Ballistic Damage in Carbon/Epoxy Composite Panels

7-1-2.jpg
7-1-2.jpg

Ballistic Damage in Carbon/Epoxy Composite Panels

9.95

Author(s): R. Bartholomeusz; John J. Wang
No pages: 7
Year: 2004
Article ID: 7-1-2
Keywords: finite element model, firepower and protection
Format: Electronic (PDF)

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Abstract: Ballistic tests were carried out using carbon/epoxy composite panels and standard ball munitions. Impact and residual velocities of the projectiles and damage area, including delamination, of the test panels were measured. FATEPEN prediction and Dyna3D simulation were conducted. Residual velocities and hole areas predicted by FATEPEN are comparable to, but do not accurately agree with, the measured residual velocities and the visible damage areas on the specimens. Residual velocities predicted by Dyna3D are closer to the measured velocities. Similar to the FATEPEN prediction, hole areas predicted by Dyna3D are comparable to the visible damage areas on the specimens. Delamination areas predicted by Dyna3D appear to agree with the measurement reasonably well. Hence Dyna3D appears to be a useful tool for evaluation of delamination and thus structure residual strength of composite panels after ballistic impact.