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ISS Flight Op - Improved EVA Suit MMOD Protection Using STF-Armor TM and Self-healing Polymers University of Delaware/NASA Johnson Space Center, Human Exploration & Operations and Space Technology Mission Directorates

We are evaluating the stability and efficacy of advanced thermal meteoroid garments (TMG), for use in the extra-vehicular activity (EVA) suit lay-ups, which contain advanced nanocomposite textiles and self-healing materials. This work is being conducted under a NASA EPSCoR award. The goal of the flight experiment on the International Space Station (ISS) is to test the TMGs in the extreme thermal, vacuum, chemical (atomic oxygen) and radiation environment of low-earth orbit (LEO). The proposed material testing is to be conducted on the ISS and is aimed at advancing the technology readiness level (TRL) of MMOD-resistant and self-healing materials that have been developed and tested on Earth. Proof-of-concept and prototype testing has been successfully performed on MMOD-resistant STF-textiles in the TMG lay-ups using hypervelocity testing at NASA Marshall Space Flight Center and White Sands Test Facility with the assistance of the NASA Johnson Space Flight Center’s Hypervelocity Impact Technology (HVIT) Group. These results were presented at the 2015 HVI conference and are published in the proceedings. In addition, we are developing self-healing polymers for use in providing additional protection whereby a compromised bladder layer can self-heal through a mechanochemical mechanism. Further earth-based testing under simulated low earth orbit conditions at Marshall Space Flight Center is proposed to validate these concepts. A flight experiment on the ISS is planned for 2017, which will expose these TMG lay-ups containing both STF-textiles and self-healing polymers to the conditions of LEO using the MISSE test facility on the ISS. www.nasa.gov/epscor/stimuli

NASA funded research team at the University of Delaware working on improved EVA Suit MMOD protection using STF-Armor and selfhealing polymers: from left to right: Jingsi Gao (PhD candidate), Colin Cwalina (PhD candidate and Delaware Space Grant Consortium Fellowship Awardee), Melissa Gordon (PhD candidate) and Dr. Richard Dombrowski (research scientist).

Steve Huning, ISS RIM, Johnson Space Center

Prof. Norman J. Wagner, Science PI, University of Delaware

NASA EPSCoR Stimuli 2014-15

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EPSCoR Stimuli 2014-15  

NASA Office of Education’s Aerospace Research & Career Development (ARCD) is pleased to release NASA EPSCoR Stimuli, a collection of univers...

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