TY - JOUR
T1 - A study of hypervelocity impact on cryogenic materials
AU - Ohtani, K.
AU - Numata, Daiju
AU - Kikuchi, T.
AU - Son, Meiu
AU - Takayama, K.
AU - Togami, K.
N1 - Funding Information:
Authors wish to thank Messes. H. Ojima, K. Kikuta and M. Anyouji of ISWRL, Tohoku University for their devotion in conducting the present experiment. This research was partially supported by the Grant-in-Aid for Scientific Research COE 1203 offered by the Ministry of Education, Science, Sorts and Culture, Japan.
PY - 2006/12
Y1 - 2006/12
N2 - This paper reports a result of hypervelocity impact experiments on cryogenically cooled aluminum alloys and a composite material. Experiments are carried out on a target palate at 122 K. Aluminum spheres at 1.95 km/s in 50 kPa air were impinged against the target plate at cryogenic temperature and the result was compared with room temperature target plates. Hypervelocity impact (HVI) processes were visualized with shadowgraph arrangement and recorded with high-speed video camera and to ensure the temperature dependence we compared HVI tests with metal target plates with AUTODYN 2D and SPH numerical simulations. We found that cryogenic impacts created slight differences of impact damage from room temperature ones, i.e., the shape and averaged diameters of HVI crater holes were less at cryogenic impacts.
AB - This paper reports a result of hypervelocity impact experiments on cryogenically cooled aluminum alloys and a composite material. Experiments are carried out on a target palate at 122 K. Aluminum spheres at 1.95 km/s in 50 kPa air were impinged against the target plate at cryogenic temperature and the result was compared with room temperature target plates. Hypervelocity impact (HVI) processes were visualized with shadowgraph arrangement and recorded with high-speed video camera and to ensure the temperature dependence we compared HVI tests with metal target plates with AUTODYN 2D and SPH numerical simulations. We found that cryogenic impacts created slight differences of impact damage from room temperature ones, i.e., the shape and averaged diameters of HVI crater holes were less at cryogenic impacts.
KW - Ballistic range
KW - Cryogenic temperature
KW - Hypervelocity impact
KW - Space debris bumper shield
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U2 - 10.1016/j.ijimpeng.2006.09.025
DO - 10.1016/j.ijimpeng.2006.09.025
M3 - Article
AN - SCOPUS:33845231593
SN - 0734-743X
VL - 33
SP - 555
EP - 565
JO - International Journal of Impact Engineering
JF - International Journal of Impact Engineering
IS - 1-12
ER -