STP668

    Initial Experimental Investigation of Tearing Instability Theory

    Published: Jan 1979


      Format Pages Price  
    PDF (200K) 15 $25   ADD TO CART
    Complete Source PDF (11M) 15 $65   ADD TO CART


    Abstract

    An initial experimental investigation was conducted to confirm the theory of tearing instability developed in previous work. A simple testing program was selected which employed 3-point bend specimens with various crack size to specimen depth ratios and an additional spring bar to easily adjust effective specimen span (or loading system compliance).

    All stable-unstable behaviors observed in the tests are in good agreement with those predicted by the theory. Thus the present study demonstrates the appropriateness of the tearing instability analysis, presenting guidelines for its further development.

    Keywords:

    tearing instability, crack stability, experimental fracture mechanics, J-integral, 3-point bend tests, crack propagation


    Author Information:

    Paris, PC
    Professor of mechanics, senior research associate, and graduate research assistants, Washington University, St. Louis,

    Tada, H
    Professor of mechanics, senior research associate, and graduate research assistants, Washington University, St. Louis,

    Ernst, H
    Professor of mechanics, senior research associate, and graduate research assistants, Washington University, St. Louis,

    Zahoor, A
    Professor of mechanics, senior research associate, and graduate research assistants, Washington University, St. Louis,


    Paper ID: STP35834S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP35834S


    CrossRef ASTM International is a member of CrossRef.