Structural Damage Detection using the Polynomial Annihilation Edge Detection Method
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Surace, Cecilia↗
Engineering topics
Saxena, Rishu
Publications and source records attributed to Saxena, Rishu.
On the Use of the Polynomial Annihilation Edge Detection for Locating Cracks in Beam-Like Structures
A crack in a structure causes a discontinuity in the first derivative of the mode shapes: On this basis, a numerical method for detecting discontinuities in smooth piecewise functions and their derivatives, based on a polynomial annihilation technique, has been applied to the problem of crack detection and localisation in beam-like structures for which only post-damage mode shapes are available. Using a finite-element model of a cracked beam, the performance of this methodology has been analysed for different crack depths and increasing amounts of noise. Given the crack position, a procedure to estimate its depth is also proposed and corresponding results shown.
Saxena, Rishu↗