JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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Other TitleHypervelocity impact tests on a new multilayer debris shield
Author(jpn)田中 真; 赤星 保浩; 矢守 章; 佐々木 進
Author(eng)Tanaka, Makoto; Akahoshi, Yasuhiro; Yamori, Akira; Sasaki, Susumu
Author Affiliation(jpn)東海大学; 九州工業大学; 宇宙航空研究開発機構 宇宙科学研究本部; 宇宙航空研究開発機構 宇宙科学研究本部
Author Affiliation(eng)Tokai University; Kyushu Institute of Technology; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science; Japan Aerospace Exploration Agency Institute of Space and Astronautical Science
Issue Date2004-06
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
Publication title第23回宇宙エネルギーシンポジウム 平成15年度
The 23rd ISAS Space Energy Symposium March 9, 2004
Start page99
End page103
Publication date2004-06
AbstractIn order to protect space structure against space debris impacts, it is indispensable to develop a bumper shield with strength materials. The high strength fiber is one of potential materials from a viewpoint of strength, lightweight, and flexibility. The purpose of this study was to develop a single bumper shield using high strength fibers and new bumper materials against medium size debris impacts. Developed was a multilayer bumper shield using Vectran fibers, a fiber net, a polyester sheet, and a shock absorber. Hypervelocity impact tests were carried out by a railgun accelerator of the Institute of Space and Astronautical Science. The experimental results showed that the developed shield (the single bumper) could stop the polycarbonate projectile with 13.9 mm in diameter, 0.9 g in weight, and 6.9 km/s in velocity. The thickness of the new shield is about 21 mm, and the total areal density is 15 kg/sq m. The projectile impacted the single bumper shield and produced a hole of 80 mm in diameter. But the projectile was destroyed into the shield, and did not reach on surface of an aluminum block that is located behind the shield.
Keywordsspace debris; multilayer debris shield; shock absorber; polyester sheet; fiber net; hypervelocity impact; railgun; aerospace environment; impact test; 宇宙デブリ; 多層膜デブリシールド; 衝撃吸収材; ポリエステルシート; 繊維網; 超高速衝撃; レールガン; 航空宇宙環境; 衝撃試験
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会

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