Interests
Structural dynamics
Random vibrations
Structural system identification
Structural health monitoring studies
Structural reliability analysis and updating
Dynamic state estimation
Performance based earthquake engineering
Vehicle-pavement interaction studies
Digital image correlation
Tire-pavement interaction noise
Uncertainty modelling and quantification
Sponsored projects:
· As PI
Title of the project: Force identification in existing structures
Funding agency: DST, New Delhi, India
Duration: 5 years (2014-2020)
Budget: Rs. 35 lakhs
Description: The project involves developing algorithms for force identification in existing structures. Typically, Bayesian filtering tools are being employed to develop efficient algorithms to identify the input to a system.
Consultancy projects:
Title of the project: Evaluation of structural design adequacy for bridge piers of flyovers
Funding agency – L&T, India
Duration – 3 months
Budget – Rs. 10 lakhs
Workshop participation:
International workshop on emerging trends in earthquake engineering and structural dynamics, SEC 2014, 20th -21st December 2014, Organized by International Association for Structural Engineering at IIT Delhi, India.
National workshop on NBC 2016 and Recently revised seismic codes – impact on design, construction and safety of built structures, 8th – 9th December 2017, Organized at Institution of Engineers India (IEI), Kolkata, West Bengal, India.
Pre-conference workshop on Playing with numbers: Monte Carlo Simulations in Structural Mechanics, INCAM 2019, 2nd July 2019, IISc Bangalore, India.
Publications
Journal papers (published):
S Sadikbasha, Y B Subrahmanyam, V Pandurangan and B Radhika, 2024, Computational homogenization for dynamic characterization of a square cellular honeycomb vibration energy harvester. Structures, 63, 106269.
B Radhika and Vishala Pannala, 2023, Study of dynamic characteristics of air cavity resonances from tyre-pavement interaction noise using single frequency filtering, Journal of Acoustical Society of America JASA, 153 (5).
B Radhika, 2023, Study of dynamic characteristics of tread impact excitation from tyre-pavement interaction noise (TPIN) of a two-wheeler. Applied Acoustics, 207, 109351.
M Supreeth, V Pandurangan and , B Radhika, 2023, Displacement estimation using a modified seed prediction algorithm in digital image correlation, Sadhana, 48:13.
Shaik Sadikbasha, B. Radhika and V. Pandurangan, 2022, Auxetic hexachiral cantilever beams for piezoelectric energy harvesting, Smart Materials and Structures, 31, 105015.
B Radhika, Vishala Pannalab, Sudhanshu Singha, Sriram Sundar, Krishna Prapoorna Biligiria, 2022, Time-Frequency Analysis of Acoustic Signals from Tyre-Pavement Interaction, Journal of Acoustical Society of America JASA, 151 (1).
B Radhika, S Sundar and K P Biligiri, 2021, Analysis of Vibro-Acoustic Path for Quantification of Tire-Pavement Interaction Noise Using a Two-Wheeler. Journal of Testing and Evaluation, ASTM International, 50(1).
M Supreeth, B Radhika and V Pandurangan, 2021, Uncertainty quantification in full-field displacement and strain responses of materials using Kalman filter, Materials Today Communications, 26:101875.
G R Mahajan, B Radhika and K P Biligiri, 2020, A critical review of vehicle-pavement interaction mechanism in evaluating flexible pavement performance characteristics. Road Materials and Pavement Design,1-35.
B Radhika and C S Manohar, 2013, Dynamic state estimation for identifying earthquake support motions in instrumented structures, Earthquakes and Structures, Techno Press, 5(3), 359-378.
B Radhika and C S Manohar, 2012, Nonlinear dynamic state estimation in instrumented structures with conditionally linear Gaussian substructures, Probabilistic Engineering Mechanics, 30, 89-103.
B Radhika and C S Manohar, 2011, Updating response sensitivity models of nonlinear vibrating structures using particle filters, Computers and Structures, 89(11-12), 901-911.
B Radhika and C S Manohar, 2010, Reliability models for existing structures based on dynamic state estimation and data based asymptotic extreme value analysis, Probabilistic Engineering Mechanics, 25(4), 393-405.
B Radhika, S S Panda and C S Manohar, 2008, Time variant reliability analysis of nonlinear structural dynamical systems using combined Monte Carlo simulations and asymptotic extreme value theory, Computer Modeling in Engineering and Sciences, 27(1-2), 79-110.
Book chapter:
H A Nasrellah, B Radhika, V S Sundar, and C S Manohar, 2011, Simulation based methods for model updating in structural condition assessment, in Health Assessment of Engineered Structures: Bridges, Buildings and Other Infrastructures, Edited by A Haldar, World Scientific, Singapore.
A S Nisha, S Abhinav, V S Sundar, B Radhika and C S Manohar, 2022, Efficient Simulation-Based Bayesian Methods for Structural Condition Assessment, in Recent Developments in Structural Health Monitoring and Assessment — Opportunities and Challenges Bridges, Buildings and Other Infrastructures, Edited by A Haldar and A Al-Hussein, World Scientific, Singapore.
Conference presentations:
Rahul K, V Pandurangan and B Radhika, 2022, A machine learning framework for nonlinear material parameter identification, 5th Indian Conference on Applied Mechanics (INCAM) 2022, NIT Jamshedpur, 11– 13 November 2022.
Shaik Sadikbasha, B. Radhika and V. Pandurangan, 2022, Nonlinear auxetic cantilever beams for piezoelectric vibration energy harvesting under random loading, 2nd International Conference on Materials for Humanity (MH 22), organised by the Materials Research Society of Singapore, 19th – 21st September 2022, National University of Singapore.
Gauri R Mahajan, B Radhika and B K Prapoorna, 2022, Quantification of Material Uncertainty in Rutting Estimation of Asphalt Pavements using the Fixed Vehicle Approach, Transportation Research Board (TRB) 101st Annual Meeting, January 9–13, 2022, Washington, D.C., USA.
Gauri R Mahajan, B Radhika and B K Prapoorna, 2021, Influence of Dynamic Analysis on Estimation of Rutting Performance Using the Fixed Vehicle Approach, 18th IRF World Meeting & Exhibition November 7-10, 2021 – Dubai, UAE
S Sundar and B Radhika, 2021, Development of an Experimental Relationship between Tire-Pavement Interaction Noise and Vibration Response of a Two-Wheeler, International Conference on Resource Sustainability - Sustainable Pavement Technologies (icRS SPT 2021), 26-27 May, 2021, IIT Tirupati.
M. Supreeth, B. Radhika and V. Pandurangan, 2020, A model based approach for initial guess prediction in digital image correlation, 65th Congress of Indian Society of Theoretical and Applied Mechanics (ISTAM), 9 -11 December, 2020, GITAM (Deemed to be University), Hyderabad.
S Singh, B Radhika, S Sundar and K P Biligiri, 2019, Study of Tire-Pavement Noise Generation Mechanism using a Two-Wheeler, Internoise 2019, 16-19 June 2019, Madrid, Spain.
K Narender and B Radhika, 2018, Estimation of multi-variate demand curves of correlated demand parameters, SEC 2018, Jadhavpur University Kolkata.
B Radhika, 2018, Reliability estimation using conditional Gaussian sub-structuring, 13th International conference on Computational Structures Technology (CST), 4-6 September 2018, Barcelona, Spain.
Mayur P Agarwal, B Radhika and G Mondal, 2017, Estimation of fragility curves using IDA, ICCMS 2017, IIT Hyderabad.
G Bharath Reddy and B Radhika, 2016, Evaluation of IS-1893 based design using the performance based earthquake engineering framework, SEC 2016, SERC Chennai.
Venkat Manoj and B Radhika, 2016, Evaluation of a code based RC frame design using hypothesis testing and extreme value analysis, ICRAMM-2016, VSSUT Burla.
B Radhika, 2015, Force identification by comparing the likelihood function, 12th International conference on application of probability and statistics in Civil Engineering, ICASP12, 12-15 July 2015, Vancouver, Canada.
S Sen, B Radhika and B Bhattacharya, 2014, Identification of Bouc-Wen model parameters using Extended Kalman filter with adaptive process and measurement covariance matrices, International conference on theoretical, applied, computational and experimental mechanics, ICTACEM 2014, 27-29 December 2014, IIT Kharagpur, India.
B Radhika and C S Manohar, 2011, Structural dynamic state estimation using probabilistic substructuring strategies, 21st International Conference on Structural Mechanics in Reactor Technology, SMiRT 21 (Editors: B K Dutta, R K Singh, and P V Durgaprasad), IASMiRT, 6th -11th November, 2011, New Delhi, India, 2, 987-988.
B Radhika and C S Manohar, 2011, Updating response sensitivity models of nonlinear vibrating structures using particle filters, Proceedings of Sixth M.I.T Conference on computation fluid and solid mechanics: Focus: Solids and Structures (Editor: K J Bathe), Elsevier, 15th -17th June, 2011, M.I.T Cambridge, USA.