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Special Seminar Dr. Rohan Soman
July 18, 2022 @ 11:00 am - 12:30 pm
Abstract:
Structural health monitoring (SHM) has a potential 13.1 times return on investment as it allows reduction in maintenance costs as well as increased service life. Several different SHM techniques have been developed trying to detect damage in the structure making use of different damage sensitive features. Based on the application demand, different sensor systems have been employed for the collection of the data. Each sensor system brings their own set of advantages and disadvantages. In the last 20 years, immense work has been carried out using Fiber Bragg grating (FBG) sensors for the SHM applications. FBG sensors are light in weight, easy to multiplex, electro-magnetically neutral and may be embedded in structures. Hence are seen as ideal sensor for structural health monitoring (SHM).
The work presented here covers the wide range of SHM techniques using FBG sensor that may be used for damage detection and SHM. The talk includes an overview of techniques including vibration based, strain based and ultrasonic guided waves based techniques making use of FBG sensors. The talk also covers aspect on the optimization of sensor placement.
Bio:
Dr. Rohan Soman has a background in Structural Engineering. He completed his bachelor studies in Mechanical Engineering at the University of Pune, India and obtaining his Master degree in Engineering Design with research in the area of damage detection in 2010 from the University of Manchester, UK.
From November 2010 – June 2013 he was working as a Marie Curie Early Stage Researcher in the frame of EU-FP7 project in the Structural Health Monitoring (SHM) of Long Span Bridge structures with primary interest in vibration based damage detection techniques and optimization of sensor placements. He later joined the department of intelligent structures at the Institute of Fluid Flow Machinery, Polish Academy of Sciences (IMP PAN), where he secured his PhD in Mechanics in October 2016. He currently works as an Adiunkt (Assistant Professor) in the Mechanics of Intelligent Structure Department at IMP PAN
His current scientific interest is mainly focused on:
- Guided wave-based damage detection using FBG sensors,
- Optimization of sensor placement for different SHM applications,
- Strain based SHM using FBG sensors,
- Vibration based SHM in offshore structures,
- Electromechanical impedance technique,
- Baseline free damage detection in structures.
He is the Principal Investigator of NCN Project Opus and Sonata which focus on the use of FBG sensors for GW sensing in composite and metallic structure. He is also the co-investigator in the Alphorn project in collaboration with ETH Zurich. In the past he has led and been a part of several teams for other project proposals at the EU and National level.
He actively publishes research articles in top peer reviewed journals and has more than 30 journal papers and more than 40 papers in conference proceedings.
He has been awarded with prestigious Start fellowship in 2018 (For top researchers under the age of 30) and also the ministry stipend for outstanding early stage researchers in Poland (less than 7 years after PhD).
He has been a reviewer for more than 30 different journals from the JCR list, and also served as a guest editor for 2 different journals. He works actively for the popularization of science and has served as the Chair of Polish Chapter of the Marie Curie Alumni association from (2017-2021).