Qualification: 
M.Tech
Email: 
l_mahadevan@cb.amrita.edu

Mahadevan Lakshmanan currently serves as Assistant Professor at the department of Mechanical Engineering, Amrita School of Engineering, Coimbatore Campus. He pursued his MTech in Engineering Design in 2010 from Amrita Vishwa Vidyapeetham. His areas of research include Mechanics and Mechanical Behavior of Composite Structures, Experimental Stress Analysis, Characterization of Polymer Nano Composites.

Publications

Publication Type: Journal Article

Year of Publication Publication Type Title

2017

Journal Article

A. Padanattil, Lakshmanan, M., and Dr. Mini K. M., “Strengthening of plain concrete cylinders with natural sisal FRP composite systems”, International Journal of Earth Sciences and Engineering, 2017.

2017

Journal Article

B. L. P. Dheeraj Swamy, Raghavan, V., Srinivas, K., K Rao, N., Lakshmanan, M., Dr. Jayanarayanan K., and Dr. Mini K. M., “Influence Of Silica Based Carbon Nano Tube Composites In Concrete”, Advanced Composites Letters, vol. 26, no. 1, pp. 12-17, 2017.[Abstract]


This study focuses on the utilization of highly densified materials in cementitious composites with objectives of improving the mechanical performance and minimizing the number and size of defects. Due to their excellent mechanical properties, carbon nanotubes (CNTs) are now viewed as potential candidate for reinforcement in cement composites. The present paper reports the use of carbon nanotubes (CNTs) as reinforcement to improve the mechanical properties of portland cement paste and creating multifunctional concrete. In order to increase the bonding, and strength, a material with intermediate fineness, highly densified silica fumes, was also utilized. The densified silica fumes along with CNT are added to cement mortar in various proportions. Small-scale specimens were prepared to measure the mechanical properties as a function of nanotube concentration and distribution. Furthermore, properties like shrinkage, permeability and alkalinity of the resultant composite were also investigated. The study addresses the significance of CNT as an additive to the enhancement of properties of cement composite. More »»

2015

Journal Article

R. Reghunath, Lakshmanan, M., and Mini, K. M., “Low velocity impact analysis on glass fiber reinforced composites with varied volume fractions”, IOP Conference Series: Materials Science and Engineering, vol. 73, no. 1, 2015.[Abstract]


This paper presents an experimental study to assess the impact response of bidirectional woven type of glass fiber reinforced composite material with varied volume fractions and hence to find out the optimal volume fraction which gives better impact resistance. The specimens are prepared using vacuum bagging process and the volume fraction is estimated by resin burn off method. For getting information regarding surface topography of the impacted specimen, scanning electron microscopy is conducted. The study is done by slightly varying the velocities and it is found that a volume fraction of 43 -44% gives a better impact resistance which is also confirmed by the scanning electron microscopy test. From the SEM results it is observed that matrix cracking, fiber breakage, debonding and fiber pull out are the major modes of failure during the impact, which reduces the structural strength and stability of the structure.

More »»

2015

Journal Article

B. L. P. Dheeraj Swamy, Raghavan, V., Srinivas, K., K Rao, N., Lakshmanan, M., and Dr. Mini K. M., “Study on Silica Based Carbon Nano Tube Cement Composites’ International Journal of Earth Sciences and Engineering”, International Journal of Earth Sciences and Engineering, 2015.

2012

Journal Article

Dr. Mini K. M., Lakshmanan, M., Mathew, L., and Mukundan, M., “Effect of fibre volume fraction on fatigue behaviour of glass fibre reinforced composite”, Fatigue & Fracture of Engineering Materials & Structures, Wiley Publishing Ltd., vol. 35, no. 12, pp. 1160–1166, 2012.

2012

Journal Article

Dr. Mini K. M., Lakshmanan, M., Mathew, L., and Kaimal, G., “Effect of volume fraction on stability analysis of glass fibre reinforced composite plate”, Steel & Composite structures , vol. 12, no. 2, pp. 117-127, 2012.[Abstract]


This paper deals with an experimental investigation to study the effect of fibre content on the stability of composite plates with various aspect ratios. Epoxy based glass fibre reinforced composite plates with aspect ratio varying from 0.4 to 1 and with volume fractions of 0.36, 0.4, 0.46, 0.49 and 0.55 are used for the investigation. From the study it is observed that for plate with aspect ratio of 0.5 and 0.4 there is no buckling and the plate got crushed at the middle. As the volume fraction increases the buckling load also increases to a limit and then began to reduce with further increase in fibre content. The optimum range of fibre content for maximum stability is found between 0.49 and 0.55. Polynomial expressions are developed for the study of buckling behaviour of composite plates with different volume fractions in terms of load and aspect ratio. More »»

Publication Type: Conference Paper

Year of Publication Publication Type Title

2013

Conference Paper

K. M. Mini, Lakshmanan, M., and Midhun, R., “Effect of Fiber orientation on Fracture Toughness of Glass/Epoxy and Carbon/Epoxy Composites”, in Indian Conference on Applied Mechanics (INCAM) , IIT, Madras, 2013.[Abstract]


Most of machine elements consist of discontinuities where it is necessary to consider stress distributions from fracture mechanics point of view. In the present work fracture toughness of unidirectional carbon fiber reinforced laminates (CFRP) and glass fiber reinforced laminates (GFRP) with
different fiber orientation angles and single edge notch configurations perpendicular to loading direction are investigated experimentally . Fracture toughness is calculated by determining failure loads and best fiber configuration for fracture toughness is found to be [0/15]s. Studies are extended to investigate the variation in fracture toughness of [0/15]s configuration under the influence of nano particles like CNT.

More »»

2012

Conference Paper

M. Lakshmanan, Mini, K. M., and Reghunath, R., “Low Velocity Impact Studies on GFRP composites with different volume fractions”, in Eleventh ISAMPE NationalConference on Composites (INCCOM-11), Amrita Vishwa Vidyapeetham, Coimbatore, 2012.

2012

Conference Paper

R. Reghunath, Lakshmanan, M., and .M.Mini, K., “Impact studies on glass fiber reinforced composite materials with different volume fraction”, in International Conference on Materials Science and Technology (ICMST 2012) - Department of Physics, St. Thomas College, Pala, Kottayam, Paper No. 217., Department of Physics, St. Thomas College, Pala, Kottayam, 2012.

2009

Conference Paper

M. Lakshmanan, Mini, K. M., and Subramanian, K., “Stability of Composite Plates- a Study Using Artificial Neural Networks”, in International Conference on “Operations Research applications in Engineering and Management (ICOREM), Anna University, Tiruchirappali, 2009.

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