Charalampos Loukas

Search results

• 2024

  A study of machine learning object detection performance for phased array ultrasonic testing of carbon fibre reinforced plastics

  Tunukovic, V., McKnight, S., Mohseni, E., Pierce, S. G., Pyle, R., Duernberger, E., Loukas, C., Vithanage, R. K. W., Lines, D., Dobie, G., MacLeod, C. N., Cochran, S. & O'Hare, T., 30 Jun 2024, In: NDT and E International. 144, 17 p., 103094.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Detection 100%
  • Investigation 100%
  • Ultrasonics 100%
  • Phased Array 100%
  • Machine Learning 100%
  27 Downloads (Pure)

• In-process ultrasonic inspection during fusion welding

  Sweeney, N., Lines, D., MacLeod, C. N., Loukas, C., Wathavana Vithanage, R. K., Vasilev, M., Mohseni, E., Parke, S., Burnett, A., Murray, C., Symington, M. & Holt, A., 27 Jun 2024.

  Research output: Contribution to conference › Presentation/Speech › peer-review

  • Welding 100%
  • Inspection 100%
  • Ultrasonics 100%
  • Welds 33%
  • Defects 25%

• A quantitative investigation for deployment of mobile collaborative robots in high-value manufacturing

  Hifi, A., Jackson, W., Loukas, C., Shields, M., Poole, A., Mohseni, E., MacLeod, C. N., Dobie, G., Pierce, S. G., O'Hare, T., Munro, G., O'Brian-O'Reilly, J. & Vithanage, R. W. K., 10 Jun 2024, Ithaca, NY, 34 p.

  Research output: Working paper › Working Paper/Preprint

  Open Access

  File

  • mobile manipulator 100%
  • Inspection Sensor 50%
  • Fixed System 50%
  8 Downloads (Pure)

• A comparison of methods for generating synthetic training data for domain adaption of deep learning models in ultrasonic non-destructive evaluation

  McKnight, S., Pierce, S. G., Mohseni, E., MacKinnon, C., MacLeod, C., O'Hare, T. & Loukas, C., 31 Jan 2024, In: NDT and E International. 141, 14 p., 102978.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Ultrasound 100%
  • Classification 100%
  • Learning 100%
  • Training 100%
  • Noise 50%
  8 Citations (Scopus)

  37 Downloads (Pure)
• 2023

  In-process non-destructive evaluation of metal additive manufactured components at build using ultrasound and eddy-current approaches

  Zimermann, R., Mohseni, E., Foster, E. A., Vasilev, M., Loukas, C., Vithanage, R. K. W., Macleod, C. N., Lines, D., Silva, M. P. E. E., Fitzpatrick, S., Halavage, S., McKegney, S., Rizwan, M. K., Pierce, S. G., Williams, S. & Ding, J., 1 Dec 2023, In: Journal of Manufacturing Processes. 107, p. 549-558 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Additives 100%
  • Non Destructive Evaluation 100%
  • Gas Fuel Manufacture 100%
  • In-Process 100%
  • Evaluation 100%
  4 Citations (Scopus)

  50 Downloads (Pure)

• In-process ultrasonic inspection during fusion welding

  Sweeney, N., MacLeod, C. N., Lines, D., Wathavana Vithanage, R. K., Vasilev, M., Loukas, C., Mohseni, E., Parke, S., Burnett, A., Murray, C., Symington, M. & Holt, A., 24 Oct 2023.

  Research output: Contribution to conference › Presentation/Speech › peer-review

  • Welding 100%
  • Inspection 100%
  • Ultrasonics 100%
  • Defects 28%
  • Welds 28%

• Considerations for process to part inspection for flexible manufacturing NDT

  Pierce, G., Mohseni, E., Wathavana Vithanage, R. K., Poole, A., Hifi, A., Shields, M., Vasilev, M., Loukas, C., MacLeod, C. N., Dobie, G., O'Brien-O'Reilly, J., Munro, G., O'Hare, T., Grosser, M. & Oakley, A., 13 Sept 2023.

  Research output: Contribution to conference › Abstract › peer-review

  • Non-Destructive Testing 100%
  • Flexible Manufacturing System 100%
  • Inspection 100%
  • Accuracy 100%
  • Control 66%

• Data fusion for multi-modal in-process non-destructive evaluation of Wire + Arc Additive Manufacturing

  Mohseni, E., McKnight, S., Tunukovic, V., Zimermann, R., Pyle, R., Rizwan, M. K., MacLeod, C. N., Wathavana Vithanage, R. K., Loukas, C., Javadi, Y., Pierce, G., Gachagan, A., Ding, J., Williams, S. & O'Hare, T., 6 Sept 2023.

  Research output: Contribution to conference › Abstract › peer-review

• In-process phased array ultrasonic weld pool monitoring

  Sweeney, N. E., Parke, S., Lines, D., Loukas, C., Vasilev, M., Pierce, S. G. & MacLeod, C. N., 31 Jul 2023, In: NDT and E International. 137, 11 p., 102850.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Welds 100%
  • Phased Array 100%
  • Ultrasonics 100%
  • Arrays 100%
  • Phased Array Ultrasonics 100%
  5 Citations (Scopus)

  74 Downloads (Pure)

• Flexible robotics for automated non-destructive testing

  Hifi, A., Wathavana Vithanage, R. K., McKnight, S., Poole, A., Loukas, C., Nicolson, E., Allan, E., MacLeod, C. N., Pierce, G. & O'Hare, T., 25 Jul 2023.

  Research output: Contribution to conference › Abstract › peer-review

• Automated deep learning for defect detection in carbon fibre reinforced plastic composites

  Tunukovic, V., McKnight, S., Mohseni, E., Pierce, S. G., Pyle, R., Duernberger, E., Loukas, C., Vithanage, R. K. W., Lines, D., Dobie, G., MacLeod, C. N., Cochran, S. & O'Hare, T., 24 Jul 2023. 17 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Non-Destructive Testing 100%
  • Defect Detection 100%
  • Carbon-Fiber-Reinforced Plastic 100%
  • Carbon Fibre Reinforced Polymer 100%
  • Fibre Reinforced Plastic Composite 100%
  27 Downloads (Pure)

• Flexible and automated robotic multi-pass arc welding

  Loukas, C., Warner, V., Jones, R., MacLeod, C. N., Dobie, G., Sibson, J., Pierce, G. & Gachagan, A., 16 Jul 2023, (E-pub ahead of print).

  Research output: Contribution to conference › Abstract › peer-review

  • Robotics 100%
  • Electric Arc Welding 100%
  • Welding 100%
  • Arc Welding 100%
  • Geometry 37%

• In-process monitoring and control of multi-pass fusion welding using phased arrays

  Sweeney, N. E., MacLeod, C. N., Lines, D., Parke, S., Pierce, S. G. & Loukas, C., 7 Jul 2023. 1 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Defects 100%
  • Welding 100%
  • Process Monitoring 100%
  • Process Control 100%
  • Phased Array 100%
  11 Downloads (Pure)

• In-process non-destructive evaluation of wire + arc additive manufacture components using ultrasound high-temperature dry-coupled roller-probe

  Zimermann, R., Mohseni, E., Vasilev, M., Loukas, C., Wathavana Vithanage, R. K., MacLeod, C. N., Pierce, G., Lines, D., Pimentel Espirindio E Silva, M., Fitzpatrick, S., Rizwan, M. K., Williams, S. & Ding, J., 7 Jul 2023. 1 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Additive Manufacture 100%
  • Non Destructive Evaluation 100%
  • High Temperature 100%
  • In-Process 100%
  • Evaluation 100%
  28 Downloads (Pure)

• Real-time phased array ultrasonic weld pool monitoring during multi-pass weld deposition

  Sweeney, N., MacLeod, C. N., Parke, S., Lines, D., Loukas, C., Vasilev, M. & Pierce, G., 27 Jun 2023.

  Research output: Contribution to conference › Presentation/Speech › peer-review

  • Multipass Weld 100%
  • Welds 100%
  • Inspection 100%
  • Ultrasonics 100%
  • Phased Array 100%

• Dry-coupled ultrasound phased array inspection of as-built complex geometry metal additive manufactured components

  Zimermann, R., Rizwan, M. K., Loukas, C., Vasilev, M., Mohseni, E., Vithanage, R. K. W., MacLeod, C. N., Lines, D., Pimentel, M., Fitzpatrick, S., Halavage, S., McKegney, S., Pierce, G., Williams, S. & Ding, J., 23 Jun 2023. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  File

  • Additives 100%
  • Phased Array 100%
  • Inspection 100%
  • Metal 100%
  • Three Dimensional Printing 100%
  28 Downloads (Pure)

• Towards real-time quantitative monitoring and control of weld pool dimensions using phased array ultrasonics

  Sweeney, N. E., Lines, D., Nicolson, E., Loukas, C., Pierce, S. G., Parke, S. & MacLeod, C. N., 23 Jun 2023. 4 p.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  File

  • Arrays 100%
  • Dimensions 100%
  • Ultrasonics 100%
  • Pool 100%
  • Dimension 100%
  37 Downloads (Pure)

• Automated multi-modal in-process non-destructive evaluation of wire + arc additive manufacturing

  Mohseni, E., MacLeod, C. N., Pierce, S. G., Vithanage, R. K. W., Zimermann, R., Foster, E., Vasilev, M., Loukas, C., Rizwan, M. K., Lines, D., Pimentel, M., Fitzpatrick, S., Halavage, S., McKegney, S., Gachagan, A., Williams, S. & Ding, J., 5 Jun 2023, p. OC205.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Non Destructive Evaluation 100%
  • Additive Manufacturing 100%
  • Sensor 100%
  • Evaluation 100%
  • Three Dimensional Printing 100%
  23 Downloads (Pure)

• Driving towards flexible and automated robotic multi-pass arc welding

  Loukas, C., Warner, V., Jones, R., MacLeod, C. N., Dobie, G., Sibson, J., Pierce, G. & Gachagan, A., 3 May 2023.

  Research output: Contribution to conference › Abstract › peer-review

  • Robotics 100%
  • Electric Arc Welding 100%
  • Welding 100%
  • Arc Welding 100%
  • Geometry 33%

• A study of the accuracy and repeatability of mobile collaborative robots for non-destructive evaluations

  Hifi, A., Wathavana Vithanage, R. K., Jackson, W., Loukas, C., Shields, M., MacLeod, C. N., Dobie, G., Pierce, G., O'Hare, T. & Munro, G., 26 Apr 2023.

  Research output: Contribution to conference › Abstract › peer-review

• Flexible robotics to inspect aerospace components​

  Wathavana Vithanage, R. K., Burnham, K. C., Vasilev, M., Loukas, C., Hifi, A., Poole, A., Zimermann, R., Lines, D., MacLeod, C. N., Pierce, G., Gachagan, A., Williams, S., Ding, J., O'Hare, T., Munro, G. & O'Brien-O'Reilly, J., 26 Apr 2023.

  Research output: Contribution to conference › Abstract › peer-review

• Towards automated in-process NDE of high-value safety critical components built using metal additive manufacturing

  Zimermann, R., Rizwan, M. K., Mohseni, E., Wathavana Vithanage, R. K., Loukas, C., Vasilev, M., Lines, D., MacLeod, C. N., Pierce, G., Williams, S. & Ding, J., 26 Apr 2023. 1 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • In-Process 100%
  • Evaluation 100%
  • 3D Printing 100%
  • Critical Component 100%
  • Metal 100%
  23 Downloads (Pure)

• Transforming industrial manipulators via kinesthetic guidance for automated inspection of complex geometries

  Loukas, C., Vasilev, M., Zimermann, R., Vithanage, R. K. W., Mohseni, E., MacLeod, C. N., Lines, D., Pierce, S. G., Williams, S., Ding, J., Burnham, K., Sibson, J., O'Hare, T. & Grosser, M. R., 5 Apr 2023, In: Sensors. 23, 7, 15 p., 3757.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Manipulator 100%
  • Manufacturing Sector 25%
  • Detection 25%
  • Standards 25%
  • Path Planning 25%
  20 Downloads (Pure)
• 2022

  A sensor enabled robotic strategy for automated defect-free multi-pass high-integrity welding

  Loukas, C., Warner, V., Jones, R., MacLeod, C. N., Vasilev, M., Mohseni, E., Dobie, G., Sibson, J., Pierce, S. G. & Gachagan, A., 31 Dec 2022, In: Materials and Design. 224, 17 p., 111424.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Robotics 100%
  • Welding 100%
  • Defects 100%
  • Sensor 100%
  • Defect 100%
  2 Citations (Scopus)

  45 Downloads (Pure)

• Automated multi-modal in-process non-destructive evaluation of wire + arc additive manufacturing

  Mohseni, E., Zimermann, R., Vithanage, R. K. W., Foster, E., Vasilev, M., Loukas, C., Rizwan, M. K., MacDonald, C., Lines, D., Pimentel, M., Fitzpatrick, S., Halavage, S., McKegney, S., Pierce, G., Gachagan, A., Williams, S. & Ding, J., 8 Sept 2022. 2 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Non Destructive Evaluation 100%
  • Additive Manufacturing 100%
  • Wire 100%
  • Three Dimensional Printing 100%
  • Non-Destructive Testing 100%
  47 Downloads (Pure)

• Autonomous and targeted eddy current inspection from UT feature guided wave screening of resistance seam welds

  Foster, E., MacLeod, C. N., Loukas, C., Vasilev, M., McKnight, S., McInnes, M., Gachagan, A., Bolton, G., Bernard, R. & Mohseni, E., 8 Sept 2022. 1 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Welds 100%
  • Guided Wave 100%
  • Inspection 100%
  • Wave 100%
  • Weld 100%
  29 Downloads (Pure)

• Multi-sensor electromagnetic inspection feasibility for aerospace composites surface defects

  Mohseni, E., Pierce, S. G., Vithanage, R., Dobie, G., MacLeod, C. N., McKnight, S., Foster, E., Loukas, C., McInnes, M., Gover, H., Burnham, K., O'Brien-O'Reilly, J., Paton, S., Munro, G., O'Hare, T. & Grosser, M., 8 Sept 2022. 2 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Surface Defect 100%
  • Inspection 100%
  • Composite Material 100%
  • Sensor 100%
  • Electromagnetics 100%
  151 Downloads (Pure)

• Development of a phased array ultrasound roller probe for inspection of wire + arc additive manufactured components

  Vithanage, R. K. W., Mohseni, E., Lines, D., Loukas, C., Foster, E., MacLeod, C. N., Pierce, S. G., Gachagan, A., Ding, J. & Williams, S., 31 Aug 2022, In: Journal of Manufacturing Processes. 80, p. 765-774 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Three Dimensional Printing 100%
  • Probe 100%
  • Temperature 50%
  • Metal 50%
  • Non-Destructive Testing 50%
  6 Citations (Scopus)

  73 Downloads (Pure)

• Automated real time eddy current array inspection of nuclear assets

  Foster, E. A., Bolton, G., Bernard, R., McInnes, M., McKnight, S., Nicolson, E., Loukas, C., Vasilev, M., Lines, D., Mohseni, E., Gachagan, A., Pierce, G. & MacLeod, C. N., 12 Aug 2022, In: Sensors. 22, 16, p. 6036 19 p., 6036.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Coil 100%
  • Eddy Current 100%
  • Time 100%
  • Arrays 100%
  • Signal-to-Noise Ratio 100%
  9 Citations (Scopus)

  78 Downloads (Pure)

• Targeted eddy current inspection based on ultrasonic feature guided wave screening of resistance seam welds

  Foster, E., MacLeod, C. N., Mohseni, E., Gachagan, A., Loukas, C., Vasilev, M., McKnight, S., McInnes, M., Lines, D., Gachagan, A., Bolton, G. & Bernard, R., 27 Jul 2022. 2 p.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • Wave 100%
  • Weld 100%
  • Resistance 100%
  • Eddy Current 100%
  • Non-Destructive Testing 50%
  24 Downloads (Pure)

• In-process non-destructive evaluation of wire + arc additive manufacture components using ultrasound high-temperature dry-coupled roller-probe

  Zimermann, R., Mohseni, E., Vasilev, M., Loukas, C., Vithanage, R. K. W., Macleod, C., Lines, D., Pimentel, M., Fitzpatrick, S., Halavage, S., McKegney, S., Pierce, G., Williams, S. & Ding, J., 25 Jul 2022.

  Research output: Contribution to conference › Abstract › peer-review

  Open Access

  File

  • In-Process 100%
  • Evaluation 100%
  • High Temperature 100%
  • Ultrasound 100%
  • 3D Printing 100%
  35 Downloads (Pure)

• Characterization of EMAT guided wave reflectivity on welded structures for use in ranging

  McMillan, R., Tabatabaeipour, M., Hampson, R., Loukas, C., Zhao, T., Edwards, R. S., MacLeod, C. N. & Dobie, G., 7 Jun 2022, In: IEEE Sensors Journal. 23, 5, p. 4383-4391 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Guided Wave 100%
  • Welded Structure 100%
  • Rangefinding 100%
  • Welds 83%
  • Inspection 50%
  3 Citations (Scopus)

  70 Downloads (Pure)

• Collaborative robotic Wire + Arc Additive Manufacture and sensor-enabled in-process ultrasonic Non-Destructive Evaluation

  Zimermann, R., Mohseni, E., Vasilev, M., Loukas, C., Vithanage, R. K. W., MacLeod, C. N., Lines, D., Javadi, Y., Espirindio E Silva, M. P., Fitzpatrick, S., Halavage, S., McKegney, S., Pierce, S. G., Williams, S. & Ding, J., 31 May 2022, In: Sensors. 22, 11, 14 p., 4203.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Additive Manufacture 100%
  • Robotics 100%
  • Ultrasonics 100%
  • Non Destructive Evaluation 100%
  • Sensor 100%
  10 Citations (Scopus)

  54 Downloads (Pure)
• 2021

  A cost-function driven adaptive welding framework for multi-pass robotic welding

  Loukas, C., Williams, V., Jones, R., Vasilev, M., MacLeod, C. N., Dobie, G., Sibson, J., Pierce, G. & Gachagan, A., 31 Jul 2021, In: Journal of Manufacturing Processes. 67, p. 545-561 17 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Welding 100%
  • Parameter 33%
  • Independent Variables 22%
  • Arc Welding 22%
  • Filler 22%
  8 Citations (Scopus)

  55 Downloads (Pure)

• Sensor-enabled multi-robot system for automated welding and in-process ultrasonic NDE

  Vasilev, M., MacLeod, C. N., Loukas, C., Javadi, Y., Vithanage, R. K. W., Lines, D., Mohseni, E., Pierce, S. G. & Gachagan, A., 27 Jul 2021, In: Sensors. 21, 15, 17 p., 5077.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Welding 100%
  • Ultrasonics 100%
  • Non Destructive Evaluation 100%
  • Robot System 100%
  • Evaluation 100%
  28 Citations (Scopus)

  106 Downloads (Pure)
• 2020

  A flexible robotic cell for in-process inspection of multi-pass welds

  Lines, D., Javadi, Y., Mohseni, E., Vasilev, M., MacLeod, C. N., Mineo, C., Wathavana Vithanage, R. K., Qiu, Z., Zimermann, R., Loukas, C., Foster, E., Pierce, G. & Gachagan, A., 1 Sept 2020, In: Insight: The Journal of the British Institute of Non-Destructive Testing. 62, 9, p. 526-532 7 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  File

  • Robotics 100%
  • Multipass Weld 100%
  • Inspection 100%
  • Weld 100%
  • Cell 100%
  7 Citations (Scopus)

  101 Downloads (Pure)
• 2019

  Flexible robotic cell for in-process inspection of multi-pass welds

  Lines, D. I., Javadi, Y., Mohseni, E., Vasilev, M., MacLeod, C. N., Vithanage, R. W., Qiu, Z., Zimermann, R., Loukas, C., Foster, E., Pierce, S. G. & Gachagan, A., 3 Sept 2019, p. 1-12. 12 p.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  File

  • Robotics 100%
  • Multipass Weld 100%
  • Inspection 100%
  • Weld 100%
  • Cell 100%
  2 Citations (Scopus)

  106 Downloads (Pure)

• In-process inspection of multi-pass robotic welding

  Javadi, Y., MacLeod, C., Lines, D., Vasilev, M., Mohseni, E., Foster, E., Qiu, Z., Vithanage, R., Zimermann, R., Loukas, C., Pierce, G. & Gachagan, A., 18 Jul 2019. 3 p.

  Research output: Contribution to conference › Paper › peer-review

  Open Access

  File

  • Robotics 100%
  • Welding 100%
  • Inspection 100%
  • Weld 100%
  • Welds 71%
  206 Downloads (Pure)