@inproceedings{oai:jaxa.repo.nii.ac.jp:00008138, author = {東出, 真澄 and 田中, 真 and 赤星, 保浩 and 遠山, 文雄 and Higashide, Masumi and Tanaka, Makoto and Akahoshi, Yasuhiro and Toyama, Fumio}, book = {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}, month = {Jun}, note = {In order to protect space structure against space debris impacts, it is indispensable to develop a new bumper shield made of strength materials. Metal mesh material is the one of potential materials because of both lightweight and flexible. The purpose of this study is to investigate protection capability of metal mesh materials. In this study selected were two kinds of metal mesh materials; Stainless and Copper. Hypervelocity impact tests were carried out by a two-stage light gas gun using a polycarbonate projectile with 10 mm in diameter, 10 mm in thickness and 1 g in mass. The impact velocity of the projectile was 3.2 km/s. The images of fragments produced by the impact of projectile were taken by two X-ray cameras. Two cameras had delay time. The images were analyzed and the kinetic energy of fragments was calculated. Evaluated was protecting ability of metal mesh material quantitatively compared the kinetic energy before with after impact. As the result, it was found that a stainless mesh with 1 mm in thickness reduced kinetic energy by up to 38 percent but a copper mesh reduced by up to 97 percent. The stainless mesh generated fragments with large degree in spray angle in the rear of the mesh and reduced velocity by up to 48 percent. The copper mesh generated fragments with small degree and reduced velocity by up to 97 percent. The experimental result showed that the metal mesh material is available as a first bumper material. In addition, mesh materials may reduce the total weight of debris shields drastically., 資料番号: AA0047275022}, pages = {104--108}, publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)}, title = {デブリ衝突を模擬した金属メッシュ材料への衝突実験}, year = {2004} }