering
Sir M Visvesvaraya Institute of
Technology, Bengaluru
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Sri Sai P. Reddy, Rohan. Suresh, Hanamantraygouda. M.B., and B.P. Shivakumar
Elsevier BV
Abstract A brief overview of the materials used in wind turbine blades is presented in the following. Wind power is one of the biggest sources of natural energy which is tapped by installing windmills in open areas of land, usually far from metropolitan areas. The biggest task involved in this, is achieving maximum efficiency with minimal cost. One way this can be achieved is by replacing the medieval wind turbine blades with hybrid composite material blades. The main advantage of this is balanced strength and stiffness. Wind turbine blades are manufactured according to certain pre-made mathematical calculations and are placed accordingly so that the blades rotate in a determined direction. The turbine blades are manufactured in different ways, some of which have been discussed further in this paper. The use of new materials such as nano-powders and hybrid fibers revolutionize the current manufacturing processes and throw open the doors to new opportunities, those which involve higher efficiencies, lower environmental impact, lesser wear, etc. Details of such materials and their properties have been discussed in this paper.
Sadanand Sarapure, B. P. Shivakumar, and M. B. Hanamantraygouda
Springer Science and Business Media LLC
In the present work, the statistical investigation on corrosion behaviour of Silicon Carbide-reinforced Al6061 Aluminium metal matrix (AMMCs) composites using Taguchi technique has been reported. Stir casting technique was adopted for synthesizing Al/SiC composites containing 0%, 2%, and 4% weight percentages of SiC. The corrosion studies were carried out for test variables—wt% of SiC, normality of solution, and corrosion duration for the as-cast composite specimens. The specimens were tested in NaCl solutions of normality 1.0, 1.5, and 2 and the exposure period ranging from 40 to 80 days. Corrosion characteristics of the composites were statistically analyzed by employing the design of experiments approach using Taguchi technique. Influence of various parameters on corrosion behavior of composites were investigated by Signal-to-noise ratio and analysis of variance. Result of the research determines that greater corrosion resistance was obtainable by composites when compared to monolithic aluminium 6061 alloy in the chosen corrosion media. This phenomenon of decrease of corrosion rate with exposure time was attributed to possible passivation of matrix alloy with the formation of protective layer formed on the specimen exposed to NaCl protecting the base metal from aggressive environment. The corrosion morphology was studied by scanning electron microscopy (SEM).
B.M. Girish, B.P. Shivakumar, M.B. Hanamantraygouda, and B.M. Satish
Informa UK Limited
The present work aims to investigate the effect of hot forging on the wear behaviour of aluminium alloy 6061 reinforced with silicon carbide (SiC) particles of size 25 to 30 µm. Forging of the spec...
B. P. Shivakumar, M. B. Hanamantraygouda, L. Prashanth, K. B. Yogesha, P. Siddappa, and M. Mrityunjaya
Springer International Publishing
The objective of the present work is to investigate the effect of forging on the wear behaviour of Al-SiC Metal Matrix Composite at different weight percent of SiC particles. The Al-SiC composite material is fabricated by stir casting technique at 2, 4 and 6% of weight fractions of reinforcement and the casted composites were forged for different reduction ratios of 20%, 40% and 60%. Wear tests were conducted at a constant disc rotational speed of 800 rpm for 30N, 40N and 50N load and sliding distances of 1000 m, 1500 m and 2000 m. The worn out surfaces of the composite were analyzed using optical microscope. The wear rate of the forged composite showed lower values compared to the unforged composite. Increased wt. % of SiC particles in the matrix alloy enhances the wear resistance of the composite. It is also found that, wear rate is increased with the increase of load and wear track distance for all the cases.
B. P. Shivakumar, M. B. Hanamantraygouda, L. Prashanth, K. B. Yogesha, P. Siddappa, and M. Mrityunjaya
Springer International Publishing
The objective of the present work is to investigate the effect of forging on the wear behaviour of Al-SiC Metal Matrix Composite at different weight percent of SiC particles. The Al-SiC composite material is fabricated by stir casting technique at 2, 4 and 6% of weight fractions of reinforcement and the casted composites were forged for different reduction ratios of 20%, 40% and 60%. Wear tests were conducted at a constant disc rotational speed of 800 rpm for 30N, 40N and 50N load and sliding distances of 1000 m, 1500 m and 2000 m. The worn out surfaces of the composite were analyzed using optical microscope. The wear rate of the forged composite showed lower values compared to the unforged composite. Increased wt. % of SiC particles in the matrix alloy enhances the wear resistance of the composite. It is also found that, wear rate is increased with the increase of load and wear track distance for all the cases.
M B Hanamantraygouda, B P Shivakumar, P N Siddappa, L Sampathkumar, and L Prashanth
IOP Publishing
The objective of this work was to investigate the effect of cold forging on mechanical properties and microstructural study of Al MMCs, at different wt% of SiC and forging cycle. The Al-SiC composite material was fabricated by stir casting method at different weight percentage of SiC such as 2.5, 5, 7.5 and 10%. Further, the deformation characteristics during open-die forging of Al-SiC composite at cold conditions was investigated. Cast and forged composite material was subjected to hardness test, tensile test and impact test. The grain size, microstructure behaviour was investigated using optical microscope. The results show that hardness and strength of Al-SiC composite increases and ductility decreases as compared to Al alloy in both as-cast and forged conditions. Optical microscope images showed that the distribution of SiC in Al matrix was more homogeneous in a forged composite as compared to cast one and reduction of porosity was found. Further, it showed that due to forging cycle the grain size was reduced by 30% to 35% from initial size.
P. N. Siddappa, B. P. Shivakumar, K. B. Yogesha, M. Mruthunjaya, and M. B. Hanamantraygouda
EDP Sciences