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- 저자 : S.K. García-Castillo (검색결과 1 건)
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A non-dimensional theoretical approach to model high-velocity impact on thick woven plates
L. Alonso,D. Garcia-Gonzalez,C. Navarro,S.K. García-Castillo 국제구조공학회 2021 Steel and Composite Structures, An International J Vol.38 No.6
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.
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