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    High-velocity impacts in porous solar system materials

    Access Status
    Open access via publisher
    Authors
    Miljković, Katarina
    Collins, G.
    Chapman, D.
    Patel, M.
    Proud, W.
    Date
    2012
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Miljkovic, K. and Collins, G. and Chapman, D. and Patel, M. and Proud, W. 2012. High-velocity impacts in porous solar system materials, pp. 871-874.
    Source Title
    AIP Conference Proceedings
    DOI
    10.1063/1.3686416
    ISBN
    9780735410060
    School
    Department of Applied Geology
    URI
    http://hdl.handle.net/20.500.11937/51768
    Collection
    • Curtin Research Publications
    Abstract

    High-velocity impacts on planetary surfaces are common events in the solar system. The conse-quences of such impacts depend, in part, on the properties of the target solar system body, such as surface strength, porosity and gravity. Bodies in the solar system exhibit a range of material properties, hence it is difficult to specify a general material model. Experimental investigations of impacts onto solar system sur- faces often use sand as an analogue material and hydrocode simulations of impact often assume a sand-like equation of state (EoS) and strength model, which is valid only for a limited range of porosities. To simu- late impact on smaller bodies in the solar system, such as asteroids, comets or smaller planetary satellites, requires a more appropriate material model. We compare iSALE-2D hydrocode simulations of impacts in porous granular materials with results from laboratory impact experiments made by [1] to test and refine a general-purpose material model applicable for a wide range of porous materials in the solar system. © 2012 American Institute of Physics.

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