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Proceedings Paper

Near-field effects of damage
Author(s): Ashish S. Purekar; Darryll J. Pines
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Paper Abstract

The effects of crack damage on the vibrations of a beam is examined using wave propagation methods. A scattering matrix is developed which explores the relationship between incoming and outgoing structural waves at a crack. Near field waves are examined as an indicator of crack damage. Trends can be seen which would be helpful in determining the presence of a crack in a damage detection scheme. Experimental results show that near field waves increase as a result of crack damage.

Paper Details

Date Published: 16 August 2001
PDF: 11 pages
Proc. SPIE 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems, (16 August 2001); doi: 10.1117/12.436580
Show Author Affiliations
Ashish S. Purekar, Univ. of Maryland/College Park (United States)
Darryll J. Pines, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 4327:
Smart Structures and Materials 2001: Smart Structures and Integrated Systems
L. Porter Davis, Editor(s)

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