High energy dynamic impact analysis of thermoplastic composite laminates

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Ravi, Aswini Kona
Bhasin, Akhil
Gomez, Luis M.
Olivares, Gerardo
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Conference paper
Laminated composites; NASA; Projectiles; Reinforced plastics; Ballistic experiment; Composite laminate; Condition; Dynamic impact analysis; Dynamic impacts; Energy dynamics; Material systems; Modeling approach; NASA Glenn; Thermoplastic composite laminates; Numerical analysis
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Ravi, A.K., Bhasin, A., Gomez, L.M., Olivares, G. High energy dynamic impact analysis of thermoplastic composite laminates. (2024). AIAA SciTech Forum and Exposition, 2024. DOI: 10.2514/6.2024-1470

In this paper, the numerical analysis of thermoplastic laminates subjected to high-energy dynamic impact conditions is discussed. The ballistic experiments were conducted at NASA Glenn on two different thermoplastic material systems at a range of impact velocities. The material system considered for the research presented in this paper is Solvay APC AS4D/PEKK-FC. The test outcomes included projectile containment and penetration into the composite laminate. For the numerical analysis, two different modeling approaches with varying fidelity levels were considered. The first modeling approach is a simplified definition of the composite laminate using a single shell layer and is referred to as the basic fidelity level. The second modeling approach is more extensive, with all the plies in the composite laminate modeled distinctly and is referred to as the moderate fidelity level. Both the modeling approaches presented an acceptable correlation with test data when it comes to the projectile residual velocity and the panel displacement data. This paper aims to present the differences between the predictive capabilities of the simulations when the composite laminate is modeled using different fidelity levels and when a medium fidelity composite material model is chosen. © 2024 by Aswini Kona Ravi, NIAR AVET.

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AIAA SciTech Forum and Exposition, 2024
8 January 2024 through 12 January 2024
American Institute of Aeronautics and Astronautics Inc, AIAA
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