Identification of two cracks in a rod by minimal resonant and antiresonant frequency data
We present a method for identifying two cracks in a rod by minimal spectral data. The use of antiresonances allows us to improve existing results on this problem. Damage parameters can be determined explicitly by means of closed-form expressions. Key tool is the explicit expression of the sensitivity of frequencies to cracks.
rods antiresonant frequencies multiple cracks damage identification natural frequencies