• Login
    View Item 
    •   JScholarship Home
    • Cold-Formed Steel Research Consortium (CFSRC)
    • CFSRC Colloquium 2020
    • View Item
    •   JScholarship Home
    • Cold-Formed Steel Research Consortium (CFSRC)
    • CFSRC Colloquium 2020
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Mechanical properties of cold-formed thick-walled steels at elevated temperatures

    Thumbnail
    View/Open
    35_Li_ID35.pdf (4.000Mb)
    Date
    2020-10-20
    Author
    Li, Yuanqi
    Nie, Zhen
    Metadata
    Show full item record
    Abstract
    To study the mechanical properties of cold-formed thick-walled steels (with a thickness greater than 3mm) at elevated temperatures and the effect of cold-work forming on high-temperature performance of steels, this paper presents a series of specially designed material tests on Q345 steels. The coupons were pretreated by strengthening original plates to different strain levels and aging process. A total of 56 coupon tests were carried out using steady state test method for temperatures ranged from 20 to 600°C. Based on the tests, mechanical properties including yield strengths, ultimate strengths, elasticity modulus and stress-strain curves were obtained. Then, the influence of cold-work forming for steels at ambient and elevated temperatures were investigated by comparing failure modes, constitutive relationships and retention factors of steels with different strengthening degrees. Further, for predicting the mechanical properties of cold-formed thick-walled steels at elevated temperatures, a set of revision coefficients for hot-rolled steels was proposed depending on the tests data. Finally, verification tests on specimens cut from the typical cold-formed thick-walled steel tube have been conducted to validate the proposed prediction model.
    URI
    http://jhir.library.jhu.edu/handle/1774.2/63147
    Collections
    • CFSRC Colloquium 2020

    DSpace software copyright © 2002-2016  DuraSpace
    Policies | Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of JScholarshipCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Policies | Contact Us | Send Feedback
    Theme by 
    Atmire NV