Use of Miniature Specimen Test and Finite Element Method for Evaluation of Yield Strength and Fracture Toughness in Metallic Alloys

    Volume 39, Issue 1 (January 2011)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 10 August 2010

    Page Count: 8


    Reddy, K. Harshavardhan
    Graduate Student, Centre for ITMMEC, Indian Institute of Technology Delhi, New Delhi, Hauz Khas

    Partheepan, G.
    Faculty of Engineering and Applied Science, Memorial Univ. of Newfoundland, St John’s, NL

    Pandey, R. K.
    Dept. of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, Hauz Khas

    Sehgal, D. K.
    Dept. of Applied Mechanics, Indian Institute of Technology Delhi, New Delhi, Hauz Khas

    (Received 20 December 2009; accepted 28 June 2010)

    Abstract

    The present paper describes the method for evaluation of yield strength and fracture toughness of three materials, namely, linepipe steel, aluminum (Al) alloy, and gray cast iron using miniature specimen test. Conventional standard test methods consume more material and money and may damage the integrity of the in-service component. Miniature specimen tests overcome all these demerits. A method is outlined to predict the yield strength and fracture toughness from the miniature test through the empirical relations. The validation of results has been carried out by conducting standard tensile and fracture toughness tests according to ASTM standards. Further, the finite element method has been used to simulate the miniature test. A close agreement is observed between the results of the miniature test and standard tests.


    Paper ID: JTE102933

    DOI: 10.1520/JTE102933

    ASTM International is a member of CrossRef.

    Author
    Title Use of Miniature Specimen Test and Finite Element Method for Evaluation of Yield Strength and Fracture Toughness in Metallic Alloys
    Symposium , 0000-00-00
    Committee A01