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Structural assessment and material validation of 3D printed corrugated spacecraft debris shields

Year: 2021
Type: conference-paper
Abstract: In the context of novel and lighter satellite designs, this paper investigates a 3D printing approach to the standard satellite orbital debris shields.Shields are currently produced using conventional manufacturing techniques and are limited in terms of design variation.3D printing can lead to a wider range of more optimized shield designs that are easier and faster to fabricate compared with standard samples.Moreover, metal printing may enable the shields to augment and support the primary structure of the satellite in its load bearing functions.The objective of this paper is to present a structural and shielding assessment of AlSi10Mg 3D printed single corrugated orbital debris shields based on experimental data generated from 6 static structural samples and 8 hypervelocity impact (HVI) samples manufactured and tested during the ReDSHIFT project.The samples were subjected to three point bending (3PB), compression and HVI -the three loading scenarios relevant for both structural and shielding purposes.Experimental results from testing of these novel structures are compared with those for baseline structures to gain insight into the structural value of the proposed novel shields and into their protection capabilities.Finally, the experimental results are compared with those from Finite Element Analysis (FEA) carried out within the ANSYS APDL 2020 environment (bending and compression) and Smooth Particle Hydrodynamics (SPH) analysis in AUTODYN (HVI).The use of relevant theory is made to interpret and explain the results.A material model for printed AlSi10Mg is validated and can be used in the development of such novel corrugated shields that have the potential of playing a structural role.
Language: English
Open Access status: green
OpenAlex ID: W3174692907
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