Photonics at IIT Madras
T L Jagadeeshwar
Name of Guide :Dr. Balaji Srinivasan
Year of Joining: 2016
Research Topic: Structural Health Monitoring of Composites using Fiber Bragg Gratings
Position: PhD
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Background:
- Pursued B.Tech in Electronics and Instrumentation at Sree Vidyanikethan Engg College, Tirupathi, AP in 2013.
- Pursued M.Tech in Instrumentation at National Institute of Technology Kurukshetra, Haryana in 2016.
Current Research:
Ongoing research is on Structure health monitoring (SHM) of composites, which plays a vital role in Aerospace industry. Defect identification is a part of SHM. The usage of composites has increased rapidly due to their light weight and stiffness. These composites are not like metals, they may give little or no warning before failing. These material failures like delamination will cause severe damage. Using guided waves and embedding FBG in laminates will help to detect the material defects at earlier stage thereby avoiding severe damage. Interrogation with guided waves are attractive as it provides defect identification and localization. FBGs are widely adapted in SHM due to their rugged wavelength-encoded transduction mechanism, immunity to EM interference, ability to sense multiple parameters like temperature and strain, compact in size and less cost compared to conventional sensors