Delamination detection in laminated composite using Virtual crack closure technique (VCCT) and modal flexibility based on dynamic analysis

12th International Conference on Damage Assessment of Structures

Khatir, S.^1 ; Behtani, A.^2 ; Tiachacht, S.^2 ; Bouazouni, A.^2 ; Abdel Wahab, M.^3 ; Zhou, Y.-L.^4

Department of Electrical Energy, Systems and Automation, Faculty of Engineering and Architecture, Ghent University, Belgium^1

Laboratory of Mechanics, Structure and Energetics (LMSE), Mouloud Mammeri University of Tizi-Ouzou, B.P.N17 RP, 15000, Algeria^2

Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 903, Zwijnaarde

B-9052, Belgium^3

Department of Civil and Environmental Engineering, National University of Singapore, 2 Engineering Drive 2, Singapore 117576, Singapore^4

关键词: Delamination detections;    Embedded interface;    Failure mechanism;    Finite element modelling;    Modal method;    Vibration data;    Virtual crack closure technique;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/842/1/012084/pdf
DOI  :  10.1088/1742-6596/842/1/012084

来源: IOP

【 摘 要 】

The delamination problem is very important failure mechanism in certain types of composite structures. Detecting this type of damage using vibration data is currently a problem of interest to the structural health monitoring community. In this paper, we used finite element method with embedded interface for analysing damaged laminated composite structures. The flexibly modal method, in which analysis data is related to finite element modelling, is used to detect and localize delamination. Several numerical examples are presented in order to evaluate the accuracy this approach.