A REVIEW PAPER ON BEAM USING CROSS-CORRELATION ANALYSIS OF VIBRATION RESPONSE

CIVIL

Currently 27% of an average Materials life cycle cost, both for naturals and composite structures, is spent on inspection and repair which excludes opportunity cost. By the use of SHM it is observed that there is reduction in maintenance and savings up to 75%. New reliable approaches for damage detection such as SHM need to be developed to ensure that the total cost of ownership of critical structures does not become limiting factor for their use. In this thesis cross correlation technique is used to detect and locate the damage in the structure using vibration analysis. This work involves the analysis ofss composite beam which has been Modelled in UGNX and simulation analysis has been done in ANSYS APDL to validate the damage detection approach. The responses of undamaged and damaged beam are recorded and used in cross correlation approach to compare the cross correlation functions, where the cross correlation functions are determined using the impulse responses which are obtained through the above analysis. These impulse responses corresponds to the inherent dynamic properties of the structure, therefore by comparing the cross correlation functions of undamaged and damaged beam, damage can be identified.

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