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FIBER BRAGG GRATING SENSORS - BASED MECHANICAL STRUCTURE DAMAGE IDENTIFICATION

This paper describes a method for identifying the damage location for two dimensional plate - like structures. This method uses measured strain frequency response functions from intact and damage state to define a damage identification index. The strain frequency response functions are measured by distributed fiber Bragg grating (FBG) sensors. Numerical simulation and experimental tests are carried out. Both results show that this method combining strain frequency response function - based index with FBG distributed sensing can successfully identify the damage location. DOI: http://dx.doi.org/10.5755/j01.mech.18.1.1291