iosr-JMCE   Volume-16 ~ Issue-6 ~ Nov.-Dec.2019

Abstract: Drilling plays significant role in machining. More than 40% of material removal operations are related with this kind of action. Usually high temperature is generated during drilling operation. Therefore, the drilling tool becomes dull and leads to a limited service life. The chips clung to the exit of a penetrated opening decimation the surface quality and weakens drilling exactness. To eliminate this difficulty form drilling established. Form drilling, also known as "thermal drilling", "flow drilling", "friction drilling", or "friction stir drilling", is the best result to the above-mentioned difficulty. Form drilling is a non-traditional hole making operation. A rotating conical tool is implemented to penetrate a hole and create a bushing in one step without initiating chip. The form drilling process.....

Key words: Bushing, Form Drilling, Temperature

[1]. G. Somasundaram, S. Rajendra Boopathy and K. Palanikumar, Modelling and analysis of roundness error in friction drilling of aluminum silicon carbide metal matrix composite, Journal of Composite Materials, 2011, 169-181.
[2]. G. Somasundaram, S. Rajendra Boopathy, Fabrication and Friction drilling of Aluminium Silicon Carbide Metal Matrix Composites, IEEE Journal, 2010.
[3]. Dr. A. Gopichand, M. VeeraBrahmam, D. Bhanuprakash, Numerical Simulation and Analysis of Friction drilling Process for Alumina Alloy using Ansys, International Journal of Engineering Research & Technology (IJERT), 3(2), 2014.
[4]. Diwakar Reddy.V, Krishnaiah.G, Gopi Chand and Indumathi, Analysis in Form Drilling AA1100 Using HSS Tools, International Conference on Trends in Mechanical and Industrial Engineering (ICTMIE), 2011.
[5]. P. V. Gopal Krishna1, K. Kishore1 and V. V. Satyanarayana, Some Investigation in Friction Drilling AA6351 Using High Speed Steel Tools, ARPN Journal of Engineering and Applied Sciences, 5(3), 2010..

Abstract: This study assessed the effects of elevated temperature on the compressive strength of concrete to determine the strength of concrete after fire outbreak. Two assessments were done which include; using laboratory experimental tests and using a mathematical model. The concrete grade of 25N/mm2 with design mix of 1:1.5:3 and w/c of 0.56 were used. A total of 21 concrete cubes (150mm x 150mm x150mm) were cast. After 24hrs, the cubes were de-moulded and cured in water at ambient temperature in the laboratory for 28 days. At 28 days age, the cubes were removed from the curing tank and air-dried for 2hrs before being subjected to these sustained elevated temperatures: 28oC, 50oC, 100oC, 150oC, 200oC, 300oC and 400oC for 1 hour. Thereafter their compressive strengths were determined. A Non-linear regression model was developed to predict the compressive strength of the cubic concrete specimen after oven heating. The model adequately predicted the compressive strength of concrete at given temperatures and weight after oven heating with a correlation coefficient of 0.81.

Key words: Concrete, Temperature, Compressive strength, Non-Linear Model,

[1]. CCAA, Concrete Basics: A Guide to Concrete Practice, A Publication of Cement Concrete and Aggregate Australia, 2004, 6th edition. www.concrete.net.au, retrieved 15th April 2010.
[2]. Kodur Venkatesh, Properties of Concrete at Elevated Temperatures, ISRN Civil Engineering, Volume 2014.
[3]. Ugwu J.N and Enem J.I, Elevated Temperature Influence on Concrete Compressive Strength, www.gsj-pub.com, Global Scientific Journal of Civil Engineering 1, 2018, pp 11-15.
[4]. Morsy M.M, Shebl S.S, and Rashad A.M, Effect of Fire on Microstructure and Mechanical Properties of Blended Cement Pastes Containing Metakaoline and Silica Fume. Asian Journal of Civil Engineering (Building and Housing), 9(2), 2008, PP 93-105.
[5]. CAN/CSA (2002) A23-3-04 (2002), Design of Concrete Structures, Canadian Standards Association (CSA), Rexdale ON, Canada..

Abstract: One of the most important kind of material used in engineering field is Titanium. Ti-6Al-4V alloy accounts for approximately 50% of the total world production of titanium alloys. This is due to their different properties like high strength to weight ratio, superior corrosion resistance and ability to withstand high temperature.They are known as "difficult to machine" materials because of their poor thermal property and poor machinability. The cryogenic-treatment is a method to change material properties. It can improve the plasticity of Ti-6Al-4V alloy but along with it reduces the strength to small extent.High-speed machining of the cryo-treated titanium and its alloys which is a highly reactive material is still far away uncertain. So, it is important to study the machining characteristics and optimization of the cutting parameters. In this paper Titanium alloy (Ti-6Al-4V....

Key words: Titanium alloy, Cryogenic treatment, Coated Carbide insert, Taguchi Design, Surface Roughness, Cutting Force, ANOVA, Tool Wear, Scanning Electron Microscope (SEM).

[1]. Dry Machining of Ti-6Al-4V using PVD Coated TiAlN Tools NarasimhuluAndriya,Member, IAENG, P Venkateswara Rao, and Sudarsan Ghosh, July 4 - 6, 2012.
[2]. Yang X, Liu C R 1999. Machining Titanium and its Alloys, Machining Science Technology. 3(1): 107-139.
[3]. Venugopal K, Paul S, Chattopadhyay A. 2007. Tool Wear in Cryogenic Turning of Ti-6Al-4V. Cryogenics. 47(1): 12-18.
[4]. Optimization of Surface Roughness of Ti-6Al-4V Titanium Alloy Using Taguchi Technique, B. Prashanth, J. Krishnaraj 7, July 2017.
[5]. The influence of cutting parameters in machining of Ti alloy, J. Nithyanandam, Sushil Lal Das and K. Palanikumar, April 2015..

Abstract: World's most consumed construction material is concrete made up of cement, aggregates, water and additives as it is found to be more versatile, durable and reliable. Concrete is the second most consumed material after water, which required large quantities of Portland cement. The manufacturing process of Ordinary Portland Cement (OPC) results in destruction of the environment due to the emission of CO2 as well mining also results in unrecoverable loss to nature. The amount of carbon emissions is increasing on an alarming scale and hence, it is required to find an alternative material to the existing expensive cement-concrete. Geopolymer concrete is an alternative construction material which is produced by the chemical action of inorganic molecules. Fly Ash....

Key words: geopolymer concrete, fly ash, GGBFS, alkaline solutions

[1]. Abdullah, M. M. A. B., Faris, M. A., Tahir, M. F. M., Kadir, A. A., Sandu, A. V., Isa, N. M., &Corbu, O. (2017, June). Performance and Characterization of Geopolymer Concrete Reinforced with Short Steel Fiber. In IOP Conference Series: Materials Science and Engineering (Vol. 209, No. 1, p. 012038). IOP Publishing.
[2]. Khan, K. A., Raut, A., Chandrudu, C. R., &Sashidhar, C. (2019). MECHANICAL AND WATER TRANSPORT PERFORMANCE OF SUSTAINABLE GEOPOLYMER COMPOSITE USING BINARY BLENDS OF POZZOLANIC MATERIALS. JurnalTeknologi, 81(5).
[3]. Hardjito, D., Wallah, S. E., Sumajouw, D. M., &Rangan, B. V. (2004). On the development of fly ash-based geopolymer concrete. Materials Journal, 101(6), 467-472.
[4]. Elchalakani, M., Dong, M., Karrech, A., Li, G., Mohamed Ali, M. S., Xie, T., & Yang, B. (2018). Development of Fly Ash-and Slag-Based Geopolymer Concrete with Calcium Carbonate or Microsilica. Journal of Materials in Civil Engineering, 30(12), 04018325.
[5]. Olivia, M., &Nikraz, H. (2011). Strength and Water Penetrability of Fly Ash Geopolymer Conrete. Journal of Engineering and Applied Sciences, 6(7), 70-78.

Abstract: This paper deals with performance and emission charaterstics of palm oil blended biodiesel in different proportion as fuel for four stroke single cylinder CI engine. The engine performance parameter like specific fuel consumption and brake thermal efficiency were investigated. Also engine emissions of CO2, CO, HC and NOx were analyzed and discussed. All experiments were carried out for different proportion biodiesel that was P0, P10, P20, P30 and P40 at various brake power. The results reveals that brake thermal efficiency and specific fuel consumption for P10 blend is comparatively equal to diesel fuel. Maximum brake thermal efficiency of 35.42% was achieved for P10 blend. It was observed that higher CO2, CO, HC and NOx produced all biodiesel blends as compared to diesel fuel. This might be due to the higher oxygen content in the biodiesel structure and also higher exhaust temperature during combustion which promotes the formation of more hazardous gas. Furthermore, P10 blend emissions are slightly higher than diesel

[1]. Monyem A., Gerpen J.H.V. "Biomass and Bioenergy", Volume 20, pp. 317–325, 2001
[2]. Tormos B., Novella R., Garcia A., Gargar K. "Renewable Energy", Volume 35, pp. 368–378 2010
[3]. Nurun Md., Rahman Md., Akhter Md., "Applied Thermal Engineering", Volume 29, pp. 2265 -2270, 2009
[4]. Lapuerta M., Armas O., Fernandez F., "Progress in Energy and Combustion Science", Volume 34, pp. 198-202, 2011
[5]. Lin CY, Lin CA., "Diesel engine performance and emission characteristics of biodiesel produced by preoxidation process", Fuel, Volume 85, pp. 298-305, 2006.

Abstract: Geotextiles, a recently rising field in the common designing and different fields, offer incredible potential in shifted territories of uses internationally. Geotextiles play a huge part in present day asphalt plan and support systems. The development in their utilization worldwide for transportation applications specifically, has been nothing shy of sensational. Geotextiles are perfect materials for infrastructural works, for example, streets, harbors and numerous others. They have a splendid future, on account of their multifunctional attributes. The paper gives an outline of different characteristic just as engineered material strands utilized for application as geotextiles

Key words: geotextiles, separators, seepage, filtration, support, woven and non-woven textures

[1]. Abdullah, A. B. M., A Hand book of GeotextilesParticularly natural goetextiles from jute andother vegetable fibers, FAO-2000
[2]. ASTM (1994), Annual Books of ASTM Standards, American Society Testing andMaterials, Philadelphia, Pennsylvania. Volume4.08 (1), Soil and Rock, Volume 4. No. (8), Soiland Rock, Geosynthetics, Volume 7, No. 1, Textiles.
[3]. Ayres, D. J., "The Treatment of Unstable Slopes andRailway Track formation", The Journal of theSociety of Engineers, Vol. 52, No. 4 (Oct./Dec),1961.
[4]. Gregory, R. N., Barry, C. R., Geotextiles inTransportation Applications, Featured ShortCourse, 1998.
[5]. Koerner, R. M., Designing with Geosynthetics,Third edition, Prentice Hall, 1993

Abstract: Hybrid nanofluids, two or more nanoparticles in base fluid, has been an increasing interest in modern years due to improvement in heat transfer performance. In the present work, an analysis is carried out
to study the flow characteristics and heat transfer performance on convection in a lid-driven trapezoidal cavity with sinusoidal wavy bottom surface filled with hybrid nanofluid composed of equal quantities of Cu and Al2O3
nanoparticles dispersed in water base fluid. The wavy bottom wall is heated while the top side of the cavity is cooled isothermally and the left and right walls are insulated. All the walls of the cavity are kept as no-slip walls
except the upper one which is a moving wall driven by a uniform velocity 𝑈𝑜 along the 𝑥-axis. The relevant
governing equations have.....

Key words: Hybrid Nanofluid, Finite Element Method, CFD, Cavity, Heat Transfer, Convection.

[1]. J. Sarkar, P. Ghosh, A. Adil, A review on hybrid nanofluids: Recent research, development and applications, Renewable and Sustainable Energy Reviews 43 (2015), pp. 164–177.
[2]. Cruz, J. M. S., Hammond, G. P. and Reis, A. J. P. S., "Thermal performance of a trapezoidal-shaped solar collector/energy store", Applied Energy, vol. 2002, pp. 195-212, 2002.
[3]. Ishrat Zahan and M.A. Alim, MHD effect on solid fluid thermal conductivity ratio and wall thickness in a Nanofluid Filled Enclosure, Journal of Engineering Mathematics & Statistics, Vol. 2 (1) (2018), pp. 1-23.
[4]. S.U.S. Choi, J.A. Eastman, Enhancing thermal conductivity of fluids with nanoparticles, ASME International Mechanical Engineering Congress &Exposition San Francisco, Vol. 231 (1995), pp. 99-105.
[5]. Z.H. Han, B. Yang, S.H. Kim, M.R. Zachariah, Application of hybrid sphere/carbon nanotubeparticles in nanofluids, Nanotechnology 18 (2007) 105701..

Abstract: Autonomous Vehicles "Fully automated vehicles without any human interactions".
Autonomous control software being used to fully robotic control to driving system including steering wheel, braking, blind spots, and traffic signals, etc. when route is incorrect or having any inconvenience based on the previous driving vehicle running at same route observed by autonomous driving computer system. The system will again optimize map and also facilitate to be controlled by passengers (manual driving)

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Abstract: This paper presents an experimental investigation on the behavior of steel-concrete composite edge joints under cyclic loading. Six specimens of edge composite beam-column joints have been tested to study the effect of different types of steel sections connection in the joint zone on the seismic behavior of structure members. The experimental parameters include concrete-encased composite columns with IPE (I) and Pipe (P) steel sections, As well as, concrete-encased composite beams with both built up (T) and (I) sections with equal/unequal flange width. The seismic behavior of edge joints such as failure mode, hysteresis curve, strength degradation, ductility and energy dissipation ability were investigated. Based on experimental results, all composed joints had shear....

Key words: Composite Edge joint ; Steel−Concrete composite edge joint ; Energy dissipation of edge joint ; Ductility of edge joint ; Seismic resistance of joint.

[1]. Y. C. Choi, et al. "Development of a shear strength equation for beam-column connections in reinforced concrete and steel composite system". International Journal of Concrete Structures and Materials, Vol.11: pp.185-197, (2017).
[2]. E. Z. Beydokhty, and H. Shariatmadar. "Behavior of damaged exterior beam-column joints strengthened by CFRP composites". Latin American Journal of Solids and Structures, Vol.13: pp.880-896, (2016).
[3]. H. Khalil, et al. "Investigation on an innovative way to connect RC beam and steel column". International Journal of Civil and Enviromental Engineering, Vol.4: pp.437-443, (2015).
[4]. K. R. Bindhu, P. M. Sukumar, and K. P. Jaya. "Performance of exterior beam-column joints under seismic type loading". ISET Journal of Earthquake Technology, Vol.46 No. 2: pp.47-64, (2009).
[5]. J. L. Pan, and F. YUAN. "Seismic behaviors of ECC/ Concrete composite beam column joints under reversed cyclic loading". VIII International Conference on Fracture Mechanics of concrete and concrete structures: 1-12, (2004)..

Abstract: The threat for survival in consultancy business and diminishing volume of construction jobs/work couple with the few numbers of Quantity Surveyors usually engaged on construction projects. It has become imperative that certain strategic measures and innovations are embarked upon by quantity surveying firms to keep abreast of developmental and professional changes. Therefore, this paperconsidered motivational factors for multiskilling and appraised the challenge of adopting multiskilling strategy by quantity surveying firms in Nigeria.The paper adopted questionnaire survey on two separate population of diversified quantity surveying firms and multiskilled Quantity Surveyors working within diversified quantity surveying firms identified by pilot survey using snowball sampling technique.........

Key words: Challenges, multiskilling, multiskilling strategy, Nigeria, quantity surveying services

[1]. Abrams, C. & Berge, Z. (2010). Workforce Cross-training: A Re-emerging Trend in Tough Times, Journal of Workplace Learning, 22 (8), 522 – 529.
[2]. Adamu, N., Nensok, M. H. & Aka, A. (2012). Multi-skilling Barriers in the Construction Industry in North-Western Nigeria In: Laryea, S., Agyepong, S.A., Leiringer, R. and Hughes, W. (Eds) Procs 4thWest Africa Built Environment Research (WABER) Conference, 24-26 July 2012, Abuja, Nigeria, 67- 82.
[3]. Ajanlekoko, J.O. (2012). From Thermometer to Thermostat: The Challenging Role for the Quantity Surveyors in the 21st Century, The Quantity Surveyor: 1 (1), 40-41.
[4]. Akinola, J. A. (2016). Appraisal of Service Delivery of Multiskilled Quantity Surveyors in Nigeria, A Ph. D Thesis Submitted to School of Postgraduate Studies, Federal University of Technology, Akure, Nigeria.
[5]. Babalola, O. (2009). A Study of the Core Competencies of Quantity Surveyors in Managing Electrical and Engineering Services Sub-contract, Journal of Environmental Design and Management, 2 (1), 55-64.

Abstract: Tungsten inert gas welding process have the joining of two unlike metals.tungsten inert gas welding is one of the best technique used for jooining the ferrous & non ferrous matals in this paper we are study of the mechanical properties of aluminium alloy AA6061 of different welding current,voltage,gas flow rate.the aluminium alloy of tungsten inert gas welding are invested the vickers rockwell hardness test & surface roughness test & behaviour of the material.the output parameters are used by the hardness of the material,ultimate tensile strength,rockwell hardness test.the rockwell hardness test can be tested by the welded surface are check the roughness of the welded surface.

Key words: AA6061, gas flow rate, hardness test, ultimate tensile strength, welding current.

[1]. Naitik S.Patel, Prof Rahul B Patel, A Review on parametric optimization of tig welding, 2014, 27-31.
[2]. A.K.Hussain, A,Lateef, M.Javed,T.Pramesh, influence of welding speed on tensile strength of welded joints in TIG welding process, 3, 2010, 518-527.
[3]. S.Mayur, K.M.Pavan, L.S.Sachin, A.Chandrashekhar, B.S.A.Kumar, Effect of welding current on the mechanical and structural properties of TIG welded aluminium alloy AA5083, 3, 2013, 431-438.
[4]. I.R.M and R.N.Marpu, Effect of pulsed current tig welding parameters on mechanical properties of J-Joint strength of AA6351, 2012, 1-5.
[5]. Verma Nishant, Rao P.S and Vettivel S.C. Review on effect of various types of reinforcement particles on mechanical behavior of 6061 and 7075 Aluminum alloy matrix composites, International Journal of Engineering technologies in engineering research. 2017,5(8),100-104.

Abstract: The flight's demand for the use of runways is important to factor in planning capacity and facility requirements at airports, the growth of flight traffic at Juanda Surabaya. The airport is increasing, while the runway capacity is fixed and inadequate to serve airplane movements so that smooth flight traffic is disrupted by queues. This study aims to analyze the operational performance of runway capacity to determine the clarity between the needs and availability of runway capacity and facilities at the airport. Prediction of flight, traffic using Double Smoothing Exponential Method and comparing to the runway capacity influenced by factors increasing the airplane movement, time of runway use by airplane with a simulation of a service queue. The results showed that the current runway capacity.........

Key words: Air Transportation, Flight Traffic, Runway Occupancy Tim, Plane Queuing

[1]. Perum Airnav Surabaya Branch, 2019, Submission of flight data for research, Surabaya.
[2]. Rizki, Y.S., 2019, Role of Low-Cost Airlines in Adisutjipto Airport Yogyakarta for Increasing Number of Domestic Touris
[3]. Wening, I. U. W. N, Jinca, M.Y., Rahim, J., 2019, Level Of Utilization Of Sultan Hasanuddin International Airport
[4]. International Civil Aviation Organization, Doc. 4444 ATM/501, 2001, Procedure for Air Navigation Services Air Traffic Management, Montreal-Canada.
[5]. Horonjeff, R. (2015). Planning and Design of Airports.