DEVELOPING A PORTABLE CRACK EVALUATION TOOL BASED ON SHEAROGRAPHY

Nondestructive Inspection techniques based on laser interferometry are highly sensitive, noninvasive and can inspect a large area simultaneously. This makes them attractive for remote monitoring and inspection of structures. Electronic Shearography (ES), which is an implementation of laser interferometry using an image shearing device and digital image processing has shown extensive promise for the inspection of aging aircraft structures. The major advantage of this method lies with the fact that it yields strains directly, eliminates the necessity for vibration isolation and minimizes the specimen size limitations created by the coherence length of the laser beam. These advantages coupled with electronic image acquisition and processing, make electronic shearography a strong contender for meeting the non-destructive evaluation needs for civil infrastructure.

  • Corporate Authors:

    Technomic Publishing Company, Incorporated

    851 New Holland Avenue, Box 3535
    Lancaster, PA  United States  17604
  • Authors:
    • Maji, A K
    • Satpathi, D
  • Conference:
  • Publication Date: 1996

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 279-283

Subject/Index Terms

Filing Info

  • Accession Number: 00725891
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 16 1996 12:00AM