• Login
    View Item 
    •   Shocker Open Access Repository Home
    • Graduate Student Research
    • ETD: Electronic Theses and Dissertations
    • Master's Theses
    • View Item
    •   Shocker Open Access Repository Home
    • Graduate Student Research
    • ETD: Electronic Theses and Dissertations
    • Master's Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Finite element modeling of single shear fastener joint specimens: a study of clamp-up, friction and plasticity effects

    View/Open
    t11096_Ghods.pdf (2.794Mb)
    Date
    2011-12
    Author
    Ghods, Farzad
    Advisor
    Keshavanarayana, Suresh R.
    Metadata
    Show full item record
    Abstract
    A three dimensional solid finite element model was assembled to investigate the influence of parameters such as friction coefficient, fastener preload and material plasticity on the structural response of Hi-Lok bolted single-lap joints under remote tension/compression loading. Three different specimen types which produce nominal load transfer levels of 6%, 30% and 50% have been investigated. The effects of these parameters where characterized in terms of load transfer, fastener rotation, and stress concentration factor. Friction coefficient has been varied from 0 to 1.25 and the fastener preloads of 1.35lbs, 13.5lbs and 135lbs were assigned for different simulations. Furthermore, constant amplitude load cycles of 15, 20, 30 and 40Ksi were applied in different FE analysis. Results of elastic and isotropic hardening based elastic-plastic material models have been compared and effects of plasticity have been explored. The analysis results indicate that friction coefficient is the most important parameter and friction has a great influence on load transfer, stress concentration and fastener rotation, for all loading conditions, and for both elastic and elastic-plastic material models. Friction, which is affected by both friction coefficient and clamp-up force, has the most influence on load transfer and stress concentration factor at lower remote loads and smaller amount of load transfer. Plasticity which is more prevalent at high remote loads reduces load transfer and stress concentration factors, especially during tension.
    Description
    Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Aerospace Engineering.
    URI
    http://hdl.handle.net/10057/5168
    Collections
    • AE Theses and Dissertations
    • CE Theses and Dissertations
    • Master's Theses

    Browse

    All of Shocker Open Access RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy TypeThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Type

    My Account

    LoginRegister

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    DSpace software copyright © 2002-2023  DuraSpace
    DSpace Express is a service operated by 
    Atmire NV