Scientist , National Metallurgical Laboratory, Jamshedpur,India August-2005 -

Research Associate at NDE Lab, Department of Aerospace Engineering,Indian Institute of Science, Bangalore, , funded by Aeronautical Research and Development Board (AR & DB, a Govt. of India Organization) March-2004 to August-2005

Education 

Ph.D. , Aerospace Engineering , Indian Institute of Science, Bangalore, 2004
M.E. Mechanical, Bengal Engineering College, 1998.
B.E. Mechanical , Bengal Engineering College 1996.

PhD. Dissertation Topic: A study on characterization of failure modes in composites by acoustic emission using PVDF film sensor for health monitoring .

Advisor: Prof. C.R.L. Murthy & Dr. M.R.Bhat

Research Experience

Fabrication and curing of composites .
Mechanical testing of composites.
Fabrication of PVDF film sensor.
Establishment of PVDF film as Acoustic Emission.
Detection of sensitivity and comparizon with PZT.
Online monitoring of structural response in composites.
Time domain and frequency domain analysis of AE signal and damage  characterization in composites.
Classification of AE signal with Artificial Neural Network approach.

Other related experience:

Off-line damage detection with Ultrasonic C-scan imaging.
Damage and processing monitoring with thermal imaging.
X-ray tomography.
 

List of Publications 

Journals

1. Himadri Nandan Bar, M.R.Bhat and C.R.L. Murthy, 2002, "Health monitoring of composites panels using PVDF film sensor", Advances in Vibration Engineering, Vol.1 No. 2.

2. H.N. Bar, M.R. Bhat and C.R.L. Murthy,2004, "Identification of Failure Modes in GFRP Using PVDF Film Sensors: Artificial Neural Network Approach", Composite Structures, Vol 65 No.2, (231-237).

3. H.N. Bar, M.R. Bhat and C.R.L. Murthy,2005, "Waveform Based Damage Characterization in Composites Using PVDF Film Sensors", Journal of Non-Destructive Testing & Evaluation Vol 3 No. 4

4. H.N. Bar, M.R.Bhat and C.R.L. Murthy, 2005 "Parametric Analysis of Acoustic Emission Signals for Evaluating Damage in Composites Using a PVDF Film Sensor", Journal of Non-Destructive Evaluation. Vol. 24 No.4, (121-130)

5. H.N. Bar, M.R. Bhat and C.R.L. Murthy, "Wavelet analysis of Acoustic emission signals for evaluating damage in composites using PVDF film sensor." ( communicated in NDT & E International)

6. H.N. Bar, A. Venkataramanaiah, M.R. Bhat, C.R.L. Murthy, C.M. Manjunatha, S. Kalyansundaram and T.C.S. Reddy "Ultrasonic and thermal imaging induced damage in T-pull CFRP composite" (communicated to Korean Journal of Nondestructice Evaluation)

International Conference

1. H.N.Bar, Rizwan Ali, M.R.Bhat and C.R.L. Murthy,26-28 , May, 2003, "Health monitoring of composites with piezo-sensors", Proceedings of third International conference on Emerging Technologies in Non-destructive Testing.

National Conference/ Symposium

1. K. Jain, H.N.Bar, M.R.Bhat and C.R.L. Murthy,2005, "Infrared Thermographic Evaluation of Defects in Composites ", National Conference on NDE-2005, 2-4Dec. Kolkata

2. H.N. Bar, M.R. Bhat , C.R.L. Murthy and K. Balasubramaniam,15-16 April, 2005, "Wavelet analysis o Acoustic Emission signals from composites using PVDF film sensor", AR & DB Annual Symposium, SERC, Chennai.

3. H.N. Bar, M.R. Bhat , C.R.L. Murthy and K. Balasubramaniam, 3-4 April 2004 "Smart Structural Concepts for guided Wave Evaluation of Composites with Embedded Polymer Film Transducers", AR & DB Annual Symposium, Indian Institute of Technology, Kanpur.

4. H.N.Bar, M.R.Bhat and C.R.L. Murthy,2001, "Health monitoring of composite panel Using PVDF film sensor", Inhouse symposium, Choksi Hall, IISc, Bangalore.
 
 

Computer Skills 

Signal Processing:     MISTRAS-2001, Mi-TRA (AE analysis), TRANSCAN (Ultrasonic imaging), Different MATLAB tools (especially Wavelet, ANN).

Applications:      In house Software for Artificial Neural Network (NAEDA) LaTeX, MSOffice packages.

Operating System:      Unix(SUN Solaris, HP UX, IBM AiX), Linux, Windows.
 

References

Professor C.R.L. Murthy 
Department of Aerospace Engineering 
Indian Institute of Science 
Bangalore -560012, INDIA 
Ph: 91-080-2932875 
E-mail: crlmurty@aero.iisc.ernet.in
Web: http://aero.iisc.ernet.in/~ndeaero/crl.html

Dr. M.R.Bhat
Senior Scientific Officer
Department of Aerospace Engineering
Indian Institute of Science
Bangalore-560012, INDIA
Ph: 91-080-2933025
E-mail: mrb@aero.iisc.ernet.in
Web: http://aero.iisc.ernet.in/~ndeaero/mrb.html

Krishnan Balasubramaniam
Professor in Mechanical Engineering and
Head of Centre for Nondestructive Evaluation
Indian Institute of Technology Madras
Chennai 600 036, INDIA
Tele: +91-44-2257-8588
 Fax: +91-44-2257-0545
 Email: balas@iitm.ac.in
 Web: www.cnde-iitm.org