iosr-JMCE   Volume-17 ~ Issue-1 ~ Jan. - Feb. 2020

Abstract: The sixth revision of IS 1893 (Part 1): 2016, "Criteria for Earthquake Resistant Design of Structures" and first code of tall building IS 16700: 2017, ""Criteria for Structural Safety of Tall Concrete Buildings" have been published by Bureau of Indian Standards recently. In this new code many changes have been included considering standards and practices prevailing in different countries and in India.In this study, performance of RCC buildings with G+12 and G+16 storeyhas been evaluated by both equivalent static analysis and response spectrum analysis method. Performances of these building models are studied for zone II, II, IV and V and compared. Entire mathematical 3D models using the finite element software ETABS

Key Word: Seismic loads, IS1893:2016, IS 1893:2002, RC Framed Buildings, Tall Buildings

[1]. Bureau of Indian Standards (BIS). Criteria for Earthquake Resistant Design of Structures, IS 1893(Part I)-2002 (Fifth Revision), New Delhi.
[2]. Mohammad Azoz, Anshul R Nikhade ―Pushover analysis of G+10 Reinforced concrete structures for zone II and zone III as per IS1893(2002)‖.
[3]. IS: 456(2000), "Indian Standard Code of Practice for Plan and Reinforcement concrete (Fourth Revisions)", Bureau of Indian Standards (BIS), New Delhi.
[4]. Comparative Study Of R.C.C, Steel And Composite (G+30 Storey) Building by D. R. Panchal And P. M. Marathe
[5]. K Venu Manikanta, Dr. Dumpa Venkateswarlu, Comparative Study On Design Results Of A Multi- Storied Building Using Staad Pro And ETABS For Regular And Irregular Plan Configuration, Volume 2, Issue 15, PP: 204 - 215, September' 2016.

Abstract: The need of petroleum fuels is increasing everyday despite of their speculation regarding the depletion of petroleum fuels. The petroleum fuels are categorized as suspicious element for human being due to its well known major harmful effects on the environment. The concern is that the need of petroleum fuel is increasing simultaneously with its price in the market. The researchers around the world are focusing either on the reduction of harmful effects which produced from the petroleum fuel or finding another a batter substitute of the petroleum fuel. The present research is about the reduction of harmful gases from the exhaust of a diesel fuel operated diesel engine. This research also includes the details analysis of combustion and performance parameters. A kirloskar single cylinder diesel engine (model –TV-1) is selected for the numerical simulation using commercially available software AVL FIRE. The operating and boundary condition of single cylinder diesel engine is referenced in the published.....

Keywords: spray angle, nozzle depth, numerical simulation, emission parameters, combustion parameters, and performance parameters.

[1]. Dinesh Kumar Soni, Rajesh Gupta. Numerical analysis of flow dynamics for two piston bowl designs at different spray angles, Journal of Cleaner Production 149 (2017) 723-734.
[2]. Dinesh Kumar Soni, Rajesh Gupta. Numerical investigation of emission reduction techniques applied on methanol blended diesel engine. Alexandria Engineering Journal (2016) 55, 1867–1879
[3]. Dinesh Kumar Soni, Rajesh Gupta. Application of nano emulsion method in a methanol powered diesel engine, Energy 126 (2017) 638e648.
[4]. J. Li, W.M. Yang , H. An, A. Maghbouli, S.K. Chou. Effects of piston bowl geometry on combustion and emission characteristics of biodiesel fueled diesel engines. Fuel 120 (2014) 66–73.
[5]. B.V.V.S.U. Prasad, C.S. Sharma, T.N.C. Anand, R.V. Ravikrishna. High swirl-inducing piston bowls in small diesel engines for emission reduction. Applied Energy 88 (2011) 2355–2367.

Abstract: In this study, (WG) was used as partial replacement of basalt (coarse aggregate) with 0%,5%,10%,15% ,20%, 25%,30%,35%,40%,45% and 50% ratios by weight. Some mechanical and other concrete properties produced in this way have been explored at both hardened and fresh stages. The results from the tested specimens (which prepared from concrete mixes with water/cement ratio equals to 0.5), illustrated that the usage of WG as a coarse aggregate resulted in reduction in slump, density, and water absorption, as well as enhancement the strength of concrete ([compression and tension]) until 25% of replacement by weight. Tests showed that with the percentage increase of WG the strengths gradually increase up to a given limit beyond which they decrease. The maximum influence reached a 25% replacement ratio, where the strength growth [tension and compression) was approximately 15 % and 14 % respectively compared to the control concrete (0% WG).

Keywords: Concrete, Waste Glass, Coarse Aggregate, Slump, Compressive Strength

[1]. Eme D. B. and Ekwulo E. O "Effect Of Crushed Glass As Coarse Aggregate For Concrete Pavement" American Journal of Engineering Research (AJER) Volume 7, Issue 1, 2018, pp336-345
[2]. Olomo Rachael.O.,AlaoMatthew.O., PopoolaOyinade. C., And OgundareDamilola.A. "Partial Replacement of Coarse Aggregate with Waste Glass in Concrete Production" Journal of Mechanical and Civil Engineering (IOSR-JMCE), Volume 16, Issue 3 Ser. IV May. - June. 2019, PP63-69
[3]. MuzamilLiaqat , MudasirLiaquat Shah and MirzaAamirBaig "Effect of Waste Glass as Partial Replacement for Coarse Aggregate in Concrete" International Journal of Technical Innovation in Modern Engineering & Science (IJTIMES) Volume 4, Issue 6, June 2018
[4]. Kumar Animesh , JeetTiwari and KapilSoni "Partial Replacement of Fine Aggregate & Coarse Aggregate by Waste Glass Powder & Coconut Shell" International Research Journal of Engineering and Technology (IRJET) Volume 4, Issue 10 , Oct.2017
[5]. IshanSrivastava, Sukhvinder Singh Sehmi , Dushyant Gupta, Kumar Shivam and JhalkiBharadwaj "Partial Replacement of Fine Aggregates with Waste Glass" International Journal of Advance Research Ideas and Innovations in Technology Volume 3, Issue4, 2017

Abstract: The analysis of variance(ANOVA) method was adopted to evaluate the main effect of the maximum fatigue load(MFL) on the crack growth at the early crack propagation and at the stage near failure in magnesium alloy. In the early stage of crack propagation, the smaller the MFL, the smaller the crack growth and the larger the MFL, the greater the scatter of grown crack. But at the stage near failure, the smaller the MFL, the larger the crack growth and the scatter of grown crack. The variances of grown crack were equal for three levels of the MFL at the early crack propagation and at the stage near failure. Through the residuals diagnostics for the grown crack, the validity of ANOVA was confirmed by verifying the normal distribution and mutual independence of the residuals. The ANOVA verified the MFL factor is highly significant for crack growth. The significance of the levels of MFL factor was also verified through the ANOM test. It was found that the MFL factor and its level affect significantly on the crack growth at the early crack propagation and at the stage near failure in magnesium alloy.

Key Word: ANOVA, Fatigue, Magnesium alloy, Maximum fatigue load(MFL)

[1]. Briffod, F., Shiraiwa, T., & Enoki, M.. Numerical investigation of the influence of twinning/detwinning on fatigue crack initiation in AZ31 magnesium alloy. Materials Science and Engineering: A, 2019;753: 79-90
[2]. Nakai, Y., Saka, M., Yoshida, H., Asayama, K., & Kikuchi, S.. Fatigue crack initiation site and propagation paths in high-cycle fatigue of magnesium alloy AZ31. International Journal of Fatigue, 2019;123: 248-254.
[3]. Han, Z., Luo, H., Sun, C., Li, J., Papaelias, M., & Davis, C.. Acoustic emission study of fatigue crack propagation in extruded AZ31 magnesium alloy. Materials Science and Engineering: A, 2014;597: 270-278.
[4]. Ishihara, S., McEvily, A. J., Sato, M., Taniguchi, K., &Goshima, T.. The effect of load ratio on fatigue life and crack propagation behavior of an extruded magnesium alloy. International Journal of Fatigue, 2009; 31(11-12): 1788-1794.
[5]. Zheng, S., Yu, Q., & Jiang, Y.. An experimental study of fatigue crack propagation in extruded AZ31B magnesium alloy. International Journal of Fatigue, 2013;47: 174-183.

Abstract: The simulation of thedirect tensile test by the Discrete Elements Method (DEM) hasbeendone.The generation ofhomogeneous andisotropic test tubes was made by the numerical processof"radius expansion and friction decrease." The effect of the micro- mechanical parameters on the tensile strength hasalsobeenstudied. Normaland tangential adhesionsandstiffness are the parametersthat affect the tensilebehavior, while the friction coefficient was ineffective.

Keywords: tensile test –numerical simulation - Discrete element method

[1]. Ammeri, A., Neifar, M., Ibrahim, K. and M Bouassida. Experimental and Numerical Study of the Split Tensile Test on a Silty Soil : Discrete Element Analysis. International Journal of Engineering Research & Technology (IJERT), 5(01), January-2016, pp 929-936.
[2]. A Ammeri, M Jamei, M Bouassida, O Ple, P Villard, JP Gourc. Numerical study of bending test on compacted clay by discrete element method: tensile strength determination. International Journal of computer applications in technology 34 (1),2009, pp 13-22
[3]. Xiaobin Ding,Lianyang Zhang . A new contact model to improve the simulated ratio of unconfined
[4]. Compressive strength to tensile strength in bonded particle models. International Journal of Rock Mechanics& Mining Sciences69(2014)111–119
[5]. Jinhui Ren , Zhenghong Tian and Jingwu Bu.Simulating Tensile and Compressive Failure Process of Concrete with a User‑defined Bonded‑Particle Model. International Journal of Concrete Structures and Materials, (2018) 12:56.

Abstract: This article presents thermal modeling of conjugate heat transfer problem of liquid metal fluid in mini-scaled thermal storage. The heat transfer conjugate problem consists of turbulent convective flow of the
heat transfer fluid (HTF) and melting process in the phase change material (PCM). The Sodium-Potassium (NaK) liquid metal fluid was selected as the HTF while the paraffin wax was used as the PCM. The local
Nusselt (Nu) number represents the thermal behavior of the HTF; alternatively, the melting heat characteristics was reported by the average liquid fraction of the PCM. The present model was verified by comparison its
results to those obtained from previous work in the literature. There was a decent concord between both results with maximum deviation of 10......

Keywords: Melting process, conjugate problem, forced convection, natural convection, mini-channel thermal storage

[1]. Martin Longeon, Adèle Soupart, Jean-François Fourmigué, Arnaud Bruch, Philippe Marty: Experimental and numerical study of annular PCM storage in the presence of natural convection. Applied Energy 112 (2013) 175–184.
[2]. Atul Sharma, V.V. Tyagi, C.R. Chen, D. Buddhi: Review on thermal energy storage with phase change materials and applications. Renewable and Sustainable Energy Reviews 13 (2009) 318–345
[3]. M Khamis Mansour: Effect of natural convection on conjugate heat transfer characteristics in liquid mini-channel during phase change material melting. Proc IMechE Part C: Journal of Mechanical Engineering Science 2014, Vol. 228(3) 491–513.
[4]. Brousseau P and Lacroix M. Numerical simulation of a multi-layer latent heat thermal energy storage system. International Journal of Energy Research 1998; 22: 1–15.
[5]. Okada M. Characteristic of a plate-fin heat exchanger with phase change materials. Journal Enhanced Heat Transfer 1995; 2(4): 273–281.