• Login
    View Item 
    •   Home
    • Journals and Magazines
    • Meteoritics & Planetary Science
    • Meteoritics & Planetary Science, Volume 43 (2008)
    • Meteoritics & Planetary Science, Volume 43, Number 12 (2008)
    • View Item
    •   Home
    • Journals and Magazines
    • Meteoritics & Planetary Science
    • Meteoritics & Planetary Science, Volume 43 (2008)
    • Meteoritics & Planetary Science, Volume 43, Number 12 (2008)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Validation of numerical codes for impact and explosion cratering: Impacts on strengthless and metal targets

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    15659-18012-1-PB.pdf
    Size:
    13.71Mb
    Format:
    PDF
    Download
    Author
    Pierazzo, E.
    Artemieva, N.
    Asphaug, E.
    Baldwin, E. C.
    Cazamias, J.
    Coker, R.
    Collins, G. S.
    Crawford, D. A.
    Davison, T.
    Elbeshausen, D.
    Holsapple, K. A.
    Housen, K. R.
    Korycansky, D. G.
    Wünnemann, K.
    Show allShow less
    Issue Date
    2008-01-01
    Keywords
    hydrocodes
    shock codes
    impact cratering
    impact modeling
    
    Metadata
    Show full item record
    Citation
    Pierazzo, E., Artemieva, N., Asphaug, E., Baldwin, E. C., Cazamias, J., Coker, R., ... & Wünnemann, K. (2008). Validation of numerical codes for impact and explosion cratering: Impacts on strengthless and metal targets. Meteoritics & Planetary Science, 43(12), 1917-1938.
    Publisher
    The Meteoritical Society
    Journal
    Meteoritics & Planetary Science
    URI
    http://hdl.handle.net/10150/656500
    DOI
    10.1111/j.1945-5100.2008.tb00653.x
    Additional Links
    https://meteoritical.org/
    Abstract
    Over the last few decades, rapid improvement of computer capabilities has allowed impact cratering to be modeled with increasing complexity and realism, and has paved the way for a new era of numerical modeling of the impact process, including full, three-dimensional (3D) simulations. When properly benchmarked and validated against observation, computer models offer a powerful tool for understanding the mechanics of impact crater formation. This work presents results from the first phase of a project to benchmark and validate shock codes. A variety of 2D and 3D codes were used in this study, from commercial products like AUTODYN, to codes developed within the scientific community like SOVA, SPH, ZEUS-MP, iSALE, and codes developed at U.S. National Laboratories like CTH, SAGE/RAGE, and ALE3D. Benchmark calculations of shock wave propagation in aluminum-on-aluminum impacts were performed to examine the agreement between codes for simple idealized problems. The benchmark simulations show that variability in code results is to be expected due to differences in the underlying solution algorithm of each code, artificial stability parameters, spatial and temporal resolution, and material models. Overall, the inter-code variability in peak shock pressure as a function of distance is around 10 to 20%. In general, if the impactor is resolved by at least 20 cells across its radius, the underestimation of peak shock pressure due to spatial resolution is less than 10%. In addition to the benchmark tests, three validation tests were performed to examine the ability of the codes to reproduce the time evolution of crater radius and depth observed in vertical laboratory impacts in water and two well-characterized aluminum alloys. Results from these calculations are in good agreement with experiments. There appears to be a general tendency of shock physics codes to underestimate the radius of the forming crater. Overall, the discrepancy between the model and experiment results is between 10 and 20%, similar to the inter-code variability.
    Type
    Article
    text
    Language
    en
    ISSN
    1945-5100
    ae974a485f413a2113503eed53cd6c53
    10.1111/j.1945-5100.2008.tb00653.x
    Scopus Count
    Collections
    Meteoritics & Planetary Science, Volume 43, Number 12 (2008)

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.