A model of low-velocity impact damage assessment of laminated composite structures

Konstantinos P. Stamoulis, Stylianos K. Georgantzinos, Georgios I. Giannopoulos

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Laminated composites have important applications in modern aeronautical structures due to their extraordinary mechanical and environmental behaviour. Nevertheless, aircraft composite structures are highly vulnerable to impact damage, either by low-velocity sources during maintenance or high-velocity sources during in-flight events. Even barely visible impact damage induced by low-velocity loading, substantially reduces the residual mechanical performance and the safe-service life of the composites structures. Despite the extensive research already carried out, impact damage of laminated composite structures is still not well understood and it is an area of on-going research. Numerical modelling is considered as the most efficient tool as compared to the expensive and time-consuming experimental testing. In this paper, a finite element model based on explicit dynamics formulations is adopted. Hashin criterion is applied to predict the intra-laminar damage initiation and evolution. The numerical analysis is performed using the ABAQUS ® programme. The employed modelling approach is validated using numerical results found in the literature and the presented results show an acceptable correlation to the available literature data. It is demonstrated that the presented model is able to capture force-time response as well as damage evolution map for a range of impact energies.

Original languageEnglish
Article number01012
Pages (from-to)1-8
JournalMATEC Web of Conferences
Early online date7 Aug 2018
Publication statusPublished - 2018
Event5th International Conference of Engineering Against Failure, ICEAF-V 2018 - Chios, Greece
Duration: 20 Jun 201822 Jun 2018


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