The latest trend in automotive as well as in aviation industry indicates the substitution of metal components with carbon fibre reinforced plastic (CFRP) structures. Due to material-specific requirements, load-bearing zones of these structures remain as hybrid transition areas in the form of metal joints or reinforcements embedded in a CFRP base body. Consequently, CFRP metal hybrid transition areas are associated with an increased quality concern. The present research is based on the formerly developed thermographic referencing procedure for representative defects in the CFRP component. The conceptualised approach comprises the methodological deduction of defective test specimens together with the stepwise variation of relevant thermographic testing parameters. The complete documentation of certain thermographic regions of interest (ROI) on the actual component, as a part of appropriate thermographic parameter sets in a structured database, constitutes the scope of the current investigation. In this context, parameter sets are characterised by the achievable failure contrast with respect to the correlating measurement time. The assignment of a database provides the user with task-specific guidelines in order to establish the corresponding testing set-up and to perform an optimised thermographic inspection. By this means, the referencing effort as well as the required measurement time can be reduced considerably.
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