Regolith behavior under asteroid-level gravity conditions: low-velocity impact experiments
نویسندگان
چکیده
منابع مشابه
Low-speed impact simulations into regolith in support of asteroid sampling mechanism design I_ Comparison with 1-g experiments
This study is carried out in the framework of sample-return missions to asteroids that use a low-speed projectile as the primary component of its sampling mechanism (e.g., JAXA’s Hayabusa and Hayabusa2 missions). We perform numerical simulations of such impacts into granular materials using different projectile shapes under Earth's gravity. We then compare the amounts of ejected mass obtained i...
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High-resolution images of the surface of asteroid Itokawa from the Hayabusa mission reveal it to be covered with unconsolidated millimeter-sized and larger gravels. Locations and morphologic characteristics of this gravel indicate that Itokawa has experienced considerable vibrations, which have triggered global-scale granular processes in its dry, vacuum, microgravity environment. These process...
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Satish Chaparala (SID Member) Liang Xue Da Yu Seungbae Park Abstract — Response of brittle plate-like structures such as glass panels to impact loads has been the subject of many research studies. Different compositions of glass are used in wide variety of applications in daily life. Of interest in this study are the glass panels that are used in consumer electronics devices such as mobile phon...
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ژورنال
عنوان ژورنال: Progress in Earth and Planetary Science
سال: 2018
ISSN: 2197-4284
DOI: 10.1186/s40645-018-0222-5