16 August 2001 Near-field effects of damage
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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.
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Ashish S. Purekar, Ashish S. Purekar, Darryll J. Pines, Darryll J. Pines, } "Near-field effects of damage", Proc. SPIE 4327, Smart Structures and Materials 2001: Smart Structures and Integrated Systems, (16 August 2001); doi: 10.1117/12.436580; https://doi.org/10.1117/12.436580
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