STP1296

    An Efficient Method for Calculating Multiaxial Elasto-Plastic Notch Tip Strains and Stresses under Proportional Loading

    Published: Jan 1997


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    Abstract

    A method for calculating elasto-plastic notch tip strains and stresses in bodies subjected to proportional multiaxial loading is presented. Notch tip strains and stresses are estimated using the generalized Neuber's rule and equivalent strain energy density method. These estimates form upper and lower bounds of the exact solution. All necessary relationships in the form of five simultaneous algebraic equations are derived for a general multiaxial stress state. An efficient solution method is proposed enabling fast calculation of numerical values and the choice of the appropriate solution. This method may be particularly useful for fatigue analysis of notched components.

    Keywords:

    elastic-plastic notch tip stresses and strains, proportional multiaxial loading, generalized Neuber rule, generalized strain energy density method, numerical solution algorithm


    Author Information:

    Reinhardt, W
    Nuclear Engineering, Babcock & Wilcox International, Cambridge, Ontario

    Moftakhar, A
    Nuclear Engineering, Babcock & Wilcox International, Cambridge, Ontario

    Glinka, G
    University of Waterloo, Waterloo, ON


    Paper ID: STP16258S

    Committee/Subcommittee: E08.08

    DOI: 10.1520/STP16258S


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