Numerical Simulation of Adiabatic Shear Bands in Ti-6Al-4V Alloy Due to Fragment Impact

Report No. ARL-RP-91
Authors: Muge Fermen-Coker
Date/Pages: March 2005; 10 pages
Abstract: This report is a reprint of a summary paper from the 24th Army Science Conference Proceedings, prepared in accordance with the format and guidance provided by the conference. It discusses the development and validation of a computational capability to accurately model highly localized deformations in complex projectile-target interactions germane to survivability and lethality technologies for the Army?s Future Combat Systems. Onset and propagation of adiabatic shear bands are investigated by studying the ballistic impact of 20-mm steel fragments against Ti-6Al-4V plates. Numerical simulations are carried out using a three-dimensional localization model being developed for CTH, an Eulerian wave propagation code. The results provided good agreement with experimental observations.
Distribution: Approved for public release
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Last Update / Reviewed: March 1, 2005