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Collisional disruption of weakly sintered porous targets at low-impact velocities
Earth, Planets and Space volume 59, pages 319–324 (2007)
Porous structure is common in the asteroids and satellites of the outer planets. In order to study the relationship between the structure of small bodies and their thermal and collisional evolution, we performed impact disruption experiments on porous sintered targets using a light-gas gun at velocities ranging from 10 to 100 m/s. The sintered glass bead targets were prepared to have roughly the same porosity but with different compressive strengths, ranging over an order of magnitude, by controlling sintering duration and temperature. The results of the impact experiments show that the targets of higher compressive strength have higher impact strengths. However, compared to previous results on impact disruption of porous sintered targets with a collisional velocity of approximately 6 km/s, the values of impact strength in this study were found to be lower by an order of magnitude.
Britt, D. T., D. Yeomans, K. Housen, and G. Consolmagno, Asteroid density, porosity, and structure, in Asteroids III, edited by W. F. Bottke, Jr. et al., 485 pp., University of Arizona Press, Tucson, 2002.
Bottke Jr., W. F., et al., Velocity distributions among colliding asteroids, Icarus, 107, 255–268, 1994.
Davis, D. R., et al., Asteroid collisional history: Effects on sizes and spins. in Asteroids II, edited by R. P. Binzel, T. Gehrels, and M. Matthews, pp. 805–826, Univ. of Arizona Press, Tucson, 1989.
Davis, D. R. and P. Farinella, Collisional evolution of Edgeworth-Kuiper belt objects, Icarus, 125, 50–60, 1997.
Farinella, P. and D. R. Davis, Short-period comets: Primordial bodies or collisional fragments?, Science, 273, 938–941, 1996.
Fujiwara, A., G. Kamimoto, and A. Tsukamoto, Destruction of basaltic bodies by high velocity impact, Icarus, 31, 277–288, 1977.
Fujiwara, A., P. Cerroni, D. Davis, E. Ryan, and M. Di Martino, Experiments and Scaling laws for catastrophic collisions, in Asteroids II, edited by R. P. Binzel et al., 240 pp., University of Arizona Press, 1989.
Fujiwara, A., et al., The rubble-pile asteroid Itokawa as observed by Hayabusa, Science, 312, 1330–1334, 2006.
Hartmann, W. K., Planet formation — mechanism of early growth, Icarus, 33, 50–61, 1978.
Higa, M., M. Arakawa, and N. Maeno, Size dependence of restitution coefficients of ice in relation to collision strength, Icarus, 133, 310–320, 1998.
Holsapple, K., I. Giblin, K. Housen, A. Nakamura, and E. Ryan, Asteroid impacts: laboratory experiments and scaling laws, in Asteroids III, edited by W. F. Bottke, Jr. et al., 443 pp., University of Arizona Press, Tucson, 2002.
Love, S. G., F. Hörz, and D. E. Brownlee, Target porosity effects in impact cratering and collisional disruption, Icarus, 105, 216–224, 1993.
Matsui, T., T. Waza, K. Kani, and S. Suzuki, Laboratory simulation of planetesimal collisions, J. Geophys. Res., 87, 10,968–10,982, 1982.
Michikami, T., K. Moriguchi, S. Hasegawa, and A. Fujiwara, Ejecta velocity distribution for impact cratering experiments on porous and low strength targets, Planet. Space Sci., 2007.
Nakamura, A. and A. Fujiwara, Velocity distribution of fragments formed in a simulated collisional disruption, Icarus, 92, 132–146, 1991.
Ryan, E. V., D. R. Davis, and I. Giblin, A laboratory impact study of simulated Edgeworth-Kuiper Belt objects, Icarus, 142, 56–62, 1999.
Ryshkewitch, E., Compression strength of porous sintered alumina and zirconia, J. Am. Ceram. Soc., 36, 65–68, 1953.
Takagi, Y., H. Mizutani, and S.-I. Kawakami, Impact fragmentation experiments of basalts and pyrophyllites, Icarus, 59, 462–477, 1984.
Weidenschilling, S. J., D. R. Davis., and F. Marzari., Very early collisional evolution in the asteroid belt, Earth Planets Space, 53, 1093–1097, 2001.
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Setoh, M., Nakamura, A.M., Hirata, N. et al. Collisional disruption of weakly sintered porous targets at low-impact velocities. Earth Planet Sp 59, 319–324 (2007). https://doi.org/10.1186/BF03353111
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