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Damages and matter ejection during HVI on brittle structures: implications for space environment

Michel, Yann and Le Roux, Nacer and Durin, Christian and Espinosa, Christine and Moussi, Aurélie and Chevalier, Jean-Marc and Barrau, Jean-Jacques Damages and matter ejection during HVI on brittle structures: implications for space environment. (2006) In: 10th International Symposium on "Materials in a Space Environment" & 8th International Conference on "Protection of Materials and Structures in a Space Environment", 19-23 June 2006, Collioure, France .

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Abstract

The population of space debris is suspected to grow on earth’s orbits. This might be due to self generation processes occurring when an object impacts a satellite’s surface. As brittle materials, widely used for large solar arrays, are particularly sensitive to HVI in terms of damage and matter ejection, they might play an important role in debris generation. This paper focuses on HVI on thin brittle targets like Hubble silicon solar cells. Simulated and in-situ Front back impacts on both HST-CS and simple SiO2 targets were analyzed. Ejected volume and fragments were collected and filmed to characterize potential secondary debris. A mechanical analysis of damages due to the multilayered structure of solar cells as well as Ls-Dyna SPH calculations have also been performed and are compared to experimental results to assess predictions capabilities of the SPH code.

Item Type:Conference or Workshop Item (Other)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
French research institutions > Commissariat à l'Energie Atomique et aux énergies alternatives - CEA
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA
French research institutions > Centre National des Etudes Spatiales - CNES
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
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Deposited By: ESPINOSA Christine

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