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Article

Title: Ultrasound Excited Thermography

Author: Cornee, Eilie Article Type: Product Analysis
Source: Advanced Imaging, v21 n8 p46(1) Publication Date: Sep 2006
  ISSN: 1042-0711
  Illustrations: Output Samples
URL of Publication: http://www.advancedimagingmag.com

A new non-destructive testing (NDT)/non-destructive examination (NDE) technology provides defect selective recognition of material failure. The technology, known as ultrasound excited thermography, was developed and patented through a cooperative venture between KPI and the University of Stuttgart. Enhanced defect visualization is based on the interaction of elastic and thermal waves and offers a new way to detect mechanical hysteresis in material that has been caused by cracks, delaminations, poor bonding, or other material weakness. With the new technique, inspection areas as big as 0.5m by 0.5m or more have been efficiently examined for defects. The technique has also demonstrated superior inspection results with many types of materials, including metals, ceramics, fiber-reinforced compounds, fiber-ceramics, and other solids with low mechanical damping in the ultrasound regime. Two applications of ultrasound excited thermography are described: crack detection in metallic components and quality control of adhesive bonding. Research for further development of the technique is in an advanced phase, and there is reason for optimism that enhanced detection limits and online ultrasound excited thermography installed into production lines is possible.

Special Features: Output Samples

Products:
Mechanical Engineering QA (Quality Assurance)

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