PSI - Issue 25

Wojciech Danek et al. / Procedia Structural Integrity 25 (2020) 19–26 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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PMCs. Due to the complexity of the fracture mechanics of composite structures, additional experimental studies have to be performed based on a representative number of composite specimens. It is planned to compare the results of the numerical analyses with the data containing information about the real form of created damage based on a number of damaged specimens with known impact parameters and the results of non-destructive testing using ultrasonic testing and X-ray computed tomography. The results of further analyses will allow for adequate fine tuning of the model and applying it for the prediction of the residual life of structures with BVID.

a)

b)

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Fig. 7. Von Misses stress map after the impact for the plate model with a) FE size of 3.5 mm b) FE size of 1.75 mm c) FE size of 0.9 mm.

Acknowledgements The results presented in this paper were obtained within the framework of research grant No. 2017/25/N/ST8/01009 financed by the National Science Centre, Poland. References Andrew, J.J., Srinivasan, S.M., Arockiarajan, A., Dhakal, H.M., 2019. Parameters Influencing the Impact Response of Fiber-Reinforced Polymer Matrix Composite Materials: A Critical Review. Composite Structures 224, 111007. Baluch, A.H., Falcó, O., Jiménez, J.L., Tijs, B.H.A.H., Lopes, C.S ., 2019. An Efficient Numerical Approach to the Prediction of Laminate Tolerance to Barely Visible Impact Damage. Composite Structures 225, 111017. Francesconi, L., Aymerich, F., 2017. Numerical Simulation of the Effect of Stitching on the Delamination Resistance of Laminated Composites Subjected to Low-Velocity Impact. Composite Structures 159, 110 – 120. Gaitanelis, D.G., Giannopoulos, I.K., Theotokoglou, E.E., 2019. Numerical FEA Parametric Analysis of CAI Behaviour of CFRP Stiffened Panels. Thin-Walled Structures 143, 106231. Hallquist, J. O., 2006. LS-DYNA Theory Manual, Livermore Software Technology Corp., Livemore. Hallquist, J. O., 2007. LS-DYNA Keywords User`s Manual, Livermore Software Technology Corp., Livemore.