Debris Cloud Material Characterization for Hypervelocity Impacts of Single- and Multi-Material Projectiles on Thin Target Plates

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

Materials Science Forum ◽

10.4028/www.scientific.net/msf.993.826 ◽

2020 ◽

Vol 993 ◽

pp. 826-835

Author(s):

Wei Qi Tang ◽

Kun Zhang ◽

Yan Sen Li ◽

Yang Wang ◽

Ya Ting Zhang ◽

...

Keyword(s):

Metallic Glasses ◽

Smoothed Particle Hydrodynamics ◽

Areal Density ◽

Hypervelocity Impacts ◽

Al 6061 ◽

Ejection Angle ◽

Particle Hydrodynamics ◽

Smoothed Particle ◽

Debris Cloud ◽

Whipple Shield

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.

Download Full-text

Application of Digital Particle Tracking and Schlieren Imaging to Study Debris Cloud and Shockwave Formation During Hypervelocity Impacts

AIAA Scitech 2021 Forum ◽

10.2514/6.2021-0725 ◽

2021 ◽

Author(s):

Gavin Lukasik ◽

Jacob Rogers ◽

Kalyan Raj Kota ◽

Justin W. Wilkerson ◽

Thomas E. Lacy ◽

...

Keyword(s):

Particle Tracking ◽

Schlieren Imaging ◽

Hypervelocity Impacts ◽

Debris Cloud

Download Full-text

Simulation of Characteristics of Debris Cloud Produced by Hypervelocity Impact

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.940.300 ◽

2014 ◽

Vol 940 ◽

pp. 300-305 ◽

Cited By ~ 1

Author(s):

Wen Lai Ma ◽

Wei Zhang ◽

Bao Jun Pang

Keyword(s):

Smoothed Particle Hydrodynamics ◽

Space Debris ◽

Normal Incidence ◽

Hypervelocity Impact ◽

Critical Systems ◽

Hypervelocity Impacts ◽

Cloud Characteristics ◽

Particle Hydrodynamics ◽

Smoothed Particle ◽

Debris Cloud

All spacecraft in low orbit are subject to hypervelocity impacts by meteoroids and space debris. These impacts can damage spacecraft flight-critical systems, which can in turn lead to catastrophic failure of the spacecraft. The numerical simulations of characteristics of debris cloud produced by an aluminum sphere projectile hypervelocity impact on different material bumpers at normal incidence have been carried out by using the SPH (smoothed particle hydrodynamics) technique. The effects of impact velocity, the ratio t/d of the bumper thickness to the projectile diameter and the bumper materials on the debris cloud characteristics are presented.

Download Full-text

Debris Cloud Material Characterization for Hypervelocity Impacts of Single- and Multimaterial Projectiles on Thin Target Plates

Shock and Vibration ◽

10.1155/1995/390721 ◽

1995 ◽

Vol 2 (4) ◽

pp. 273-287 ◽

Cited By ~ 5

Author(s):

William P. Schonberg

Keyword(s):

Damage Assessment ◽

High Speed ◽

Center Of Mass ◽

Leading Edge ◽

Hypervelocity Impact ◽

Cloud Formation ◽

Assessment Methodology ◽

High Speed Impact ◽

Debris Cloud ◽

Cloud Material

The key to conducting an accurate damage assessment of a target impacted by a high speed projectile is the use of a robust assessment methodology. To accurately determine total target damage, a damage assessment methodology must include the effects of discrete impacts by solid debris cloud fragments as well as impulsive loadings due to molten and vaporous debris cloud material. As a result, the amount of debris cloud material in each of the three states of matter must be known to accurately assess total target damage and break-up due to a high speed impact. This article presents a first-principles based method to calculate: the amount of material in a debris cloud created by a perforating hypervelocity impact that is solid, molten, and vaporous; the debris cloud leading edge, trailing edge, center-of-mass, and expansion velocities; and the angular spread of the debris cloud material. The predictions of this methodology are compared against those of empirically based lethality assessment schemes as well as numerical and empirical results obtained in previous studies of debris cloud formation.

Download Full-text