This work focuses on the damage detection and assessment of barely visible impact damages that occur after impacting a composite stiffened structure through the acousto-ultrasonics technique. Delaminations and debondings have been introduced in two stiffened panels and afterwards interrogated with an integrated structural health monitoring (SHM) network within the project. In order to perform the damage assessment, a methodology for the identification of damages along with a graphical user interface is developed. The performance of the developed methodology is evaluated and a damage assessment based on several damage indices and actuation frequencies is carried out. The most suitable parameters for the given structure and damage types are finally reported.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Damage Assessment in Composite Structures Based on Acousto-Ultrasonics—Evaluation of Performance



    Published in:

    Publication date :

    2015-09-05


    Size :

    13 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Monitoring of omega-stringer stiffened CERP structures by Acousto Ultrasonics

    Eckstein, B. / Fritzen, C.P. / Bach, M. et al. | Tema Archive | 2010


    Health monitoring of aerospace structures with acoustic emission and acousto-ultrasonics

    Finlayson, R.D. / Friesel, M. / Carlos, M. et al. | Tema Archive | 2000



    An Acousto-Ultrasonics Pattern Recognition Approach for the Characterization of Impact Damage in Materials

    Molina, G. J. / Haddad, Y. M. / International Committee on Aeronautical Fatigue | British Library Conference Proceedings | 1995