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Steel and Composite Structures Volume 38, Number 6, March25 2021 , pages 717-737 DOI: https://doi.org/10.12989/scs.2021.38.6.717 |
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A non-dimensional theoretical approach to model high-velocity impact on thick woven plates |
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L. Alonso, D. Garcia-Gonzalez, C. Navarro and S.K. García-Castillo
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Abstract | ||
A theoretical energy-based model to capture the mechanical response of thick woven composite laminates, which are used in such applications as maritime or aerospace, to high-velocity impact was developed. The dependences of the impact phenomenon on material and geometrical parameters were analysed making use of the Vaschy-Buckingham Theorem to provide a non-dimensional framework. The model was divided in three different stages splitting the physical interpretation of the perforation process: a first where different dissipative mechanisms such as compression or shear plugging were considered, a second where a transference of linear momentum was assumed and a third where only friction took place. The model was validated against experimental data along with a 3D finite element model. The numerical simulations were used to validate some of the new hypotheses assumed in the theoretical model to provide a more accurate explanation of the phenomena taking place during a high-velocity impact. | ||
Key Words | ||
energy-absorption; impact behavior; analytical modelling; numerical modelling; FRP | ||
Address | ||
L. Alonso: Department of Chemical Technology, Energy and Mechanics, Rey Juan Carlos University, C/Tulipán s.n., 28933 Garcia-Gonzalez, C. Navarro and S.K. García-Castillo: Department of Continuum Mechanics and Structural Analysis, University Carlos III of Madrid, Avda. de la Universidad 30, 28911 | ||