Browse by Fellow

Mudapaka, Vinay ; Gantala, Thulsiram ; Balasubramanian, Krishnan (2025) Development of bulk wave EMAT sensors with enhanced Lorentz force through magnetic field concentration in eddy current regions Ultrasonics, 154 . p. 107687. ISSN 0041-624X

Gantala, Thulsiram ; Balasubramanian, Krishnan (2025) Ultrasonic imaging technique for NDE: arbitrary virtual array source aperture with using sign coherence factor Journal of Nondestructive Evaluation, 44 (3). ISSN 0195-9298

Purayil, Sruthi Krishna Kunji ; Aroliveetil, Sachinlal ; Chaturvedi, Adarsh ; Balasubramanian, Krishnan (2025) Simulation-assisted Multimodal Deep Learning (Sim-MDL) fusion models for the evaluation of thermal barrier coatings using infrared thermography and terahertz imaging Research Square . ISSN 2693-5015

Unnikrishnakurup, Sreedhar ; Kidangan, Renil Thomas ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan ; Ngo, Andrew (2025) Assessment of fiber orientation and order in carbon fiber reinforced polymer composites using induction thermography and Radon transform analysis Composites Part B: Engineering, 296 . p. 112224. ISSN 1359-8368

Pandit, Rahul Kumar ; Khan, Ainulla ; Balasubramanian, Krishnan ; Srinivasan, Balaji ; Rajagopal, Prabhu (2025) Defect identification using sampling and outlier analysis in passive guided wave structural health monitoring Journal of Intelligent Material Systems and Structures, 36 (8). pp. 543-560. ISSN 1045-389X

Kunji Purayil, Sruthi Krishna ; Balasubramanian, Krishnan (2024) Data-driven AI for the automated classification of the isothermal heat-treated thermal barrier coatings using pulsed infrared thermography Journal of Physics D: Applied Physics, 58 (4). 045306. ISSN 0022-3727

Bhemani, Nishi ; Gantala, Thulsiram ; Balasubramanian, Krishnan (2024) Data-driven simulation-assisted-Physics learned AI (DPAI) for heat diffusion in large grain polycrystalline materials Physica Scripta, 99 (8). 086008. ISSN 0031-8949

Kanakambaran, Krishnadas V ; Balasubramanian, Krishnan (2024) Frequency sweep study on the generation of dual-mode second harmonics (DMSH) on an isotropic nonlinear elastic cylindrical rod by T(0,1) mode Journal of Sound and Vibration, 579 . p. 118374. ISSN 0022-460X

P.L., Sudharsan ; Gantala, Thulsiram ; Balasubramanian, Krishnan (2024) Multi modal data fusion of PAUT with thermography assisted by Automatic Defect Recognition System (M-ADR) for NDE Applications NDT & E International, 143 . p. 103062. ISSN 0963-8695

Puthiyaveettil, Nithin ; Kumar, Jalaj ; Balasubramanian, Krishnan (2024) High-resolution induction thermography for detection of micro-cracks in Ti-6Al-4V alloys Quantitative InfraRed Thermography Journal, 22 (2). pp. 134-154. ISSN 1768-6733

Kidangan, Renil Thomas ; Unnikrishnakurup, Sreedhar ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan (2024) Uncovering the hidden structure: A study on the feasibility of induction thermography for fiber orientation analysis in CFRP composites using 2D-FFT Composites Part B: Engineering, 269 . p. 111107. ISSN 1359-8368

Subhash, N. N. ; Muraleedharan, C. V. ; Balasubramanian, Krishnan (2024) Nondestructive evaluation of mechanical heart valve disc thickness degradation due to accelerated durability test using THz-TDS measurements Nondestructive Testing and Evaluation, 39 (8). pp. 2406-2425. ISSN 1058-9759

Kidangan, Renil Thomas ; Unnikrishnakurup, Sreedhar ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan (2024) Induction thermography for unidirectional CFRP composites: A novel inspection approach through global current path integration Composite Structures, 327 . p. 117678. ISSN 0263-8223

Suresh, Nived ; Balasubramanian, Krishnan (2023) Cut-off thickness identification of defects with single and two-step geometries using SH1 mode conversion Journal of Nondestructive Evaluation, 43 (1). ISSN 0195-9298

Kumar, B Nidheesh ; Kumar, M C Santhosh ; Latha, A Mercy ; Aroliveetil, Sachinlal ; Nallaperumal, M ; Balasubramanian, Krishnan ; Remakanthan, S ; Moideenkutty, K K ; Nair, Shyam S ; Mohan Kumar, L (2023) Thickness measurement of polychlorotrifluoroethylene coating over metallic seal using terahertz time-domain spectroscopy Nondestructive Testing and Evaluation, 39 (7). pp. 1869-1885. ISSN 1058-9759

Aroliveetil, Sachinlal ; Puthiyaveetil, Nithin ; Balasubramanian, Krishnan (2023) Nondestructive evaluation of aircraft stealth coating by Terahertz-time domain spectroscopy: experimental and numerical investigation Nondestructive Testing and Evaluation, 39 (6). pp. 1517-1540. ISSN 1058-9759

Kumar, S. R. Sandeep ; Ramachandran, Vineeth P. ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2023) Graded elastic waveguide metamaterial rod for up-conversion of longitudinal axisymmetric guided ultrasonic wave modes IEEE Open Journal of Ultrasonics, Ferroelectrics, and Frequency Control, 3 . pp. 157-165. ISSN 2694-0884

Gantala, Thulsiram ; P.L., Sudharsan ; Balasubramanian, Krishnan (2023) Improved imaging technique for nondestructive evaluation using arbitrary virtual array source aperture (AVASA) NDT & E International, 138 . p. 102869. ISSN 0963-8695

Gantala, Thulsiram ; Gurunathan, Mohan Raj ; Balasubramanian, Krishnan (2023) Arbitrary virtual array source aperture (AVASA) ultrasound imaging technique using phased array excitation Journal of Nondestructive Evaluation, 42 (3). ISSN 0195-9298

Balachandran, Akhil ; Balasubramanian, Krishnan (2023) Quality assessment of adhesive joints using third harmonics of fundamental shear horizontal wave mode Journal of Vibration and Control, 31 (3-4). pp. 248-257. ISSN 1077-5463

Puthusseri, Renjith ; Balasubramanian, Krishnan (2023) Lowest remnant thickness estimation using Staircase Magnetostrictive Patch (ScaMP) Transducer NDT & E International, 136 . p. 102811. ISSN 0963-8695

Sankar, Vetrivel ; Balasubramanian, Krishnan ; Sundara, Ramaprabhu (2023) Design framework for polymer nanocomposite flexible strain sensor adhesive tape IEEE Journal on Flexible Electronics, 2 (3). pp. 265-273. ISSN 2768-167X

Sankar, Vetrivel ; Balasubramanian, Krishnan ; Sundara, Ramaprabhu (2023) Prosopis juliflora: invasive alien plant species derived biomass carbon and its application in hazardous NO₂ gas sensing Journal of Materials Science: Materials in Electronics, 34 (9). ISSN 0957-4522

Abraham, Saju T. ; Mouni, C. Teena ; Albert, S. K. ; Sagdeo, A. ; Balasubramanian, Krishnan ; Venkatraman, B. (2023) An experimental investigation on the combined effect of plastic deformation and grain size variation on the acoustic nonlinearity parameter Review of Scientific Instruments, 94 (2). ISSN 0034-6748

Gantala, Thulsiram ; Balasubramanian, Krishnan (2023) Optimizing hyperparameters of Data-driven simulation-assisted-Physics learned AI (DPAI) model to reduce compounding error Ultrasonics, 128 . p. 106863. ISSN 0041-624X

Kidangan, Renil Thomas ; Unnikrishnakurup, Sreedhar ; Krishnamurthy, Chitti Venkata ; Balasubramanian, Krishnan (2022) The influence of interlaminar microstructure on the induction heating patterns of CFRP laminates Materials Today Communications, 33 . p. 104338. ISSN 2352-4928

Sethy, D ; Kumar S R, Sandeep ; Balasubramanian, Krishnan (2022) Crack monitoring potential of smart graphene nanoplatelet (GNP)- doped Poly (methyl methacrylate) (PMMA) spray-coated sensor compared to conventional ultrasound in simple structures Journal of Nondestructive Evaluation, 41 (4). ISSN 0195-9298

Abraham, Saju T. ; Mohan, Manju ; Chelliah, Pandian ; Balasubramanian, Krishnan ; Venkatraman, B (2022) A machine learning approach to nonlinear ultrasonics for classifying annealing conditions in austenitic stainless steel Journal of Applied Physics, 132 (11). ISSN 0021-8979

Latha, A. Mercy ; Unnikrishnakurup, Sreedhar ; Jain, Abhinandan ; Pathra, M. K. ; Balasubramanian, Krishnan (2022) Material characterization and thickness measurement of iron particle reinforced polyurethane multi-layer coating for aircraft stealth applications using THz-time domain spectroscopy Journal of Infrared, Millimeter, and Terahertz Waves, 43 (7-8). pp. 582-597. ISSN 1866-6892

K P, Sruthi Krishna ; Puthiyaveettil, Nithin ; Chakravarthy V, Srinivasa ; Balasubramanian, Krishnan (2022) Simulation-assisted AI for the evaluation of thermal barrier coatings using pulsed infrared thermography Journal of Applied Physics, 132 (6). ISSN 0021-8979

Puthiyaveettil, Nithin ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2022) Laser spot thermography for defect detection on mild steel at higher temperatures (30–600 °C) Journal of Applied Physics, 132 (4). ISSN 0021-8979

Ghose, Bikash ; Panda, Rabi S ; Balasubramanian, Krishnan (2022) A study on the use of fundamental antisymmetric-like guided wave for health monitoring of elastic–viscoelastic bilayer structures Structural Health Monitoring, 22 (2). pp. 1193-1210. ISSN 1475-9217

Sethy, D. ; Balasubramanian, Krishnan (2022) Graphene nano-platelet (GNP)–doped poly (methyl methacrylate) (PMMA) spray-coated piezoresistive-based 2D strain sensor under temperature environment on aluminium alloy 2024-T351 Journal of Nanoparticle Research, 24 (6). ISSN 1388-0764

Sethy, Debadatta ; Balasubramanian, Krishnan (2022) Smart graphene nanoplatelet strain sensor for natural frequency sensing of stainless steel (SS304) and human health monitoring Materials, 15 (11). p. 3924. ISSN 1996-1944

Suresh, Nived ; Balasubramanian, Krishnan (2022) Remnant thickness quantification in small thickness structures utilising the cut-off property of A1 Lamb wave mode employing linear array elements Journal of Applied Physics, 131 (17). ISSN 0021-8979

Gantala, Thulsiram ; Balasubramanian, Krishnan (2022) DPAI: A Data-driven simulation-assisted-Physics learned AI model for transient ultrasonic wave propagation Ultrasonics, 121 . p. 106671. ISSN 0041-624X

Davis, Geo ; Koodalil, Dileep ; Palanisamy, Suresh ; Nagarajah, Romesh ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2022) Influence of duty ratio of a pattern source on laser generation of Lamb waves NDT & E International, 127 . p. 102605. ISSN 0963-8695

Ghose, Bikash ; Panda, Rabi Sankar ; Balasubramanian, Krishnan (2021) Guided A0 wave mode interaction with interfacial disbonds in an elastic-viscoelastic bilayer structure NDT & E International, 124 . p. 102543. ISSN 0963-8695

Kanakambaran, Krishnadas V. ; Balasubramanian, Krishnan (2021) Observing dual-mode second-harmonic generation in an isotropic nonlinear elastic plate Ultrasonics, 117 . p. 106525. ISSN 0041-624X

Sai, Makireddi ; Sethy, Debadatta ; Francis, Sanal ; Kumar, M. S. Yogendra ; Varghese, Francis V. ; Balasubramanian, Krishnan (2021) Optical properties of multilayer graphene nanoplatelet (mGNP)/poly(methyl methacrylate) (PMMA) composite flexible thin films prepared by solvent casting Journal of Materials Science: Materials in Electronics, 32 (22). pp. 26750-26757. ISSN 0957-4522

Chilukuri, Aditya ; Raja, Nishanth ; Balasubramanian, Krishnan (2021) In-situ pitting corrosion detection using high-frequency T(0,1) guided wave mode in gas distribution tubes at operating temperatures Journal of Structural Integrity and Maintenance, 6 (4). pp. 247-256. ISSN 2470-5314

Sethy, D. ; Sai, M. ; Varghese, F. V. ; Balasubramanian, Krishnan (2021) Improved thermal signature of composite beams with gnp smart skin for defect investigation Journal of Nondestructive Evaluation, 40 (3). ISSN 0195-9298

Kidangan, Renil Thomas ; Krishnamurthy, Chitti Venkata ; Balasubramanian, Krishnan (2021) Identification of the fiber breakage orientation in carbon fiber reinforced polymer composites using induction thermography NDT & E International, 122 . p. 102498. ISSN 0963-8695

Shankar, Siddharth ; Balasubramanian, Krishnan (2021) Beam forming of shear horizontal guided waves by multi-row staggered magnet configurations Ultrasonics, 114 . p. 106405. ISSN 0041-624X

Shankar, Siddharth ; Balasubramanian, Krishnan (2021) Characterising the beam formation of SH waves using double-row Staggered Halbach EMAT configurations NDT & E International, 121 . p. 102465. ISSN 0963-8695

Koodalil, Dileep ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2021) Quantifying adhesive thickness and adhesion parameters using higher-order SH guided waves Ultrasonics, 114 . p. 106429. ISSN 0041-624X

S R, Sandeep Kumar ; V K, Krishnadas ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2021) Waveguide metamaterial rod as mechanical acoustic filter for enhancing nonlinear ultrasonic detection APL Materials, 9 (6). ISSN 2166-532X

Puthiyaveettil, Nithin ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2021) Influence of absorptivity of the material surface in crack detection using laser spot thermography NDT & E International, 120 . p. 102438. ISSN 0963-8695

Reddy, Sri Harsha K. ; Vasudevan, Achuth ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2021) Scattering of Higher Order Mode Clusters (HOMC) from surface breaking notches in plates with application to higher temperature gradients NDT & E International, 120 . p. 102441. ISSN 0963-8695

Sankar, Vetrivel ; Balasubramanian, Krishnan ; Sundara, Ramaprabhu (2021) Insights into the effect of polymer functionalization of multiwalled carbon nanotubes in the design of flexible strain sensor Sensors and Actuators A: Physical, 322 . p. 112605. ISSN 0924-4247

Gantala, Thulsiram ; Balasubramanian, Krishnan (2021) Automated defect recognition for welds using simulation assisted TFM imaging with artificial intelligence Journal of Nondestructive Evaluation, 40 (1). ISSN 0195-9298

Gamdha, Dhruv ; Unnikrishnakurup, Sreedhar ; Rose, K. J. Jyothir ; Surekha, M. ; Purushothaman, Padma ; Ghose, Bikash ; Balasubramanian, Krishnan (2021) Automated defect recognition on X-ray radiographs of solid propellant using deep learning based on convolutional neural networks Journal of Nondestructive Evaluation, 40 (1). ISSN 0195-9298

Gupta, Murikipudi V. N. Surendra ; Ameen, Elikkottil ; Unnikrishnakurup, Sreedhar ; Balasubramanian, Krishnan ; Veeraragavan, Ananthanarayanan ; Pesala, Bala (2021) Spectral filtering of sub-bandgap radiation using all-dielectric gratings for thermophotovoltaic applications Journal of Photonics for Energy, 11 (01). ISSN 1947-7988

Shankar, Siddharth ; Balasubramanian, Krishnan (2021) Characterizing Halbach EMAT Configurations for SH0 Ultrasonic Waves IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 68 (5). pp. 1866-1875. ISSN 0885-3010

Raja, Nishanth ; Balasubramanian, Krishnan (2021) Experimental study on dispersion effects of F (1,1) wave mode on thin waveguide when embedded with fluid Sensors, 21 (2). p. 322. ISSN 1424-8220

Koodalil, Dileep ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2021) Bond stiffness estimation with shear horizontal guided waves generated using PPM-EMATs International Journal of Adhesion and Adhesives, 104 . p. 102761. ISSN 0143-7496

Puthiyaveettil, Nithin ; Renil Thomas, K. ; Myrach, Philipp ; Ziegler, Mathias ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2020) Defect detection in steel bars up to 600 °C using laser line thermography Infrared Physics & Technology, 111 . p. 103565. ISSN 1350-4495

Unnikrishnakurup, Sreedhar ; Dash, Jyotirmayee ; Ray, Shaumik ; Pesala, Bala ; Balasubramanian, Krishnan (2020) Nondestructive evaluation of thermal barrier coating thickness degradation using pulsed IR thermography and THz-TDS measurements: A comparative study NDT & E International, 116 . p. 102367. ISSN 0963-8695

Suresh, Nived ; Balasubramanian, Krishnan (2020) Quantifying the lowest remnant thickness using a novel broadband wavelength and frequency EMAT utilizing the cut-off property of guided waves NDT & E International, 116 . p. 102313. ISSN 0963-8695

Sikundalapuram Ramesh, S.K. ; Chitnaduku Thippeswamy, M. ; Rajagopal, P. ; Balasubramanian, Krishnan (2020) Elastic metamaterial rod for mode filtering in ultrasonic applications Electronics Letters, 56 (19). pp. 1024-1027. ISSN 0013-5194

Davis, Geo ; Balasubramanian, Krishnan ; Palanisamy, Suresh ; Nagarajah, Romesh ; Rajagopal, Prabhu (2020) Additively manufactured integrated slit mask for laser ultrasonic guided wave inspection The International Journal of Advanced Manufacturing Technology, 110 (5-6). pp. 1203-1217. ISSN 0268-3768

Kidangan, Renil Thomas ; Krishnamurthy, Chitti Venkata ; Balasubramanian, Krishnan (2020) Detection of dis-bond between honeycomb and composite facesheet of an Inner Fixed Structure bond panel of a jet engine nacelle using infrared thermographic techniques Quantitative InfraRed Thermography Journal, 19 (1). pp. 12-26. ISSN 1768-6733

Mini, R. S. ; Ravindran, P. ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2020) Experimental and numerical investigation of second harmonic generation by creep induced micro-voids Experimental Mechanics, 60 (7). pp. 1017-1032. ISSN 0014-4851

Koodalil, Dileep ; Barnoncel, David ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2020) Detection of interfacial weakness in a lap-shear joint using shear horizontal guided waves NDT & E International, 112 . p. 102248. ISSN 0963-8695

Sankar, Vetrivel ; Nambi, Ashwin ; Bhat, Vivek Nagendra ; Sethy, Debadatta ; Balasubramanian, Krishnan ; Das, Sumitesh ; Guha, Mriganshu ; Sundara, Ramaprabhu (2020) Waterproof flexible polymer-functionalized graphene-based piezoresistive strain sensor for structural health monitoring and wearable devices ACS Omega, 5 (22). pp. 12682-12691. ISSN 2470-1343

Abraham, Saju T. ; Shivaprasad, S. ; Das, C. R. ; Albert, S. K. ; Venkatraman, B. ; Balasubramanian, Krishnan (2020) Effect of grain size distribution on the acoustic nonlinearity parameter Journal of Applied Physics, 127 (18). ISSN 0021-8979

Abraham, Saju T. ; Shivaprasad, S. ; Das, C.R. ; Albert, S. K. ; Venkatraman, B. ; Balasubramanian, Krishnan (2020) Characterisation of heterogeneous microstructure in large forged products using nonlinear ultrasonic method Materials Science and Technology, 36 (6). pp. 699-708. ISSN 0267-0836

Puthiyaveettil, Nithin ; Thomas, K Renil ; Unnikrishnakurup, Sreedhar ; Myrach, Philipp ; Ziegler, Mathias ; Balasubramanian, Krishnan (2020) Laser line scanning thermography for surface breaking crack detection : modeling and experimental study Infrared Physics & Technology, 104 . p. 103141. ISSN 1350-4495

Jayakumar, Arjun ; Balachandran, Akhil ; Mani, A. ; Balasubramanian, Krishnan (2019) Falling film thickness measurement using air-coupled ultrasonic transducer Experimental Thermal and Fluid Sciencs, 109 . p. 109906. ISSN 0894-1777

Sethy, D ; Makireddi, S ; Varghese, F V ; Balasubramanian, Krishnan (2019) Passive thermo-elastic behaviour of surface enhanced glass-epoxy composites with spray coated graphene nanoplatelets (GNP) Materials Research Express, 6 (12). p. 125044. ISSN 2053-1591

Abraham, Saju T. ; Shivaprasad, S. ; Sreevidya, N. ; Das, C. R. ; Albert, S. K. ; Venkatraman, B. ; Balasubramanian, Krishnan (2019) A novel multi-frequency nonlinear ultrasonic approach for the characterization of annealed polycrystalline microstructure Metallurgical and Materials Transactions A, 50 (12). pp. 5567-5573. ISSN 1073-5623

Metya, Avijit Kr ; Das, Anindya ; SoumitraTarafder, ; Balasubramanian, Krishnan (2019) Nonlinear Lamb wave for the evaluation of creep damage in modified 9Cr–1Mo steel NDT & E International, 107 . p. 102130. ISSN 0963-8695

Puthiyaveettil, Nithin ; Renil Thomas, K ; Unnikrishnakurup, Sreedhar ; Prabhakar, K. V. Phani ; Padmanabham, G. ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2019) Numerical model and experimental validation for online monitoring of cold metal transfer joining of aluminium to galvanized steel The International Journal of Advanced Manufacturing Technology, 104 (9-12). pp. 4365-4375. ISSN 0268-3768

Shivaprasad, S. ; Krishnamurthy, C. V. ; Pandala, Abhishek ; Saini, Anuraag ; Ramachandran, Adithya ; Balasubramanian, Krishnan (2019) Numerical modelling methods for ultrasonic wave propagation through polycrystalline materials Transactions of the Indian Institute of Metals, 72 (11). pp. 2923-2932. ISSN 0972-2815

Syed Akbar Ali, Mohamed Subair ; Amireddy, Kiran Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2019) Characterization of deep sub-wavelength sized horizontal cracks using holey-structured metamaterials Transactions of the Indian Institute of Metals, 72 (11). pp. 2917-2921. ISSN 0972-2815

Vijay, Chaitanya ; Raguvarun, K. ; Bharghav, K. V. S. ; Balasubramanian, Krishnan ; Ramakrishna, P. A. (2019) Use of X‐ray computed tomography for validation of random packs of composite solid propellants Propellants, Explosives, Pyrotechnics, 44 (7). pp. 915-922. ISSN 0721-3115

Raja, Nishanth ; Balasubramanian, Krishnan ; Periyannan, Suresh (2019) Ultrasonic waveguide based level measurement using flexural mode F(1,1) in addition to the fundamental modes Review of Scientific Instruments, 90 (4). ISSN 0034-6748

Chandraprakash, C. ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2019) Thermomechanical phenomenon: A non-destructive evaluation perspective Transactions of the Indian Institute of Metals, 72 (11). pp. 2905-2915. ISSN 0972-2815

Davis, Geo ; Nagarajah, Romesh ; Palanisamy, Suresh ; Rashid, Rizwan Abdul Rahman ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2019) Laser ultrasonic inspection of additive manufactured components The International Journal of Advanced Manufacturing Technology, 102 (5-8). pp. 2571-2579. ISSN 0268-3768

Panda, Rabi Sankar ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2018) Rapid guided wave inspection of complex stiffened composite structural components using non-contact air-coupled ultrasound Composite Structures, 206 . pp. 247-260. ISSN 0263-8223

Shivaprasad, S. ; Pandala, Abhishek ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2018) Wave localized finite-difference-time-domain modelling of scattering of elastic waves within a polycrystalline material The Journal of the Acoustical Society of America, 144 (6). pp. 3313-3326. ISSN 0001-4966

Ray, Pabitro ; Srinivasan, Balaji ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2018) Monitoring pipe wall integrity using fiber Bragg grating-based sensing of low-frequency guided ultrasonic waves Ultrasonics, 90 . pp. 120-124. ISSN 0041-624X

Amireddy, Kiran Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2018) Porous metamaterials for deep sub-wavelength ultrasonic imaging Applied Physics Letters, 113 (12). ISSN 0003-6951

Perumal, Mahesh Raja ; Balasubramanian, Krishnan ; Arunachalam, Kavitha (2018) Study of the choice of excitation frequency for sub surface defect detection in electrically thick conducting specimen using eddy current testing Journal of Nondestructive Evaluation, 37 (4). ISSN 0195-9298

Metya, Avijit Kr ; Tarafder, Soumitra ; Balasubramanian, Krishnan (2018) Nonlinear Lamb wave mixing for assessing localized deformation during creep NDT & E International, 98 . pp. 89-94. ISSN 0963-8695

Raja, Nishanth ; Balasubramanian, Krishnan ; Periyannan, Suresh (2018) Ultrasonic waveguide-based multi-level temperature sensor for confined space measurements IEEE Sensors Journal, 18 (14). pp. 5699-5706. ISSN 1530-437X

Shivaprasad, S. ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2018) Modeling and simulation of ultrasonic beam skewing in polycrystalline materials International Journal of Advances in Engineering Sciences and Applied Mathematics, 10 (1). pp. 70-78. ISSN 0975-0770

Antony Jacob, Ashish ; Balasubramanian, Krishnan ; Rajagopal, Prabhu ; Jeyaseelan, Antony ; Dutta, Soma ; Kumar, Anish ; Rao, B. Purnachandra ; Tammana, Jayakumar (2018) Ultrasonic transducers based on spray coated PZT film for in situ operation for temperatures up to 200 °C ISSS Journal of Micro and Smart Systems, 7 (1). pp. 25-34. ISSN 2509-7989

Syed Akbar Ali, Mohamed Subair ; Kumar, Anish ; Rao, Purnachandra B. ; Tammana, Jayakumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2018) Bayesian synthesis for simulation-based generation of probability of detection (PoD) curves Ultrasonics, 84 . pp. 210-222. ISSN 0041-624X

Antony Jacob, A. ; Rajagopal, P. ; Balasubramanian, Krishnan (2018) Selective modal excitation for optimization of waveguide based bulk ultrasonic transducers NDT & E International, 94 . pp. 47-55. ISSN 0963-8695

Basheer, C M ; Krishnamurthy, C V ; Balasubramanian, Krishnan (2017) Hot-rod thermography for defect detection Insight - Non-Destructive Testing and Condition Monitoring, 59 (9). pp. 484-490. ISSN 1354-2575

Vimalan, Deepesh ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2017) Reflection and mode conversion of fundamental torsional guided wave mode from lack of bonding in induction pressure welding Journal of Pressure Vessel Technology, 139 (6). ISSN 0094-9930

Amireddy, Kiran Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2017) Deep subwavelength ultrasonic imaging using optimized holey structured metamaterials Scientific Reports, 7 (1). ISSN 2045-2322

Nishanth, R ; Lingadurai, K ; Periyannan, S ; Balasubramanian, Krishnan (2017) Ultrasonic waveguide-based distributed temperature measurement on a solid surface Insight - Non-Destructive Testing and Condition Monitoring, 59 (7). pp. 358-363. ISSN 1354-2575

Basheer, C.M. ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan (2017) Hot-rod thermography for in-plane thermal diffusivity measurement Measurement, 103 . pp. 235-240. ISSN 0263-2241

Periyannan, Suresh ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2017) Multiple temperature sensors embedded in an ultrasonic "spiral-like" waveguide AIP Advances, 7 (3). ISSN 2158-3226

Periyannan, Suresh ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2017) Ultrasonic bent waveguides approach for distributed temperature measurement Ultrasonics, 74 . pp. 211-220. ISSN 0041-624X

Thomas, K. Renil ; Unnikrishnakurup, Sreedhar ; Nithin, P. V. ; Balasubramanian, Krishnan ; Rajagopal, Prabhu ; Prabhakar, K. V. Phani ; Padmanabham, G. ; Riedel, Frank ; Puschmann, Markus (2016) Online monitoring of cold metal transfer (CMT) process using infrared thermography Quantitative InfraRed Thermography Journal, 14 (1). pp. 68-78. ISSN 1768-6733

Ray, Pabitro ; Rajagopal, Prabhu ; Srinivasan, Balaji ; Balasubramanian, Krishnan (2016) Feature-guided wave-based health monitoring of bent plates using fiber Bragg gratings Journal of Intelligent Material Systems and Structures, 28 (9). pp. 1211-1220. ISSN 1045-389X

Manogharan, Prabhakaran ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2016) Longitudinal guided waves confined in radius filler regions of composite joints The Journal of the Acoustical Society of America, 140 (1). pp. 334-343. ISSN 0001-4966

Periyannan, Suresh ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2016) Torsional mode ultrasonic helical waveguide sensor for re-configurable temperature measurement AIP Advances, 6 (6). ISSN 2158-3226

Amireddy, Kiran Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2016) Holey-structured metamaterial lens for subwavelength resolution in ultrasonic characterization of metallic components Applied Physics Letters, 108 (22). ISSN 0003-6951

Ramya, M ; Balasubramanian, Krishnan ; Shunmugam, M S (2016) On a reliable assessment of the location and size of rebar in concrete structures from radargrams of ground-penetrating radar Insight - Non-Destructive Testing and Condition Monitoring, 58 (5). pp. 264-270. ISSN 1354-2575

Periyannan, S. ; Balasubramanian, Krishnan (2016) Moduli Determination at Different Temperatures by an Ultrasonic Waveguide Method Experimental Mechanics, 56 (7). pp. 1257-1270. ISSN 0014-4851

Periyannan, Suresh ; Rajagopal, Prabhu ; Balasubramanian, Krishnan (2016) Re-configurable multi-level temperature sensing by ultrasonic “spring-like” helical waveguide Journal of Applied Physics, 119 (14). ISSN 0021-8979

Gantala, Gopal ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2016) Location and sizing of defects in coated metallic pipes using limited view scattered data in frequency domain Journal of Nondestructive Evaluation, 35 (2). ISSN 0195-9298

Makireddi, Sai ; Balasubramanian, Krishnan (2016) A 1–3 piezoelectric fiber reinforced carbon nanotube composite sensor for crack monitoring Journal of The Institution of Engineers (India): Series C, 97 (3). pp. 345-356. ISSN 2250-0545

Pandya, Santosh P. ; Pandya, Shwetang N. ; Patil, Yashashri V. ; Krishnan, Deepu S. ; Murugesan, Menaka ; Sharath, D. ; Singh, K. Premjit ; Khan, Md. Shoaib ; Arafat, M. ; Biju, N. ; Khirwadkar, Samir S. ; Govidarajan, Jagannathan ; Venkatraman, B. ; Balasubramanian, Krishnan (2016) A comparison between finite element modeling and various thermographic non-destructive testing techniques for the quantification of the thermal integrity of macro-brush plasma facing components used in a tokamak Review of Scientific Instruments, 87 (2). ISSN 0034-6748

Harish, Achar V ; Ray, Pabitro ; Rajagopal, Prabhu ; Balasubramanian, Krishnan ; Srinivasan, Balaji (2016) Detection of fundamental shear horizontal mode in plates using fibre Bragg gratings Journal of Intelligent Material Systems and Structures, 27 (16). pp. 2229-2236. ISSN 1045-389X

Padiyar M, Janardhan ; Balasubramanian, Krishnan (2015) Quantitative characterization of interface delamination in composite T-joint using couplant-free Lamb wave methods Journal of Reinforced Plastics and Composites, 35 (4). pp. 345-361. ISSN 0731-6844

Periyannan, Suresh ; Balasubramanian, Krishnan (2015) Simultaneous moduli measurement of elastic materials at elevated temperatures using an ultrasonic waveguide method Review of Scientific Instruments, 86 (11). ISSN 0034-6748

Makireddi, Sai ; S, Shivaprasad ; Kosuri, Gautham ; Varghese, Francis V. ; Balasubramanian, Krishnan (2015) Electro-elastic and piezoresistive behavior of flexible MWCNT/PMMA nanocomposite films prepared by solvent casting method for structural health monitoring applications Composites Science and Technology, 118 . pp. 101-107. ISSN 0266-3538

Metya, Avijit Kr ; Ghosh, Mainak ; Parida, N. ; Balasubramanian, Krishnan (2015) Effect of tempering temperatures on nonlinear Lamb wave signal of modified 9Ct-1Mo steel Materials Characterization, 107 . pp. 14-22. ISSN 1044-5803

Sathish Kumar, K. ; Balasubramanian, Krishnan (2015) Simulations and experiments for the detection of flow-assisted corrosion in pipes Journal of Pressure Vessel Technology, 137 (6). ISSN 0094-9930

Harish, Achar V. ; Varghese, Bibin ; Rao, Babu ; Balasubramanian, Krishnan ; Srinivasan, Balaji (2015) Dynamic interrogator for elastic wave sensing using Fabry Perot filters based on fiber Bragg gratings Ultrasonics, 60 . pp. 103-108. ISSN 0041-624X

Pattanayak, Roson Kumar ; Manogharan, Prabhakaran ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2015) Low frequency axisymmetric longitudinal guided waves in eccentric annular cylinders The Journal of the Acoustical Society of America, 137 (6). pp. 3253-3262. ISSN 0001-4966

Mini, R.S. ; Balasubramanian, Krishnan ; Ravindran, P. (2015) An experimental investigation on the influence of annealed microstructure on wave propagation Experimental Mechanics, 55 (6). pp. 1023-1030. ISSN 0014-4851

Narayana Jammalamadaka, S. ; Markandeyulu, G. ; Balasubramanian, Krishnan ; Arout Chelvane, J. (2015) Structural magnetic and magnetostrictive properties of Tb_0.3Dy_0.7−xNd_xFe_1.93 [x=0, 0.05, 0.1, 0.15 and 0.2] compounds Journal of Alloys and Compounds, 624 . pp. 40-43. ISSN 0925-8388

Periyannan, Suresh ; Balasubramanian, Krishnan (2015) Multi-level temperature measurements using ultrasonic waveguides Measurement, 61 . pp. 185-191. ISSN 0263-2241

Ramdhas, Abilasha ; Pattanayak, Roson Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2015) Symmetric low-frequency feature-guided ultrasonic waves in thin plates with transverse bends Ultrasonics, 56 . pp. 232-242. ISSN 0041-624X

Kolkoori, Sanjeevareddy ; Chitti Venkata, Krishnamurthy ; Balasubramanian, Krishnan (2015) Quantitative simulation of ultrasonic time of flight diffraction technique in 2D geometries using Huygens–Fresnel diffraction model: Theory and experimental comparison Ultrasonics, 55 . pp. 33-41. ISSN 0041-624X

Periyannan, S. ; Rajagopal, P. ; Balasubramanian, Krishnan (2015) Robust ultrasonic waveguide based distributed temperature sensing Physics Procedia, 70 . pp. 514-518. ISSN 1875-3892

Subhash, N N ; Balasubramanian, Krishnan (2014) Fluid level sensing using ultrasonic waveguides Insight - Non-Destructive Testing and Condition Monitoring, 56 (11). pp. 607-612. ISSN 1354-2575

Ramadas, C. ; Hood, Avinash ; Khan, Irfan ; Balasubramanian, Krishnan ; Joshi, Makarand (2014) An experimental study on the behavior of A_o mode transduced using misaligned air-coupled transducers in composite laminates Applied Acoustics, 83 . pp. 141-149. ISSN 0003-682X

Ramadas, C. ; Hood, Avinash ; Khan, Irfan ; Balasubramanian, Krishnan (2014) Effect of misalignment of air-coupled probes on A_o Lamb mode propagating in a metal plate Ultrasonics, 54 (5). pp. 1401-1408. ISSN 0041-624X

Verma, Bhupesh ; Mishra, Tarun Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2014) Interaction of low-frequency axisymmetric ultrasonic guided waves with bends in pipes of arbitrary bend angle and general bend radius Ultrasonics, 54 (3). pp. 801-808. ISSN 0041-624X

Abraham, Saju T. ; Albert, S. K. ; Das, C. R. ; Parvathavarthini, N. ; Venkatraman, B. ; Mini, R. S. ; Balasubramanian, Krishnan (2013) Assessment of sensitization in AISI 304 stainless steel by nonlinear ultrasonic method Acta Metallurgica Sinica, 26 (5). pp. 545-552. ISSN 1006-7191

Ramdhas, Abilasha ; Pattanayak, Roson Kumar ; Balasubramanian, Krishnan ; Rajagopal, Prabhu (2013) Antisymmetric feature-guided ultrasonic waves in thin plates with small radius transverse bends from low-frequency symmetric axial excitation The Journal of the Acoustical Society of America, 134 (3). pp. 1886-1898. ISSN 0001-4966

M., Janardhan Padiyar ; Balasubramanian, Krishnan (2013) Lamb-wave-based structural health monitoring technique for inaccessible regions in complex composite structures Structural Control and Health Monitoring . n/a-n/a. ISSN 1545-2255

Eswaraiah, Varrla ; Jyothirmayee Aravind, S. S. ; Balasubramanian, Krishnan ; Ramaprabhu, Sundara (2013) Graphene‐functionalized carbon nanotubes for conducting polymer nanocomposites and their improved strain sensing properties Macromolecular Chemistry and Physics, 214 (21). pp. 2439-2444. ISSN 1022-1352

Ramadas, C. ; Hood, Avinash ; Khan, Irfan ; Balasubramanian, Krishnan ; Joshi, M. (2013) Transmission and reflection of the fundamental Lamb modes in a metallic plate with a semi-infinite horizontal crack Ultrasonics, 53 (3). pp. 773-781. ISSN 0041-624X

Chindam, Chandraprakash ; Venkata, Krishnamurthy Chitti ; Balasubramanian, Krishnan ; Prakash, Raghu V. (2013) Thermomechanical response of metals: Maxwell vs. Kelvin–Voigt models Materials Science and Engineering: A, 560 . pp. 54-61. ISSN 0921-5093

Gantala, Gopal ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan ; Ganesan, N. (2012) Shape reconstruction of metal pipes with corrosion defects using single frequency limited view scattered data NDT & E International, 52 . pp. 129-135. ISSN 0963-8695

Pradeep, K.R. ; Nageswara Rao, B. ; Srinivasan, S.M. ; Balasubramanian, Krishnan (2012) Interface fracture assessment on honeycomb sandwich composite DCB specimens Engineering Fracture Mechanics, 93 . pp. 108-118. ISSN 0013-7944

Sreedhar, U. ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan ; Raghupathy, V.D. ; Ravisankar, S. (2012) Automatic defect identification using thermal image analysis for online weld quality monitoring Journal of Materials Processing Technology, 212 (7). pp. 1557-1566. ISSN 0924-0136

Biju, N. ; Ganesan, N. ; Krishnamurthy, C. V. ; Balasubramanian, Krishnan (2012) Defect sizing simulation studies for the tone-burst eddy current thermography using genetic algorithm based inversion Journal of Nondestructive Evaluation, 31 (4). pp. 342-348. ISSN 0195-9298

Ratnam, Dhayalan ; Balasubramanian, Krishnan ; Maxfield, Bruce W. (2012) Generation and detection of higher-order mode clusters of guided waves (HOMC-GW) using meander-coil EMATs IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 59 (4). pp. 727-737. ISSN 0885-3010

Kumar, K Sathish ; Murthy, V Satya Narayana ; Balasubramanian, Krishnan (2012) Improvement in the signal strength of magnetostrictive ultrasonic guided wave transducers for pipe inspection using a soft magnetic ribbon-based flux concentrator Insight - Non-Destructive Testing and Condition Monitoring, 54 (4). pp. 217-220. ISSN 1354-2575

Mukhopadhyay, Amretendu ; Sarkar, Rajdeep ; Punnose, Sony ; Valluri, Jitendra ; Nandy, T. K. ; Balasubramanian, Krishnan (2012) Scatter in nonlinear ultrasonic measurements due to crystallographic orientation change induced anisotropy in harmonics generation Journal of Applied Physics, 111 (5). ISSN 0021-8979

Prasad Rao, K. ; Veera Sreenu, A. ; Khalid Rafi, H. ; Libin, M.N. ; Balasubramanian, Krishnan (2012) Tool steel and copper coatings by friction surfacing – A thermography study Journal of Materials Processing Technology, 212 (2). pp. 402-407. ISSN 0924-0136

Balasubramanian, Krishnan ; Thiyagarajan, Kathirvel ; Prakash, Raghu V. (2012) Characterization of pulsed eddy current NDE in metallic materials through in-situ monitoring of tensile testing Studies in Applied Electromagnetics and Mechanics, 36 . pp. 108-114. ISSN 1383-7281

Gantala, Gopal ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan ; Ganesan, N. (2012) Shape reconstruction of corroded objects from limited view scattered data in frequency domain Studies in Applied Electromagnetics and Mechanics . ISSN 1383-7281

Chakrapani, Sunil Kishore ; Padiyar, M. Janardhan ; Balasubramanian, Krishnan (2011) Crack Detection in Full Size Cz-Silicon Wafers Using Lamb Wave Air Coupled Ultrasonic Testing (LAC-UT) Journal of Nondestructive Evaluation, 31 (1). pp. 46-55. ISSN 0195-9298

Ramadas, C. ; Padiyar, Janardhan ; Balasubramanian, Krishnan ; Joshi, Makarand ; Krishnamurthy, C.V. (2011) Lamb wave based ultrasonic imaging of interface delamination in a composite T-joint NDT & E International, 44 (6). pp. 523-530. ISSN 0963-8695

Ramadas, C. ; Harshe, Rahul ; Balasubramanian, Krishnan ; Joshi, Makarand (2011) Artificial neural network based multi-parameter inversion for the characterization of transversely isotropic composite lamina using velocity measurements of Lamb waves Journal of Composite Materials, 46 (5). pp. 517-525. ISSN 0021-9983

Dhayalan, R. ; Satya Narayana Murthy, V. ; Krishnamurthy, C.V. ; Balasubramanian, Krishnan (2011) Improving the signal amplitude of meandering coil EMATs by using ribbon soft magnetic flux concentrators (MFC) Ultrasonics, 51 (6). pp. 675-682. ISSN 0041-624X

Prakash, R.V. ; Pravin, T. ; Kathirvel, T. ; Balasubramanian, Krishnan (2011) Thermo-mechanical measurement of elasto-plastic transitions during cyclic loading Theoretical and Applied Fracture Mechanics: Mechanics and Physics of Fracture, 56 (1). pp. 1-6. ISSN 0167-8442

Ramadas, C. ; Balasubramanian, Krishnan ; Joshi, M. ; Krishnamurthy, C.V. (2011) Interaction of Lamb mode (A_o) with structural discontinuity and generation of "Turning modes" in a T-joint Ultrasonics, 51 (5). pp. 586-595. ISSN 0041-624X

Ramadas, C. ; Balasubramanian, Krishnan ; Hood, Avinash ; Joshi, Makarand ; Krishnamurthy, C.V. (2011) Modelling of attenuation of Lamb waves using Rayleigh damping: Numerical and experimental studies Composite Structures, 93 (8). pp. 2020-2025. ISSN 0263-8223

Khalid Rafi, H. ; Balasubramanian, Krishnan ; Phanikumar, G. ; Prasad Rao, K. (2011) Thermal profiling using infrared thermography in friction surfacing Metallurgical and Materials Transactions A, 42 (11). pp. 3425-3429. ISSN 1073-5623

Reddy, M V ; Lukose, S N ; Subramanian, M P ; Rao, G V Siva ; Muralidhar, C ; Balasubramanian, Krishnan (2011) Industrial computed tomography system for aerospace applications: development and characterisation Insight - Non-Destructive Testing and Condition Monitoring, 53 (6). pp. 307-311. ISSN 1354-2575

Ramadas, C. ; Balasubramanian, Krishnan ; Joshi, Makarand ; Krishnamurthy, C.V. (2011) Numerical and experimental studies on propagation of A₀ mode in a composite plate containing semi-infinite delamination: Observation of turning modes Composite Structures, 93 (7). pp. 1929-1938. ISSN 0263-8223