Open Access

INTERNATIONAL JOURNAL OF APPLIED ENGINEERING RESEARCH,DINDIGUL

VOLUME 1, NO 1 - 2010              ISSN 0976- 4259

ABSTRACTS

Performance Evaluation of Protective Coatings on Corrosion resistance in Transmission Line Tower foundations
Author(s)- R.Siva Chidambaram Dr.G.S.Thirugnanam

Abstract:
Corrosion of steel angles in concrete has become one of the menacing problems on durability aspects, which influence the service life of the structures.The life cycle cost of transmission tower foundations, which are corrosion prone has increasingly, become difficult to manage. Failures in their transmission line components amounts to thousands of dollars only in maintenance costs apart from other related expenditures. Many of these failures are corrosion related due to the exposure of the system materials to aggressive atmospheric and/or soil environments .            

               

Transmission line towers running close to coastal area are attacked by chlorides and sulphates  and the towers in the vicinity of  chemical , petro chemical, fertilizer and other industries are subjected to aggressive chemical attacks. Because of the  extreme climate conditions prevailing in certain areas, transmission line tower stubs/coping/muffing concrete have been severely deteriorated and stub angle were corroded very much. During submergence of stub steel above concrete chimney for some period in rainy season, water acting as salt dissolved electrolyte, the corrosion process is aggravated particularly in the presence of chlorides and phosphates. A mechanism of pitting or crevice corrosion will initially occur in the presence of aggressive chloride ions..   Application of Protective coating to steel angles and addition of admixtures to the concrete is one of the best method of controlling corrosion in steel angle.Effect of providing coatings on stub angle, addition of admixtures in stub concrete, corrosion inhibitors and barrier coatings on stub concrete against corrosion had been investigated in the laboratory under accelerated environmental condition

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Experimental Studies on Viability of Using Geosynthetics as Fibers in Concrete
Author(s)- K.Rajeshkumar, N.Mahendran,R. Gobinath

Abstract
It is evident from literature review that in the recent decades the thrust for finding an alternative to the costly steel reinforcement is increasing, several alternatives have been tested across the globe. Some viable alternatives are found, also many techniques of replacing the steel and addition of tensile strength to concrete is studied. The methods which are found to be cost effective and feasible are also tried in construction in various areas. Once such alternative technique is providing subsidiary reinforcement in the way of addition of natural or artificial fibers to the concrete. Several fibers are also tried with concrete, some proved to be successful in adding strength and durability to the concrete but still now many fibers are in research stage only. Copious materials were introduced as additional fibers to concrete such as  polypropylene, glass fibers, FRP, coir etc. This paper describes an attempt made to incorporate geosynthetics, a material is used reinforced soil as fibers in concrete. Geosynthetics are used widely aa soil reinforcement, separators, drainage, filters and also used across the globe in  various infrastructure projects. In spite of several studies being done in Geosynthetics with soil, Geosynthetics fiber had never been added with concrete. This paper details the attempt made to check the viability of using geosynthetics as fibers in concrete.

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Investigation on Cold - formed C - section Long Column with Intermediate Stiffener & Corner Lips – Under Axial Compression
Author(s)- M. Meiyalagan M.Anbarasu and Dr.S.Sukumar

Abstract

The Present  thesis  work  aims  at the study  of  buckling  behavior  of  open  web Open cross section with intermediate stiffener & corner Lips under compression. Introduction deals with the general idea about  cold  formed  steel  members,  problems  on  investigation  need  for  this Thesis, objective of the investigation, scope of the thesis methodology. Literature review details the review of the literature on torsional flexural buckling, Distortional buckling, Channel section with Stiffened Lip and Cold formed members and Open web sections. Expressions for distortional buckling stress & flexural torsional buckling stress has been obtained for mono symmetric open cross section compression members. Four test  specimens have  been  fabricated  with geometry  of  C-  Section with  stiffened  both Web and Flange with various  thickness and experimented. Numerical analysis using  FEM Software ANSYS  11 is performed  on  the  tested  models  and  the  results  are compared  with  the Experimental results. Design for maximum Limit strength of Columns using Indian Standard (IS 801 - 1975) is to be calculated. Comparison  of  experimental  and analytical results  using ANSYS and  Indian Standard method  values  are  presented  under results and  discussion. Finally  Conclusion and  scope for  future  work  is  presented  based  on  the  results.

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Watershed Management for Asifabad and Wankadi Taluks, Adilabad District”
-A Remote Sensing and GIS Approach

Author(s)- Yassir Arafat M.N.

Abstract
The aim of this project was the development of action plans for watershed management. Watershed management is the process of creating and implementing plans, programs, and projects to sustain and enhance watershed functions that affect the plant, animal, and human communities within a watershed boundary. (wikipedia). The recent technologies like Remote Sensing and GIS helps us by giving a quicker and cost effective analysis for various applications with accuracy for Planning. It also gives a better perspective for understanding the problems and therefore helps Planners evolve a better solution for sustainable development. The study area is Asifabad and Wankadi Taluks, parts of Adilabad district of Andhra Pradesh, India lying between longitudes 78o 55’ to 80o 0’and latitudes 18o 45’ to 19o 35’, covered by toposheets no 56M with a scale of 1:2,50,000. From sources like Multi-Spectral Imageries (ETM+), RADAR (SRTM) data, GSI Maps and SOI Toposheets; the thematic layers for GIS analysis were prepared by image processing of the raw data. A special emphasis is laid on the development of action plan for land and water resources management mainly based on the land use/ land, cover, geomorphology and slope of the area. From the final output of these themes generated; recharge wells, percolation tank and check dams are recommended for the study area, mainly to control sedimentation from the catchments. To increase the groundwater recharge and vegetative cover to control soil erosion, various action plans like construction of recharge structures, afforestation etc have been proposed. This project describes in brief the work carried out for the study area using remote sensing and GIS.

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Experimental Study on behavior of Interior RC Beam Column Joints Subjected to Cyclic Loading
Author(s)- P.Rajaram   A.Murugesan   and G.S.Thirugnanam

Abstract
Beam column joint is an important component of a reinforced concrete moment resisting frame and should be designed and detailed properly, especially when the frame is subjected to earthquake loading. Failure of beam column joints during earthquake is governed by bond and shear failure mechanism which are brittle in nature. Therefore, a current international code gives high importance to provide adequate anchorage to longitudinal bars and confinement of core concrete in resisting shear. Modern codes provide for reduction of seismic forces through provision of special ductility requirements. Details for achieving ductility in reinforced concrete structures are given in IS 13920.  A two bay five storey reinforcement cement concrete moment resisting frame for a general building has been analyses and designed in STAAD Pro as per IS 1893-2002 code procedures and detailed as IS 13920-1993 recommendations. A beam column joint has been modeled to a scale of 1/5th from the prototype and the model has been subjected to cyclic loading to find its behavior during earthquake. Non linear Analysis is carried out using ANSYS software

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Use of Remotesensing and Seismotectonic Parameters to Identify Seismogenic Sources of Tamil Nadu State
Author(s)- G.P.Ganapathy, Dr. Rajarathinam

Abstract

The present study aims at to understand the geologically controlled Lineaments and analysis the regional seismicity of Tamil Nadu.  A remote sensing and GIS approach with limited ground truth verification is used for the present study to meet the objectives of the study. From the satellite imagery 257 lineaments have been delineated for Tamil Nadu based on visual interpretation.  The 59 seismically active lineaments/ faults have been identified based on their spatial association with 103 epicenters of earthquakes and their magnitudes are in the range of < 3 to 5.6.  The length of those lineaments varies from 10 km to 315km. The faults have prominent trend in the directions   N30- 50 degrees E, N10 - 40 degrees W, and EW.  The calculated stress drop for the 59 seismically active lineaments is low in the range of <1bar to 2.56 bars and it indicates that low stress drop thereby revealing that tectonic adjustment is undergoing in the upper crust. Generally there is a positive correlation between longer length of lineaments and higher association of number of epicenter of earthquakes. The distribution of lineaments, the epicenter of earthquakes and intrusive complexes confirm that the northern part of Tamil Nadu has higher seismic activity than the southern part of Tamil Nadu. The absence of an epicenter in the areas of granite intrusive and presence of epicenters in the areas of ultrabasics indicate that the earthquakes are associated with deep seated fractures. The result of the study will play a key role in Seismic Hazard Assessment for the State. 

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Disaster Resistant Rural House Design For Low Income People
Author(s)- K.Mahendran and  A.Zahir Hussain

Abstract

India has been facing natural disasters like drought, flood, cyclone, storm surge and earthquake every year in different parts of the country. These disasters cause large scale damages, destructions, death, injuries to human and animals. The non engineered houses constructed by the people are mostly damaged due to lack of technical guidance and affordability. Considering the growth of non engineered housing, and the damage level of housing due to disasters, it is essential to develop a appropriate housing model which resists the disaster forces. This paper deals with the various methods of construction disaster resistant structures.

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Multipath Dynamic Source Routingwith Cost and Ant Colony Optimization for MANETS

Author(s)-Sarala.P, Kalaiselvi.D

Abstract

The mobile adhoc networks are the infrastructureless networks constructed without any fixed infrastructure such as base station, tower, redirection switches and routers.  Mobile adhoc networks are the temporary wireless networks. All the routing information are managed by the node itself. Mobile adhoc network routing operations are categorized into two types proactive and reactive routing. The multipath routing mechanisms are used to discover multiple paths under the nodes. Multipath dynamic source routing protocol (MP-DSR) is used to discover multipath route under MANET nodes. The MP-DSR protocol uses the local link information for the route discovery process. The MP-DSR protocol is enhanced with ant colony optimization method to provide multipath route information using global link information.  EMP-DSR provides QoS factors such as end-to-end reliability.  Network traffic, bandwidth and battery power factors make an influence over the route discovery process. Cost enabled route discovery is one of the consierable routing method that enables the cost estimation with different metrics. The multipath routing protocols concentrates on the route discovery with end-to-end reliability factors. The EMP-DSR protocol is integrated with fuzzy cost estimiation techniques. Distance, network traffic, bandwidth and battery power metrics are used in the fuzzy cost enabled multipath dynamic source routing protocol.

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Mobile Agent based Routing Protocol with Security for MANET

Author(s)-Bindhu.R

Abstract

A mobile ad hoc network (MANET) consists of a set of mobile hosts. The mobile hosts are capable of communicating with each other without the assistance of base stations. The nodes of a MANET intercommunicate through single-hop and multi-hop paths in a peer-to-peer form. Intermediate nodes between two pairs of communication nodes act as routers. Mobile agent is a program segment which is self-controlling. They navigate from node to node not only transmitting data but also doing computation. They are an effective paradigm for distributed applications, and especially attractive in a dynamic network environment. A routing algorithm with multiple constraints is proposed based on mobile agents. It uses mobile agents to collect information of all mobile nodes. The algorithm has stronger routing stability and lower probability of link failure because it selects links with large link expiration time. Multipath strategy reduces the time consumption of rerouting. Also, the source node can utilize the best path to perform the data transmission to meet two QoS requirements (remaining battery and bandwidth) in order to extend the survival time of network. The mobile agent based routing algorithm is more effective and robust than AODV. The mobile agent multiple constraint based routing scheme is enhanced with security and access control features. The mobile agents have no security mechanism and access control. The authentication scheme is used to permit mobile agents to perform computations. The RSA algorithm is used for the security process. The system improves the QoS factors with bandwidth and energy consideration. The mobile agents are developed using the Aglet.

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Design, Modelling and Manufacturing of Helical Gear

Author(s)- B.Venkatesh, V.Kamala, A.M.K.Prasad

Abstract

Marine engines are among heavy-duty machineries, which need to be taken care of in the best way during prototype development stages. These engines are operated at very high speeds which induce large stresses and deflections in the gears as well as in other rotating components. For the safe functioning of the engine, these stresses and deflections have to be minimized. In this work, structural analysis on a high speed helical gear used in marine engines, have been carried out. The dimensions of the model have been arrived at by theoretical methods. The stresses generated and the deflections of the tooth have been analyzed for different materials. Finally  the  results obtained  by  theoretical analysis  and  Finite  Element  Analysis  are compared  to  check  the  correctness. A conclusion has been arrived on the material which is best suited for the marine engines based on the results. Basically the project involves the design, modelling and manufacturing of helical gears in marine applications. It is proposed to focus on reduction of weight and producing high accuracy gears.

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