Numerical Simulation of Ti-Based Metallic Glasses as Whipple Shield Bumper by Smoothed Particle Hydrodynamics Methods

Abstract:

The debris clouds produced by hypervelocity impacts on Ti-based metallic glasses (Ti-MGs) and Al-6061-T6 bumper were studied by smoothed particle hydrodynamics (SPH) methods. The change of the vanguard shape, dispersion and ejection angle were also obtained with the same bumper thickness to the projectile-diameter ratio (h/d). For the same h/d valve, the debris cloud of Ti-MGs bumper had a more widely dispersion and ejection angle than with Al-6061-T6 bumper; the vanguard velocity of Ti-MGs bumper was also lower than Al-6061-T6 bumper. Moreover, for the same bumper areal density, the vanguard of the debris cloud in MGs bumper was plane-shaped. This study demonstrates that Ti-MGs exhibit an excellent bumper protection performance, which asset can pave new paths for their further applications.

• Periodical: Materials Science Forum (Volume 993)
• Pages: 826-835
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.993.826
• Online since: May 2020
• Authors: Wei Qi Tang, Kun Zhang*, Yan Sen Li, Yang Wang, Ya Ting Zhang, Bing Chen Wei
• Keywords: Hypervelocity Impact, Metallic Glasses (MGs), Smoothed Particle Hydrodynamics (SPH), Whipple Shield

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