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Artificial materials and ultrasound to detect defects in large structures

  • Posted By
    10Pointer
  • Categories
    Science & Technology
  • Published
    23rd Jul, 2020
  • Institute of Technology Madras and the University of Nairobi have used metamaterials to improve detection of defects in large structures by guided wave ultrasound.
  • Metamaterials are artificially crafted materials with unique internal microstructures that give them properties not found in nature.
  • Potential applications of metamaterials are diverse and include optical filters, medical devices, remote aerospace applications and among others.
  • Guided wave testing (GWT)
  • Sound waves are sent along the length of the structure rather than into the structure, allowing the waves to travel longer distances.
  • GWT has poorer resolution than conventional ultrasound-based testing due to diffraction limitations.

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