Publications

Book and Book Chapters
Inventions
Invited Talks
Proceedings, Presentations, and Posters

Journal Articles

  1. J. Wanni, J. G. Michopoulos and A. Achuthan, “Influence of Cellular Subgrain Feature on Mechanical Deformation and Properties of Directed Energy Deposited Stainless Steel 316L,” Additive Manufacturing, 51, 2022, 102603, https://doi.org/10.1016/j.addma.2022.102603
  2. KLM Avegnon, P Noll, MR Uddin, G Madireddy, RE Williams, A Achuthan, and MP Sealy, “Use of energy consumption during milling to fill a measurement gap in hybrid additive manufacturing,” Additive Manufacturing, 46,2021,102167, https://doi.org/10.1016/j.addma.2021.102167
  3. K. Wijesinghe, J. Wanni, N. K. Banerjee, S. Banerjee and A. Achuthan, “Characterization of microscopic deformation of materials using deep learning algorithms,” Materials and Design, vol. 208, p. 109926, 2021, https://doi.org/10.1016/j.matdes.2021.109926
  4. J. Wanni, J. G. Mcihopoulos, A. Bagchi, S. Banerjee, N. Banjerjee, and A. Achuthan, “High‐resolution optical microscopy for characterising microstructural deformation in microtensile testing”, Journal of Microscopy, Vol 281(3), pp 202-213, 2021, https://doi.org/10.1111/jmi.12963
  5. A. Achuthan and S. A. Jayanath, “Stress Analysis of Variable Ram Blowout Prevention Valves,” SPE Drilling & Completion, 36(03), pp 647-657, 2021, https://doi.org/10.2118/205348-PA
  6. S. A. Jayanath* and A. Achuthan, “A computationally efficient hybrid model for simulating the additive manufacturing process of metals”, International Journal of Mechanical Sciences, Vol 160, pp 255-269, (2019)
  7. S. A. Jayanath and A. Achuthan, “A Computationally efficient Finite Element Framework to Simulate Additive Manufacturing Processes”, Journal of Manufacturing Science and Engineering, Vol 140(4), (2018), Art. #041009 (doi:10.1115/1.4039092)
  8. J Gale and A Achuthan, “Application of Ultrasonic Peening during DMLS Production of 316L Stainless Steel and its Effect on Material Behavior ”, Rapid prototyping Journal, Vol 23(6), (2017), pp 1185-1194
  9. M. G. Moghaddam† , A. Achuthan*, B. A. Bednarcyk, S. M. Arnold and E. J. Pineda, “Grain size dependent crystal plasticity constitutive model for polycrystal materials”, Materials Science and Engineering: A, 703, (2017), pp 521-532
  10. H. Hamid†, J. Bunn, H. E. Coules, A. Achuthan, J. Goldak, and D. K Aidun*, “A residual stress study in similar and dissimilar welds”, Welding Journal, 95(4), (2016)
  11. M. G. Moghaddam† , A. Achuthan*, B. A. Bednarcyk, S. M. Arnold and E. J. Pineda, “A Multi-scale Computational Model Combining Single Crystal Plasticity Constitutive Model with Generalized Method of Cells (GMC) for Metallic Polycrystals”, Materials, 9(5), (2016), pp 335-
  12. M. G. Moghaddam† , A. Achuthan*, B. A. Bednarcyk, S. M. Arnold and E. J. Pineda, “Development of a precipitate size-dependent crystal plasticity constitutive model for two-phase materials and its implementation on a multi-scale computational framework”, Materials Science and Engineering: A, 651, (2016), pp 893-903
  13. S. A. Jayanath†, A. Achuthan*, A. Mashue and M. Huang, “A subscale experimental test method to characterize extrusion-based elastomer seals”, Journal of Tribology, 138(3), (2016)
  14. H. Hamid†, A. Achuthan, J. Goldak, and D. K Aidun*, “Effect of material properties and mechanical tensioning load on residual stress formation in GTA 304-A36 dissimilar weld”, Journal of Materials Processing Technology, 222,(2015), pp 344-355
  15. L. Jones†, A. Achuthan, and B. D. Erath*, “Modal response of a computational vocal fold model with a substrate layer of adipose tissue”, Journal of the Acoustical Society of America, 137(2), (2015), 158- 164
  16. O. Ait Maatallah† , A. Achuthan*, K. Janoyan and P Marzocca, “Recursive wind speed forecasting based on Hammerstein auto-regressive model”, Applied Energy, 145, (2015), pp 191-197
  17. M. G. Moghaddam† , A. Achuthan*, B. A. Bednarcyk, S. M. Arnold and E. J. Pineda, “A Multi-scale Computational Model using Generalized Method of Cells (GMC) Homogenization for Multi-Phase Single Crystal Metals”, Computational Materials Science, 96,(2014), pp 44-55.
  18. A. Ukwatta† and A. Achuthan*, “A molecular dynamics (MD) simulation study to investigate the role of existing dislocations on the incipient plasticity under nanoindentation”, Computational Materials Science, 91,(2014), pp 329-338.
  19. J. D. Gale†, A. Achuthan*, and D. J. Morrison, “Indentation Size Effect (ISE) in Copper Subjected to Severe Plastic Deformation (SPD)”, Metallurgical and Materials Transactions A, 45(5), (2014), 2487-2497.
  20. J. D. Gale† and A. Achuthan*, “The effect of work-hardening and pile-up on nanoindentation measurements”, Journal of Materials Science, 49(14), (2014), 5066-5075.
  21. S. Bird*, A. Achuthan, O. Ait Maatallah†, W. Hu†, K. D. Janoyan, A. Kwasinski, J. N. Matthews, D. Mayhew, J. Owen, P. Marzocca. “Distributed (green) data centers: A new concept for energy, computing, and telecommunications”, Energy for Sustainable Development, (2014)
  22. T. J. Arsenault†, A. Achuthan*, P. Marzocca, C. Grappasonni, G. Coppotelli. Development of a FBG based distributed strain sensor system for wind turbine structural health monitoring. Smart Materials and Structures, 22(7), (2013), 075027.
  23. Z. Iverson†, A. Achuthan*, P. Marzocca, D. Aidun. “Optimal design of hybrid renewable energy systems (HRES) using hydrogen storage technology for data center applications”, Renewable Energy, 52, (2013), 79–87.
  24. A. Achuthan, C. T. Sun. A study of mechanisms of domain switching in a ferroelectric material via loading rate effect. Acta Materialia, 57(13), (2009), 3868–3875.
  25. A. Achuthan and C. T. Sun, “Domain switching in ferroelectric ceramic materials under combined loads”, Journal of Applied Physics, 97(11), (2005), 114103.
  26. C. T. Sun and A. Achuthan, “Domain-switching criteria for ferroelectric materials subjected to electrical and mechanical loads”, Journal of the American Ceramic Society, 87(3), (2004), 395-400.
  27. A. Achuthan, A. K. Keng and W. C. Wang, “Shape control of statically indeterminate beams with piezoelectric actuators”, Mechanics of Advanced Materials and Structures, 10(2), (2003), 145-160.
  28. A. Achuthan, A. K. Keng and W. C. Wang, “Shape control of coupled nonlinear piezoelectric beams”, Smart Materials and Structures 10(5), (2001), 914
  29. A. Achuthan, A. K. Keng and W. C. Wang, “Shape control of laminated cantilevered beams with piezoelectric actuators”, Journal of Intelligent Material Systems and Structures 10(2), (1999), 164-175.

Book and Book Chapters

  1. “Multiphysics Integrated Computational Materials Engineering Linking Additive Manufacturing Process Parameters with Part Performance”, https://doi.org/10.1115/1.862025_ch10, Book chapter in “Advances in Computers and Information in Engineering Research, Volume 2” https://doi.org/10.1115/1.862025, 2021

Inventions

  1. Ajit Achuthan and Joshua D Gale: Methods for Modifying and Enhancing Material Properties of Additive Manufactured Metallic Parts: (Application under review, US Patent Application 20160355904)
  2. William Andrew Hennessy, Habib Vafi, Donald Earl Castleberry, Michael John Utschig, Mahadevan Balasubramaniam, Jie Jiang, Virendra Vilas Gaikwad, Ajit Achuthan, Le Yan: Digital x-ray detectors. General Electric Jan, 15 2009: US 20090014659, US 7495227
  3. William James Premerlani, Kanakasabapathi Subramanian, Christopher Keimel, John N Park, Ajit Achuthan, Wensen Wang, Joshua Isaac Wright, Kristina Margaret Korosi, Somashekhar Basavaraj: Micro-electromechanical system based soft switching. General Electric Dec, 15 2009: US 7633725, : US 20070139830
  4. Marko Baller, Marcin Alexy, Glenn S Claydon, Peter Joseph Codella, Stacey Kennerly, Kuna Kishore, Anis Zribi, Guiju Song, Shivappa Goravar, Ajit Achuthan: Early fouling detection. General Electric Jan, 26 2010: US 7652586, US 20080041139
  5. Anis Zribi, Min-Yi Shih, Guiju Song, Ajit Achuthan, Glenn Scott Claydon, Stacey Joy Kennerly, Kuna Venkat Satya Rama Kishore, Jianming Zheng, Kevin George Harding, Hua Xia: Interferometerbased real time early fouling detection system and method. General Electric Sep, 23 2008: US 7428055, US 20080084565
  6. Stephen Daley Arthur, Kanakasabapathi Subramanian, William James Premerlani, John N Park, Ajit Achuthan, Wensen Wang, Joshua Isaac Wright, Kristina Margaret Korosi, Somashekhar Basavaraj: Micro-electromechanical system based arc-less switching. General Electric Jun, 21 2007: US 20070139829

Invited Talks

  1. A. Achuthan, “The order in the nucleation of discrete deformation events and its effect on the irreversible response of material systems”, Physics Department Graduate Seminar Series, Clarkson University, Spring 2014
  2. A. Achuthan, “Ultrasonic Treatment Probe to Control the Microstructure, Residual Stress and Mechanical Properties in Metal Additive Manufacturing”, Center for Advanced Materials, Clarkson University, Saratoga Springs, NY, May 2014
  3. A. Achuthan, “Metamaterial for Engine Acoustic Liner”, Center for Advanced Materials, Clarkson
    University, Rochester, NY, March 2014
  4. A. Achuthan, “Nanoindentation and Molecular Dynamics (MD) Simulation based Study on
    Nanoscale Spontaneous Deformation in Copper”, IIT Chennai, Chennai, India, July 2013
  5. A. Achuthan, “Experimental and Computational Tools for the Microstructure-based Design and
    Analysis of Turbine Components”, May 2013, Saratoga Springs, NY.
  6. A. Achuthan, “ Material response across spatial scales: A multiscale approach”, National Institute of
    Technology, Tiruchirappalli, TN, India, August, 2011 (Invited Talk)
  7. A. Achuthan, “ Fundamentals of thin walled structural analysis for aircraft structures”, Institution of
    Engineers (India), Tiruchirappalli, TN, India, August, 2011 (Invited Talk)
  8. A. Achuthan, “Surface Nano-Crystallization of Metals for Improved Properties: Mechanical and
    Thermal Characterization”, March 2011, Fairpoint, NY.

Proceedings, Presentations, and Posters

  1. S. Jayanath and A. Achuthan, “Toward the Development of a Computationally Efficient Multi-Scale Finite Element Modeling Framework to Simulate Additive Manufacturing Process”, AIAA SciTech 2018 (accepted)
  2. A. Ukwattage and A. Achuthan, “Development of residual stress of parts fabricated via selective laser melting (SLM) techniques under different scanning strategies”, AIAA SciTech 2018 (accepted)
  3. R. Saunders, A. Bagchi and A. Achuthan, “A method to determine local stress fields in microstructure features produced by additive manufacturing”, Proceedings of the ASME 2017 International Mechanical Engineering Congress and Exposition, IMECE 2017, November 3-9, 2017, Tampa, FL, USA
  4. A. Achuthan, A. Iliopoulos, J. Michopoulos, R. Saunders and A. Bagchi, “On the development of a grain size and aspect ratio dependent constitutive model for simulating powder-bed additive manufacturing”, Proceedings of the ASME 2017 International Design Engineering Technical
  5. Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2017, August 6-9, 2017, Cleveland, OH, USA
  6. A. Ukwattage and A. Achuthan, “The effect of scanning strategy on residual stress in metal parts fabricated via Selective Laser Melting (SLM) technique”, 2017 Annual International Solid Freeform Fabrication Symposium, Aug 09, 2017, Austin, TX
  7. S. Jayanath and A. Achuthan, “Computationally Efficient Finite Element (FE) Framework to Simulate Additive Manufacturing Process”, 2017 Annual International Solid Freeform Fabrication Symposium, Aug 09, 2017, Austin, TX
  8. R. M. Sebdani, J. Gale and A. Achuthan, “Real-Time Layer-by-Layer Ultrasonic Treatment of Additively Manufactured Metallic Materials”, 2017 Annual International Solid Freeform Fabrication Symposium, Aug 09, 2017, Austin, TX
  9. S. Jayanath and A. Achuthan , “A Computationally Efficient Finite Element (FE) Framework to Determine Residual Stress and Part Distortion in Additive Manufacturing (AM) Processes” RAPID3D TCT 2016, Orlando Florida
  10. J. Gale†, and A. Achuthan, “Material Property Enhancement in Additive Manufactured Materials using an Ultrasonic Peening Technique”, 2016 Annual International Solid Freeform Fabrication Symposium, Houston, June 2016
  11. J. Gale†, and A. Achuthan, “Material Property Enhancement in Additive Manufactured Materials using an Ultrasonic Peening Technique”, 2016 Annual International Solid Freeform Fabrication Symposium, Houston, June 2016
  12. A. Ukwatta†, and A. Achuthan, “Residual stresses in metal parts fabricated via Selective Laser Melting (SLM)”, 2016 Annual International Solid Freeform Fabrication Symposium, Houston, June 2016
  13. S. Wewala†, and A. Achuthan, “A Sub-Scale Experimental Test Method to Investigate the Failure of Variable Ram Blowout Prevention Valves”, Offshore Technology Conference, OTC 2016, Houston, TX, 2-5 May 2016
  14. Ukwatta† and A. Achuthan, “A Molecular Dynamics (MD) Based Investigation On The Dislocation Dynamics Under Nanoindentation”, ASME 2011 International Mechanical Engineering Congress & Exposition, IMECE-2014, Montreal, CA
  15. S. Wewala†, and A. Achuthan, “Finite Element Based Failure Analysis of Blow Out Preventer (BOP) Used in Oil and Gas Applications”, ASME 2011 International Mechanical Engineering Congress & Exposition, IMECE-2014, Montreal, CA
  16. J. Gale† and A. Achuthan, “Pileup Investigation on Work Hardened Copper During Sharp Tip Nanoindentation”, AIAA Science and Technology Forum and Exposition 2014, Scitech 2014, National Harbor, MD (Technical Paper/Presentation)
  17. M. Gh. Moghaddam†, A. Achuthan, B. A. Bednarcyk, S. M. Arnold, and E. J. Pineda, “Multi-scale computational modeling of two-phased metal using GMC method”, AIAA Science and Technology Forum and Exposition 2014, Scitech 2014, National Harbor, MD (Technical Paper/Presentation)
  18. Achuthan, “Metamaterial-based acoustic noise mitigation technologies”, NSF Center for Metamaterials, Charlotte, NC, 2014
  19. J. D. Gale†, and A. Achuthan, “Characteristic Length Scale Investigation on the Nanoscale Deformation of Copper,” Challenges in Mechanics of Time-Dependent Materials and Processes in Conventional and Multifunctional Materials, Volume 2: 93–99 (2013)
  20. M. Gh. Moghaddam†, and A. Achuthan, “FEM Simulation of SMAT in Single and Polycrystal Copper Using Crystal Plasticity Constitutive Model”, CAMP MAE Seminar, Clarkson University, Potsdam, NY (2013)
  21. Achuthan, “Acoustic metamaterials for engine noise mitigation”, NSF Center for Metamaterials, Charlotte, NC, 2013
  22. T. Arsenault†, A. Achuthan, and P. Marzocca, “Experimental Characterization of a FBG-Based Distributed Sensor System for Wind Turbine Technology”, International Mechanical Engineering Congress and Exposition 2012, ASME Congress, Houston 2012 (Technical Presentation)
  23. Ukwattage†, and A. Achuthan, “Deformation and Stability of Nanostructured Metals: A Computational Study”, International Mechanical Engineering Congress and Exposition 2012, ASME Congress, Houston 2012 (Technical Presentation)
  24. J. D. Gale†, and A. Achuthan, “Effect of Mechanical Polishing on the Nanoindentation Characterization of Copper”, International Mechanical Engineering Congress and Exposition 2012, ASME Congress, Houston 2012 (Technical Presentation)
  25. Z. Iverson†, A. Achuthan, P. Marzocca, and D. Aidun, “Optimal Sizing of hybrid renewable energy systems (HRES) for various power demand applications”, International Mechanical Engineering Congress and Exposition 2012, ASME Congress, Houston 2012 (651-659)
  26. J. D. Gale†, and A. Achuthan, “MECHANISM OF DEFORMATION IN NANOCRYSTALLIZED MATERIALS” XXIII International Congress on Theoretical and Applied Mechanics, August 2012, Beijing, China (Technical Presentation)
  27. J. D. Gale†, and A. Achuthan, “Characteristic Length Scale Investigation on the Nanoscale Deformation of Copper”, Proceedings of the 2012 Annual Conference on Experimental and Applied Mechanics, Society of Experimental Mechanics, 2012, pp 93-100
  28. Achuthan, T. Arsenault†, P. Marzocca , C. Grappasoni, and G. Coppotelli, “Dynamic Identification of Wind Turbine System Under Operational Conditions Using FBG Transducers”, Proceedings of the 53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Honolulu, April, 2012
  29. T. Arsenault†, A. Achuthan, P. Marzocca, and G. Coppotelli, “Integrated Sensor System for Structural Integrity and Load Monitoring of Wind Turbines” SAMPE 2012, Baltimore, 2012
  30. T. Arsenault†, A. Achuthan, P. Marzocca, D. Anguiano, D. Cardenas, H. Elizalde, O. Probst and G. Coppotelli, “Integrated Sensor System for Structural Integrity and Load Monitoring of Wind Turbines,” Proceedings of the 8th International Workshop on Structural Health Monitoring 2011, IWSHM 2011, Stanford, CA, September 13-15, 2011, pp. 2647-2655
  31. J. Gale†, and A. Achuthan, “Surface Nano-Crystallization of Bulk Metals and Metallic Free Standing Thin Films”, ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011-64627, Denver, CO (Technical Presentation)
  32. J. Gale†, and A. Achuthan, “Experimental Determination of Characteristic Length Scale of Dislocation Plasticity”, ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011, Denver, CO (Poster)
  33. T. Arsenault†, A. Achuthan and P. Marzocca, “Integrated FBG Sensor System for Structural Health and Load Monitoring of Wind Turbine Blades” ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011-64553, Denver, CO (Technical Presentation)
  34. Z. Iverson†, A. Achuthan, P. Marzocca, D. Aidun, and K. Caird, “Performance and Reliability Analysis of an Off-Grid Hybrid Power System”; Proceedings of the ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011-64197, Denver, CO
  35. M. G. Moghaddam†, and A. Achuthan, “Acoustic Metamaterials for Low Frequency Applications”, ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011, Denver, CO (Poster/Honorable Mention)
  36. M. Gh. Moghaddam†, and A. Achuthan, “Acoustic Metamaterials for noise mitigation”, ASME 2011 International Mechanical Engineering Congress & Exposition 2011, IMECE 2011-, Denver, CO. (Poster)-(NSF Travel Award)
  37. J. Gale†, J. Marshall‡, and A. Achuthan, May 2011, “Characterization of the Mechanical Properties of Surface Nanocrystallized Materials”, Experimental and Applied Mechanics, Volume 6, pp. 311-317
  38. J. Gale†, and A. Achuthan, “Nano-Grain Formation and Property Enhancement through Surface Mechanical Attrition Treatment”, Graduate Research Symposium, Clarkson University, Potsdam, NY, August 2011. (Technical Presentation) –Best presentation in session award
  39. Z. Iverson†, A. Achuthan, P. Marzocca, D. Aidun, and K. Caird, “Performance and Reliability Analysis of a Wind-Solar-Fuel Cell Hybrid Power System”, The 11th Annual Symposium on Environmental and Energy Systems, Syracuse Center of Excellence, 2011, Syracuse, NY (Technical Presentation)
  40. Achuthan (2011). Integrated Sensor System for Structural Integrity and Load Monitoring of Wind Turbines,” Proceedings of the 8th International Workshop on Structural Health Monitoring 2011 (vol. 6). ,” Proceedings of the 8th International Workshop on Structural Health Monitoring 2011
  41. M. Gh. Moghaddam†, and A. Achuthan, “Acoustic Metamaterials”, Center for Advanced Material Processing (CAMP) Technical Meeting, Clarkson University, Potsdam, NY, May 2011. (Poster Presentation)
  42. R. Thomas†, S. Peethamparan, and A. Achuthan, “Mechanical Behavior Of Concrete Composites With FRP Trusses and Rods,” CAMP-NYSTAR, Potsdam, NY (October 10, 2011)
  43. J. Gale†, and A. Achuthan, “Surface Nano-Crystallization of Metals for Improved Mechanical Properties”, Center for Advanced Material Processing (CAMP) Technical Meeting, Clarkson University, Potsdam, NY, May 2011. (Poster Presentation)
  44. C. T. Sun, and A. Achuthan, “Domain Switching in Polycrystalline Ferroelectrics Based on
  45. Microstructures” Int. Symp. Macro-Meso-Micro-Nano-Mechanics of Mat. Dec., 2003, Hong Kong
  46. Achuthan, and C. T. Sun, (2004). “Effect of Residual Stresses on Ferroelectric Ceramic Materials”, Smr. Str. Mat., Act. Mat.: Beh.& Mech., SPIE. (Proceedings – in print)
  47. Achuthan, and C. T. Sun, (2002). “Modeling of nonlinear piezoelectric behavior.”, Smr. Str. Mat.., Act. Mat.: Beh.& Mech., Proc. Soc. Pho.-Opt. Instr. Eng. (SPIE) 4699, pp.143-154
  48. T. Sun, and A. Achuthan, (2001). “Domain switching criteria for piezoelectric materials.”, Smr. Str. Mat.: Act. Mat.: Beh. &Mech., Proc Soc. Pho.-Opt. Instr. Eng. (SPIE) 4333, pp. 240-249
  49. K. K. Ang, A. Achuthan, and C. M. Wang, (2001). “Linear and Nonlinear actuations in shape control of beams.”, Smr. Str. & Dev., Proc. Soc. Pho.-Opt. Inst. Eng. (SPIE) 4235, pp. 509-520
  50. Achuthan, and R. M. S. Gowda, (1997). “Analysis of Axisymmetric Vibration of Polar Orthotropic Circular Plates” Proc. of the 48th AGM, AeSI, pp. 519-528