A statistically-designed test matrix has been developed to govern test conditions for measurement of the fracture toughness properties of A285 carbon steel. The effects of several variables on ductile tearing were investigated. The results of initial J-Integral testing are presented along with preliminary observations and data analysis. These results will contribute to a database of J-resistance (J-R) curves, which will be used for flaw stability analyses in waste storage tanks constructed in the 1950s at the Savannah River Site (SRS). J-Integral toughness tests were conducted to evaluate fracture behavior as functions of composition and orientation around the minimum operating temperature of waste storage tanks at SRS (294 K). The selected ranges of composition and grain size were based on available heats of new and vintage material from archival site sources. The specimen dimensions were designed to represent the thickness of tank wall regions in the structure and to a width that ensured back end constraint after crack extension up to several millimeters. The loading rate was held constant at 8.2 x 10-3 (MPa-root m)/s.


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    Titel :

    Development of mechanical properties database of A285 steel for structural analysis of waste tanks


    Beteiligte:
    Duncan, A.J. (Autor:in) / Subramanian, K.H. (Autor:in) / Sindelar, R.L. (Autor:in) / Miller, K. (Autor:in) / Reynolds, A.P. (Autor:in) / Chao, Y.J. (Autor:in)


    Erscheinungsdatum :

    2001


    Format / Umfang :

    11 Seiten, 8 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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