Time filter

Source Type

Navaneethakrishnan P.,Kongu Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology | Ramprasath R.,Sri Aravindar Engineering College
International Journal of Machining and Machinability of Materials | Year: 2013

Drilling of holes in the assembly of structural frames of automobile and aircrafts are inevitable in order to make joining of parts. The drilling induced damage imparts reduced life and efficiency of parts. The present study attempts an effort to correlate drilling induced damage with drilling parameters during drilling on the Sisal-glass/vinyl ester hybrid composites. Diameter of drill, speed and feed rate were considered as significant factors and they control or minimise the drilling induced damages. Experiments were conducted under various cutting conditions as per design of experiments. Mathematical models for thrust force, torque and delamination factor were developed using non-linear regression equations. Optimisations of controlling parameters were done using Nelder-Mead simplex search method and central composite face centred design (CCFD). Analysis of variance (ANOVA) was used to study the effect of process parameters on drilling responses. The results revealed that the delamination can be effectively reduced in drilling of sisal-glass fibre composite materials by applying the lower feed rate values. Copyright © 2013 Inderscience Enterprises Ltd.

Sharp D.F.T.A.,Sri Aravindar Engineering College | Kumar P.S.,Dr Pauls Engineering College
Proceedings of International Conference on Electronics Communication and Computing Technologies 2011, ICECCT'11 | Year: 2011

The medical imaging analysis is the process to view and understand the internal structure and function of the physiological system in medical diagnostic and therapeutic applications. Coronary artery angiography is playing a decisive role to determine the presence of cardiac diseases and the consequences for a therapeutic approach. So, the coronary angiography is remained for determining the extent, location and severity of the cardiac diseases. Automatically segmenting the coronary arteries in X-ray angiogram images has been an active area of research over the past several years and is an important task in medical imaging. Here mathematical morphological operations are used for segmenting the arteries. This method was impleme nted for a variety of clinical images. The results indicate the feasibility of achieving robust and consistently accurate image segmentation through this method. © 2011 IEEE.

Ramprasath R.,Sri Aravindar Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology | Sundaram S.K.,Alagappa Chettiar College of Engineering And Technology | Munde Y.S.,MKSSS's Cummins College of Engineering for Women
Macromolecular Symposia | Year: 2016

The use of natural fibers and bio-particles as reinforcement in polymeric composites is gaining keen interest in the field of cellulose based composite materials, due to its attractive properties such as light weight, low cost and biodegradability etc. Several studies in the past have reported major improvement in the mechanical behaviors of fiber reinforced polymer composites by impregnating bio-particulate with the matrix system. This investigation is aimed at introducing a hybrid reinforcement based polymer composites which uses rice husk as bio-particles and green husk coir as fibrous reinforcement. The composite sheets were fabricated as per full factorial design of experimental plan by varying the fabrication parameters namely fiber length, fiber content and particulate content. The effects of fabrication parameters on the impact properties of the composites were analyzed and favorable conditions to yield better impact strength were determined. The X-ray diffraction and Scanning electron microscopy techniques were used to characterize the bindability of rice husk and coir fibers in the resin system. A major improvement in the impact properties was inferred on impregnating rice husk bio-particles in coir-vinyl ester composites. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Ramprasath R.,Sri Aravindar Engineering College | Satiyamurthy S.,Sri Ramanujar Engineering College
Advanced Materials Research | Year: 2014

The natural fiber reinforced polymer composites are recognized as an alternative to wood and plastics in recent years. The natural plant fibers are extracted from various parts of the tree and are used in polymer composites. The present investigation is focused on the improvement of tensile strength of coir-vinyl ester composites by impregnation of bio particulates such as alumina, red mud and rice husk. The fracture method of composite specimens are analyzed with the help of scanning electron micrographs. The observed range of tensile strength values are studied using statistical procedure and non linear regression models are developed. © (2014) Trans Tech Publications, Switzerland.

Thennarasu J.,Sri Aravindar Engineering College | Meenakshi G.,Pondicherry University
Rasayan Journal of Chemistry | Year: 2011

Investigation based on the behavior of propagation of ultrasonic waves in Solids and liquid system are now rather well established as an effective means for examining certain physical properties of the materials. The data obtained from ultrasonic propagation parameters such as ultrasonic velocity, adiabatic compressibility, molar volume, free length etc; and their variation with concentration of one of the component of the medium are useful in understanding the nature of molecular interaction in terms of physical parameters. Owing to the sensitivity to very low population densities at high energy states, ultrasonic methods have been preferred and are reported to be complementary to other technique like dielectric relaxation, I.R spectroscopy, N.M.R etc. A Thorough study of literature reveals that the ternary liquids and liquid mixtures were studied and reported by different scientists. They reported on the nature of forces involved in the formation of the hydrogen bonds. The research work on benzene with ethyl methyl ketone and acetophenone at 293k, 298k, and 303k system is scanty, and one of the reasons for the same is that weak complex formations arise in the hydrogen bonds. In the study of molecular interactions, the O-H finds an important role as it is highly polar and associates with any other group in a molecule having some degree of polar attraction. The present investigation has been undertaken to study the nature of interaction between benzene with ethyl methyl ketone and Acetophenone at 293k, 298k, and 303k. © 2011 RASĀYAN. All rights reserved.

Jayabal S.,Alagappa Chettiar College of Engineering And Technology | Rajamuneeswaran S.,Alagappa Chettiar College of Engineering And Technology | Ramprasath R.,Sri Aravindar Engineering College | Balaji N.S.,Alagappa Chettiar College of Engineering And Technology
Transactions of the Indian Institute of Metals | Year: 2013

The tensile, flexural and impact properties of calcium carbonate particles-impregnated coir fiber-reinforced polyester composites were evaluated. The short untreated green husk coir fibers were used as reinforcement materials in unsaturated polyester resin matrix. The composite fabrications were planned with the three levels of fiber parameters namely fiber length, fiber diameter and filler content as per design of experiments (DOE) and the mechanical properties were tested as per ASTM standards. An artificial neural network (ANN) model was developed to predict the mechanical properties and it was observed that the developed ANN model accurately predicted the mechanical properties within the ranges specified. © 2013 Indian Institute of Metals.

Ramprasath R.,Sri Aravindar Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology
Indian Journal of Fibre and Textile Research | Year: 2015

The present investigation is focused on evaluation and optimization of impact behavior of bio particulated coir-vinyl ester composites. The bio particles such as groundnut shell, alumina and termite mound soil have been selected and their influences on the impact behavior of coir -vinyl ester composites are evaluated. The bio particulated composite fabrications are planned as per full factorial design with the different levels of fibre length, fibre content and particulate content. The impact strength of fabricated composites is evaluated. The nonlinear regression models are developed for the prediction of impact behaviors over the specified range of conditions. The fabrication parameters for the maximum value of impact behaviors are also determined using simulated annealing algorithm and conformance checking is carried out using post analysis. The optimum values of impact behaviors of 39.5, 45.9 and 52.1 kJ/m2 are obtained in coir-vinyl ester composites reinforced with groundnut shell, alumina and termite mound soil respectively. © 2015, National Institute of Science Communication and Information Resources (NISCAIR). All right reserved.

Ramprasath R.,Sri Aravindar Engineering College | Jayabal S.,Alagappa Chettiar College of Engineering And Technology | Sathiyamurthy S.,Sri Ramanujar Engineering College
Transactions of the Indian Institute of Metals | Year: 2014

Addition of red mud particles into coir fiber reinforced vinyl ester composites is investigated in this study. Red mud is the caustic insoluble waste residue generated during the alumina production from bauxite. The composites were fabricated by varying weight percentage of the red mud and length of the coir fiber in polymer matrix composites. The compression molding process was used for fabricating the composites and static mechanical tests like flexural and impact were conducted as per ASTM standards. The non linear regression models were developed and optimum conditions for better mechanical behavior were determined using Response Surface Methodology and Simulated Annealing algorithms. An intuitive analysis was conducted to determine the better value of mechanical behaviors within the ranges of fabrication parameters. © 2014 The Indian Institute of Metals - IIM.

Loading Sri Aravindar Engineering College collaborators
Loading Sri Aravindar Engineering College collaborators