Ballistic Impact Simulations of an Aluminum 2024 Panel Using *MAT_224 in LS-DYNA Considering Oblique Incidence and Attitude Angles of a Rectangular Projectile
Publication: Earth and Space 2021
ABSTRACT
The objective of this study is (1) to validate the *MAT_224 model for Aluminum 2024 with complex impact conditions; (2) to evaluate its predictability of ballistic limit and residual velocities of a projectile under various impact conditions; and (3) to investigate the effects of oblique and attitude angle variations of a projectile on penetration to a target plate. The newly developed *MAT_224 model version 2.0 for Aluminum 2024 was utilized to simulate a series of ballistic impact tests conducted by NASA using a rectangular block projectile of Inconel 718 with sharp edges and corners, impacting Aluminum 2024 flat panels at oblique angles of incidence. A full ballistic impact simulation model was created with over twenty million solid elements and used to conduct approximately one hundred ballistic impact simulations. Overall, the ballistic impact simulations showed highly comparable results with the NASA tests in terms of projectile residual velocities, failure shapes of the target plates, and projectile penetration behavior. Based on a series of ballistic impact simulations, the ballistic limit velocities of the projectile were predicted.
Get full access to this article
View all available purchase options and get full access to this chapter.
REFERENCES
Børvik, T., Hopperstad, O. S., and Pedersen, K. O. (2010). “Quasi-brittle fracture during structural impact of AA7075-T651 aluminum plates,” International Journal of Impact Engineering, Volume 37, Issue 5, Pages 537–551.
Buyuk, M. (2014). “Development of a new metal material model in LS-DYNA part 2: Development of a tabulated thermo-viscoplastic material model with regularized failure for dynamic ductile failure prediction of structures under impact loading.”, P2.
Dolci, S., Carney, K., Wang, L., Kan, C. D., and Du Bois, P. (2016). “Incorporation of inconel-718 material test data into material model input parameters for *MAT_224,” 14th International LS-DYNA Users Conference, Dearborn MI.
Emmerling, W., Altobelli, D., Carney, K., and Pereira, M. (2014). “Development of a new metal material model in LS-DYNA part 1: FAA, NASA, and industry collaboration background.”, P1.
LSTC (2017). LS_DYNA keyword user’s manual, volume I and II, version R10.0, Livermore, California.
Park, C. K., Carney, K., Du Bois, P., Cordasco, D., and Kan, C. D. (2020). “Aluminum 2024-T351 input parameters for *MAT_224 in LS-DYNA,” (In progress).
Recht, R. F., and Ipson, T. W. (1963). “Ballistic perforation dynamics,” Journal of Applied Mechanics, Volume 30, Pages 384–390.
Ruggeri, C., Revilock, D., Pereira, M., Emmerling, W., and Queitzsch, G. (2015). “Impact and penetration of thin Aluminum 2024 flat panels at oblique angles of incidence.”.
Seidt, J. D. (2014). “Development of a new metal material model in LS-DYNA part 3: Plastic deformation and ductile fracture of 2024 aluminum under various loading conditions.”, P3.
Information & Authors
Information
Published In
Earth and Space 2021
Pages: 152 - 165
Copyright
© 2021 American Society of Civil Engineers.
History
Published online: Apr 15, 2021
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.