TY - JOUR
T1 - Advantage of oblique collision for debris protector
AU - Shiota, Ichiro
AU - Kohri, Hitoshi
AU - Yumoto, Atsushi
AU - Kato, Masahiko
AU - Tanaka, Koji
AU - Sasaki, Susumu
PY - 2012/3
Y1 - 2012/3
N2 - Space solar power system (SSPS) is expected as one of future sustainable energy sources. Collision of debris with SSPS in space is a matter of concern. The debris fl ies at a speed of more than 7000 m/s and the kinetic energy of the debris is enormous. Then the SSPS will be easily destroyed even if a small debris collides with it. In a former paper, we discussed possibility to construct a thin and light weight CFRP protector by oblique collision. In the former experiment, the CFRP panel was 3 mm in thickness and was cross-laminated unidirectionally aligned carbon fi ber sheets. The collision angle was less than 30 degree. In this experiment, a CFRP panel with laminated plain-weave carbon fi ber sheets was used. The thickness was also 3 mm. As the result, the projectile did not penetrate the CFRP panel at a collision angle of less than 60 degree. Moreover, the projectile did not rebound but slid along the panel surface at the smaller collision angle than 60 degree. From these results, a prospect to construct a thin and lightweight protective panel was obtained. A novel shape of a protector based on oblique collision is proposed.
AB - Space solar power system (SSPS) is expected as one of future sustainable energy sources. Collision of debris with SSPS in space is a matter of concern. The debris fl ies at a speed of more than 7000 m/s and the kinetic energy of the debris is enormous. Then the SSPS will be easily destroyed even if a small debris collides with it. In a former paper, we discussed possibility to construct a thin and light weight CFRP protector by oblique collision. In the former experiment, the CFRP panel was 3 mm in thickness and was cross-laminated unidirectionally aligned carbon fi ber sheets. The collision angle was less than 30 degree. In this experiment, a CFRP panel with laminated plain-weave carbon fi ber sheets was used. The thickness was also 3 mm. As the result, the projectile did not penetrate the CFRP panel at a collision angle of less than 60 degree. Moreover, the projectile did not rebound but slid along the panel surface at the smaller collision angle than 60 degree. From these results, a prospect to construct a thin and lightweight protective panel was obtained. A novel shape of a protector based on oblique collision is proposed.
KW - CFRP
KW - Debris
KW - Oblique collision
KW - SSPS
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U2 - 10.1680/nme.11.00015
DO - 10.1680/nme.11.00015
M3 - Article
AN - SCOPUS:84937701318
VL - 1
SP - 87
EP - 96
JO - Nanomaterials and Energy
JF - Nanomaterials and Energy
SN - 2045-9831
IS - 2
ER -