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Computational assessment of ballistic impact on a high strength structural steel/polyurea composite plate

El Sayed, T. and Mock, Willis, Jr. and Mota, Alejandro and Fraternali, Fernando and Ortiz, Michael (2009) Computational assessment of ballistic impact on a high strength structural steel/polyurea composite plate. Computational Mechanics, 43 (4). pp. 525-534. ISSN 0178-7675.

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Ballistic impact on a polyurea retrofitted high strength structural steel plate is simulated and validated. A soft material model for polyurea, which is capable of capturing complex mechanical behavior characterized by large strains, hysteresis, rate sensitivity, stress softening (Mullins effect), and deviatoric and volumetric plasticity, is calibrated against several uniaxial tension experiments and a three-dimensional release wave experiment to capture both the material point and bulk behaviors. A porous plasticity model is employed to model the high strength structural steel and localization elements are included to capture adiabatic shear bands and strain localization. The computational capabilities of these models are demonstrated by the prediction of the target plate displacement, which shows excellent agreement with experiments.

Item Type:Article
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URLURL TypeDescription ReadCube access
Fraternali, Fernando0000-0002-7549-6405
Ortiz, Michael0000-0001-5877-4824
Additional Information:© Springer-Verlag 2008. Received: 21 March 2008 / Accepted: 25 July 2008 / Published online: 27 August 2008. The authors would like to thank the Office of Naval Research (ONR) for their invaluable support via grant number N00014-04-1-0359. The authors would also like to thank Professor R. J. Clifton and Tong Jiao from Brown University for providing the release-wave experimental data and C. M. Roland from the Naval Research Laboratory in Washington D.C. for providing the polyurea tension experimental data. Also acknowledged are Philip Dudt and Gilbert Lee of the Naval Surface Warfare Center, Carderock Division for providing funds for the impact experiment and Jeffry Fedderly of the Carderock Division for providing the steel/polyurea target.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-04-1-0359
Naval Surface Warfare CenterUNSPECIFIED
Subject Keywords:Ballistic; Polyurea; Projectile; Composite; Viscoelastic; Porous plasticity; Strain localization
Issue or Number:4
Record Number:CaltechAUTHORS:20090807-150328529
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Official Citation:El Sayed, T., Mock, W., Mota, A. et al. Comput Mech (2009) 43: 525. doi:10.1007/s00466-008-0327-6
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:14875
Deposited By: Ruth Sustaita
Deposited On:07 Aug 2009 22:59
Last Modified:24 Feb 2020 10:30

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