A5059759975- Thermography and Photoacoustic Techniques
- Advanced Measurement and Detection Methods
- Welding Techniques and Residual Stresses
- Laser Material Processing Techniques
- Optical measurement and interference techniques
- Additive Manufacturing Materials and Processes
- Ultrasonics and Acoustic Wave Propagation
- Industrial Vision Systems and Defect Detection
- Mechanical Behavior of Composites
- Composite Structure Analysis and Optimization
- Calibration and Measurement Techniques
- Textile materials and evaluations
- High-Temperature Coating Behaviors
- Advanced Welding Techniques Analysis
- Advanced Sensor Technologies Research
- Non-Destructive Testing Techniques
Indian Institute of Technology Madras
2017-2023
Institute of Materials Research and Engineering
2023
Agency for Science, Technology and Research
2023
The Inner Fixed Structure (IFS) bond panel is a honeycomb sandwich with CFRP facesheet and heat shield on one side, perforated the other of jet engine nacelle. It subjected to extreme temperature both sides which damages inner epoxy adhesive between core. Accessibility this layer for non-destructive evaluation extremely challenging using conventional methods. This work proposes active thermography techniques such as flash induction accessing layer. infrared camera utilises perforations in...
The detection and characterization of cracks prior to damage is a technologically economically highly significant task very importance when it comes safety-relevant structures. evaluation components life closely related the presence in it. Laser thermography has already high capability for surface geometry artificial flaws metallic samples. Crack samples at temperature present manufacturing scenario. During casting process billets, form, due suboptimal cooling rates. These reduce value...
The induction heating using a circular coil in Carbon Fiber Reinforced Polymer (CFRP) laminates produces unique patterns, significantly influenced by the fiber orientations each layer and electrical contacts between layers. This study investigates these patterns thermography reveals transition from to rectangular under influence of coil. shift is driven changes interlaminar microstructure, particularly increasing separation at interfaces, interpreted as fewer contacts. research also presents...
Induction based heating is a promising technique for the detection of cracks in electrically conducting structures using thermography.This can be extended to composite especially carbon fiber reinforced plastic (CFRP) components due presence fibers.However, there have been various conflicting mechanisms suggested literature.This paper discusses about experimental and numerical approaches understand major mechanism happening inside composites
The detection of cracks before the failure is highly significant when it comes to safety-relevant structures.Crack in metallic samples at high surface temperature one challenging situation manufacturing industries.Laser thermography has already proved its capability room temperature.In this work a continuous wave (CW) laser use generate laser, which using scan metal with notch.The corresponding heat distribution on monitored infrared thermal (IR) camera.A simplified 3D model for developed...
The aim of this work is to illustrate the contribution signal processing techniques in field Non-Destructive Evaluation. A component’s life evaluation inevitably related presence flaws it. detection and characterization cracks prior damage a technologically economically significant task very importance when it comes safety-relevant measures. Laser Thermography most effective advanced thermography method for High capability surface geometry artificial metallic samples laser particularly...